DE102020100409B4 - Methods for detecting particle contamination inside a building and arrangement - Google Patents

Abstract

A method for detecting particle contamination inside (2) a building (1) by means of a detection device (3, 4), wherein a first detection device (3) is located at a first location (5) inside (2) the building (1), wherein the first detection device (3) generates initial detection information (101) describing particle contamination in the building (1), and a further detection device (4) is arranged at at least one further location (6) inside (2) the building (1), wherein the further detection device (4) generates further detection information (102) describing particle contamination in the building (1), and the detection information (101, 102) is transmitted to a central processing unit (7) in order to derive particle contamination information (103) from the combined detection information (101, 102), characterized in that the particle contamination information (103) contains information about at least a quantity of particles at at least a variable reference location inside (2) the building (1) describes, wherein the variable reference location is assigned to a reference object (9) located inside (2) the building (1) at defined times and places, wherein particle contamination information (103) of the reference object (9) is generated by taking into account detection information (101, 102) of defined places at defined times.

Description

The invention relates to a method for detecting particle contamination inside a building by means of a detection device and an arrangement.

Methods for detecting particle contamination inside a building using a detection device are known in principle from the prior art. For example, detection devices for particle contamination are known which, when placed inside a building, can detect the particle contamination there.

WO 2018/078181 A1 reveals a data collection arrangement for the creation of a work plan.

EP 1 856 453 B1 reveals a dynamic control of dilution ventilation in critical fitting environments.

US 2015/0077737 A1 discloses a system and a method for monitoring an environment.

DE 10 2017 003 581 A1 discloses a method for the preparation of lincomycin-3 monoacylate compounds.

The invention is based on the objective of providing a method which, in particular with regard to a simple, fast and cost-effective measure, reliably detects particle contamination, especially area-dependent contamination, inside a building.

The problem is solved by the subject matter of the independent claims. The dependent claims relate to possible embodiments.

The invention relates to a method for detecting particle contamination inside a building by means of a detection device. The method is characterized in that a first detection device is arranged at a first location inside the building, wherein the first detection device generates initial detection information describing particle contamination in the building, and a further detection device is arranged at at least one further location inside the building, wherein the further detection device generates additional detection information describing particle contamination in the building, and the detection information is transmitted to a central processing unit in order to derive particle contamination information from the combined detection information. "Derive" here means relating and/or calculating, i.e., particle contamination information is generated depending on the combined detection information, which may be weighted differently. Simultaneous measurement of particle concentration at a first and a second location inside the building makes it possible to obtain more accurate and/or more plausible information about particle contamination inside the building and/or on or in an object located at least temporarily inside the building. The measurement device can, for example, be configured to detect articles, particularly nanoparticles.

The particles can include industrial soot and/or fine dust and/or ultrafine dust (i.e., particles with a thermodynamic diameter of less than 0.1 µm) and/or an aerosol. For example, the particles detectable by the detection device can have an aerodynamic diameter of 5 µm as the cutoff particle diameter. Alternatively or additionally, the detection device can be configured to detect particles that comply with the _PM10 and/or _PM2.5 guideline standards and/or enable the processing unit to calculate and output the _PM10 and/or _PM2.5 particle counts from the detection information obtained via the detection devices.

In other words, the detection system can be configured to detect pollution in the air or within the gases inside the building. For example, if the building is used as a paint shop, airborne contaminants or particles can negatively affect the painting process. This could occur, for instance, if suspended particles or particles are bound to the permissible surface area of the object being painted by the paint, thus negatively impacting the paint layer formation. Alternatively or additionally, it can also prove advantageous in other manufacturing and/or assembly processes within an industrial or laboratory setting to detect particle contamination inside a building, particularly in specific areas. For example, this can be beneficial in wafer manufacturing rooms and/or assembly halls for the assembly of lead-free bearings (e.g., in engine technology), as these processes are sensitive to airborne contaminants. Contamination can affect the manufacturing and/or assembly result due to suspended particles and especially particles.

The detection devices used can, for example, determine the current state of particle count or quantity (volume and/or weight fraction of particles per unit volume) and/or particle type (e.g., composition and/or shape of the particles) within a building, depending on the location. The recorded current state can be compared with a target state stored in a memory device using a reference tool (e.g., a microcontroller and/or a computer program). If necessary, recommendations for action and/or countermeasures can then be issued or implemented automatically or after confirmation by an operator.

The detection of particle contamination inside a building, particularly area-dependent detection, can also yield indirect information, such as whether a closable opening in the building was open, closed, or partially open at specific times. For example, area- or location-dependent particle contamination detection can reveal typical changes in particle contamination for an open, closed, or partially open state of a closable opening in the building. From this, the opening status and/or type or extent of the opening can be determined. In a specific implementation scenario, this could involve detecting a typical change in particle contamination—specifically, the particle type and/or quantity—at defined locations inside the building when a window or door of an industrial building is opened, due to the resulting airflow. From this, the open status at a specific time can be deduced.

It is possible that the first and/or at least one further detection device detects, for example, the temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type of a gas or gas mixture flowing into the interior of the building, in particular a gas or gas mixture containing a number of particles to be detected, and generates detection information comprising temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type information. Preferably, the temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type information is taken into account to generate the particle contamination information.

Temperature, humidity, flow velocity, and/or flow direction information can alternatively or additionally be used to generate a recommendation for action and/or a control signal for activating a device to influence particle contamination inside the building. The particle quantity can be expressed, for example, as particle concentration, including consideration of a specific particle type. Temperature, humidity, flow velocity, and/or flow direction can also be used to calculate and/or determine the particle quantity, particle concentration, and/or particle type at a location different from the actual locations of the detection devices (e.g., an intermediate area). For example, particle contamination at a location or intermediate area between two detection devices can be determined or derived based on the determined particle contamination, particle quantity, and/or particle type at the detection device locations, and additionally by considering the flow velocity, flow direction, temperature, and/or humidity at the detection device locations.

The first data entry from the first detection device can, for example, describe a measured value of a particle quantity (especially including a particle type) at the first location, and a further data entry from at least one additional detection device can describe a measured value of a particle quantity (especially including a particle type) at at least one further location. Thus, at least two data entries provide location-specific information on the particle quantity and/or particle type.

Preferably, the particle contamination information includes an assignment of the determined measurement data to the respective locations where these measurements were taken. This allows the measurement data to be present as location-specific or location-assigned information within the particle contamination information. Therefore, it is possible for particle contamination information to represent two- or three-dimensional information about the particle quantity and/or particle type, resolved to the The spatial area, i.e., area-dependent, is encompassed. In a two- or three-dimensional representation or data collection, the particle quantity and/or particle type can be resolved or specified via the two- and/or three-dimensional spatial distribution of the particles. At least one alternative or additional dimension of the particle contamination information (or the particle contamination information dataset) can also include temporal information. The linking of measured value information with spatial and/or temporal information can, for example, take place within the detection device, so that the detection information transmitted from the detection device to a central processing unit already contains at least a partial, and in particular, a complete, spatial and/or temporal aspect.

Alternatively or additionally, for example, a first acquisition information from the first acquisition device can describe measured values of temperature and/or humidity and/or flow velocity and/or flow direction at the first location, and a further acquisition information from the second acquisition device can describe measured values of temperature and/or humidity and/or flow velocity and/or flow direction at the second location. For example, the acquisition information of the at least two, and in particular all, acquisition devices contains similar, preferably identical, types of measured values (i.e., temperature and/or humidity and/or flow velocity and/or flow direction). The at least one piece of measured value acquired by the acquisition device can, for example, relate to a gas or gas-particle mixture passed through a measuring range of the respective acquisition device. Preferably, the particle contamination information includes an assignment of the determined measured values to the locations where these values or measured values were acquired.

It can be advantageous to assign or link at least one piece of recorded information, in particular the recorded measurement information, with time information describing the time of recording. The particle contamination information can include an assignment of the recorded information, in particular temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type information, with the time information. The time information can be generated, for example, in the recording device and/or in the processing unit. The assignment of the time information to a measurement can be generated in the recording device and/or in a processing unit. Thus, it is possible for the measurement information, or at least one determined measurement, of a recording device to be assigned to a time information or timestamp within that device. Consequently, this time-measurement information pair can be transmitted to a higher-level processing unit. In the course of assigning a time value to measurement information determined by the recording devices, it can prove advantageous if the timing elements or the means determining the time values of the respective recording devices are indirectly or directly compared and/or synchronized with each other.

In an optional embodiment, at least one measurement value and/or time value and/or location value can be output or displayed in a static and/or dynamic representation. For example, in a dynamic representation model, the location-specific particle contamination or the change in location-dependent particle contamination can be displayed over time.

It is possible that, through or by means of the computing unit, at least a partial, in particular a complete, evaluation of acquisition information from at least two acquisition devices takes place, taking into account measurement information, location information and time information of the respective measurement values in order to generate particle contamination information.

Furthermore, the processing unit can calculate or derive a representative particle contamination value or a fictitious measurement value for locations or areas between the specific measurement points of the detection devices. This allows for the provision of at least partially, and in particular completely, continuous or seamless location-dependent particle contamination information by combining the fictitious or calculated particle contamination values of the intermediate locations with the particle contamination values directly determined at the locations of the detection devices. In addition to the particle quantity and/or particle type, temperature and/or flow velocity and/or flow direction and/or humidity can also be used to determine the fictitious particle contamination values for the intermediate locations or areas. In particular, the flow velocity and/or humidity can be used to determine the fictitious particle contamination values for the intermediate locations or areas. The flow direction and humidity are used to estimate the particle quantity and/or particle type at intermediate locations, based on the particle quantity and/or particle type at the locations where the detection devices are located. By considering the measured flow direction and velocity (e.g., also the volumetric flow rate) at the measurement points (the locations of the detection devices), for example, a weighting of the detection information from the respective detection devices, dependent on the flow direction and/or velocity, can lead to good results for the particle contamination at an intermediate location.

The particle contamination information describes information about at least the quantity and/or type of particles at at least one fixed reference location inside the building and/or about at least a quantity and/or type of particles at at least one variable reference location inside the building. Preferably, the particle contamination information describes a quantity, in particular a statistical one, of particles in or at the reference location.

Particle contamination information can refer to an absolute or relative quantity of particles, particularly for a fixed or variable location. The absolute quantity of particles can, for example, be expressed as the number of particles present at a static and/or variable location. Thus, particle contamination information can indicate, for instance, that a specific quantity of particles is present at a fixed location inside the building. Alternatively or additionally, particle contamination information can indicate that a specific amount of particles was added, remained constant, or decreased at a fixed location inside the building over a defined period (e.g., after a purifying airflow to that location).

A variable location or reference location can be understood, for example, as an object that moves at least temporarily within the building. In this context, particles that settle on or detach from the object, at least temporarily, and especially during its entire stay within the building, can be determined and output via particle contamination information. The type and/or distribution of particles located on, deposited on, or detached from the object can also be included as content in the particle contamination information.

The variable reference location is assigned to a reference object located at defined locations inside the building at defined times. The particle contamination information of the reference object is generated by considering acquisition data, particularly measurement data, from defined locations at defined times. In other words, information about the temporal locations and/or movement patterns of an object inside a building allows the acquisition data from the detection devices to be analyzed and used in such a way that a change or continuity in the particle contamination of an object moving inside the building can be represented or derived as new information.

In an optional further development of the invention, the detection information can be used for several objects moving inside the building. This means, for example, that a first detection data point at a defined time is considered for two different objects, with different weightings of at least a part of the detection data, to determine the particle contamination information of these two objects.

Furthermore, it may be stipulated, for example, that at least one influencing factor is considered when determining particle contamination information. This influencing factor relates to the quantity and/or type of particles and/or temperature and/or humidity and/or flow velocity and/or flow direction of an object and/or medium entering and/or exiting the building. Thus, for example, an airflow entering the building through an open factory door and its load of articles and/or moisture (humidity) can be taken into account in order to realistically interpret or represent the flow conditions and/or thermodynamic processes within the gas-particle mixture inside the building in light of the detection information acquired by the detection devices. These thermodynamic processes, determined in this way, can in turn be used to determine or estimate particle contamination information at intermediate locations.

Preferably, the influencing information can be a particle loading level of the object and/or the medium during entry into the interior of the building and/or during exit from the interior of the building, such as Alternatively or additionally, the influencing information can relate to the temperature, thermal energy, flow direction and/or flow velocity and/or humidity of a defined volume unit of the object and/or medium entering and/or exiting the interior of the building.

The influence information can, for example, include at least one sensor value acquired via a sensor device. Preferably, the object and/or medium is detected outside and/or inside the building to acquire and generate the influence information. By detecting the medium and/or object entering and/or exiting the building with a sensor device, the sensor values determined by the sensor device can be used to generate influence information that takes into account the influence of the object or gas flow entering and/or exiting the building on the prevailing conditions inside the building with regard to particle contamination.

Optionally, a sensor system can be used to determine whether, for example, a building door is (fully) open, partially open, or closed, or, in the case of historical data, whether it was in a closed state. If the building has multiple closable openings (e.g., doors, windows, and/or gates) or multiple access points to the interior of the building or to at least a section of the building, it is possible that, depending on whether one or more openings are at least partially open simultaneously, information about drafts—i.e., an increased airflow volume—is taken into account.

The first and/or at least one further acquisition device can be connected to each other and/or to the processing unit via a wired and/or wireless data connection. Preferably, data exchange between at least two acquisition devices and/or between at least one acquisition device and the processing unit takes place via a communication system, in particular a serial one. The communication system can, for example, comprise a Local Interconnect Network (LIN) and/or a Single-drop digital communication interface for small sensors and actuators (SDCI), such as IO-Link, and/or an RS485 system (also called EIA-485) and/or a Process Field Network (Profinet) and/or a Transmission Control Protocol/Internet Protocol (TCP/IP). A first level or a sensor level can, for example, be addressed via a CAN bus. The data connection between at least two acquisition devices and/or between at least one acquisition device and the processing unit can, for example, be established via the cloud.

The at least one acquisition device, in particular all acquisition devices, can, for example, by means of a processing unit on the acquisition device side, (a) perform at least a partial analysis and/or a modification of the acquisition information before it is passed on to a computing unit, and/or (b) perform a fault analysis of the operation of the acquisition device and/or of faulty measured values acquired by the acquisition device. Preferably, especially in the event of a fault, fault analysis information relating to the fault analysis is passed on to the computing unit. For this purpose, it may be advantageous if the at least one acquisition device, in particular all acquisition devices, is/are equipped with a high-performance processor and/or microcontroller. A high-performance processor can be, for example, an ARM/X86 processor with 32 bits and/or a clock frequency of 1 GHz–3 GHz. Preferably, the processor and/or microcontroller on the acquisition device side is designed such that an online or real-time analysis of the measured values acquired or generated by the acquisition device for the formation of the acquisition information can be performed.

The detection information can be displayed, for example, as spatially resolved particle contamination information superimposed on an image of at least one section of the building, particularly on a display device. Preferably, the visualized information can be displayed, for example, as a sequence of images, particularly a three-dimensional image sequence, to illustrate the temporal progression of the particle contamination. The image can depict a section of the building, i.e., a sub-room of a larger room in the building and/or at least one room from a multitude of rooms in the building. Finally, the image can also depict the entire building, and the superimposition can display particle contamination data for the entire building. The image can, for example, show a schematic image of at least one part of the building or a real image of at least one part of the building. In the case of a real image, this can be displayed, for example, on a display device, particularly on at least one. The camera system is arranged to capture images. Consequently, it is possible that, in the manner of "augmented reality", an image of at least one part of a building and/or a location inside the building and/or a variable location and/or an object (which moved or is moving within the building at times) can be superimposed with at least one particle contamination information.

Finally, the display can include a three-dimensional visualization of particle contamination information, particularly in a virtual space. For example, particle contamination can be displayed to a user of smart glasses, showing location and/or time-specific information as they view the interior of a building or building section and/or an object. The display can be shown on a mobile device, such as a smartphone, tablet, or laptop.

The computing unit can, for example, output countermeasure information depending on the particle contamination information, in particular via an output unit (e.g. a display, a mobile electronic device) to a user. Alternatively or additionally, a control signal can be output to a device that influences (a) the particle contamination inside the building and/or (b) the particle contamination of a medium and/or object entering the building and/or (c) the particle contamination of a medium and/or object exiting the building and/or (d) the humidity and/or the flow velocity and/or the flow direction and/or the temperature of the building's interior and/or (e) the humidity and/or the flow velocity and/or the flow direction and/or the temperature of a medium and/or object entering the building and/or (f) the humidity and/or the flow velocity and/or the flow direction and/or the temperature of a medium and/or object exiting the building, or this device can be controlled with the control signal. In other words, depending on the particle contamination information generated from the detection device's data, a target/actual comparison involving at least one criterion (e.g., temperature, particle type, particle quantity, flow velocity, flow direction, etc.) can be performed. If a predefined threshold is exceeded or fallen below, a recommendation for action can be issued, or a device can be controlled via a control signal. The influencing device could, for example, be a cleaning system for at least some areas inside the building and/or for an object that is moved at least temporarily inside the building. These systems can perform cleaning and/or one of the aforementioned actions manually or automatically. For example, the system could include an air conditioning system for the building's interior.

In one application example, a device can be activated as a countermeasure or control signal to increase humidity when a predefined particle concentration threshold is exceeded. For example, by increasing the humidity, provided it has not yet reached a predefined level, the particles in the room air can agglomerate and settle, thus reducing the relative particle concentration in the room air, at least in certain areas. This allows, for example, a painting process to be carried out with little or no negative impact from particles in the room air.

A countermeasure issued after predefined thresholds have been exceeded or fallen below can, for example, include a recommendation or instruction for action, such as recommending or requiring the execution of a manual and/or at least partially computer- and/or robot-assisted cleaning process. In the example of a paint shop, this could include, for instance, pre-cleaning an object to be painted (e.g., a vehicle) and/or cleaning a tool within the paint shop.

In addition to the method for detecting particle contamination inside a building by means of a detection device, the invention relates to an arrangement comprising a first and at least one further detection device that can be arranged or is already arranged in a building, as well as a computing unit for carrying out the method described herein. This arrangement can be understood as a set or as several related items that can be installed in a building, in particular in an industrial hall. At least one, and in particular all, of the detection devices can, for example, be installed in the building, and the computing unit can, for example, be placed at a location outside the building.

All advantages, details, designs and/or features of the method according to the invention are transferable or applicable to the arrangement according to the invention.

• 1 eine Prinzipdarstellung einer Draufsicht in das Innere eines mit einer Vielzahl an Erfassungseinrichtung ausgestatteten Gebäudes gemäß einem Ausführungsbeispiel;
• 2 eine Prinzipdarstellung einer Erfassungseinrichtung gemäß einem Ausführungsbeispiel;
• 3 eine Prinzipdarstellung der Abbildung einer Partikelkontaminationsinformation;
• 4 eine schematisches Prinzipdarstellung von Verfahrensabläufen gemäß einem Ausführungsbeispiel.

The invention is explained in more detail with reference to exemplary embodiments in the drawings. These show:

• 1 a schematic representation of a top view into the interior of a building equipped with a large number of detection devices according to an exemplary embodiment;
• 2 a schematic representation of a detection device according to an exemplary embodiment;
• 3 a schematic representation of the mapping of particle contamination information;
• 4 A schematic representation of process flows according to an exemplary embodiment.

In 4 The following are schematic procedures for a method of detecting particle contamination inside 2 of a building 1 by means of at least one detection device 3, 4. A first detection device 3 is arranged at a first location 5 inside 2 of the building 1, wherein a first detection information 101 describing particle contamination in the building 1 is generated via the first detection device 3, and a further detection device 4 is arranged at at least one further location 6 inside 2 of the building 1, wherein a further detection information 102 describing particle contamination in the building 1 is generated via the further detection device 4, cf. 1 The acquisition information 101, 102 is transmitted to a central processing unit 7 in order to derive particle contamination information 103 from the combined acquisition information 101, 102. The processing unit 7 can be located at least partially within a acquisition device 3, 4 or – as in 1 depicted as a unit separate from the detection devices 3, 4, in particular as a unit placed outside the building 1 and separated from the detection devices 3, 4.

Building 1 can, for example, serve as a paint shop and/or assembly hall for painting and/or assembling components and/or subassemblies. Building 1 has at least one opening 8, 8' that can be closed, at least temporarily. Through this at least one closable opening 8, 8', an object 9 to be painted (e.g., components to be assembled) can be brought into or taken out of the interior 2 of Building 1.

The first and/or at least one further detection device 3, 4 can, for example, detect the temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type of a gas or gas mixture flowing into the interior 2 of the building 1, in particular a gas or gas mixture containing a number of particles to be detected, and generate detection information 104, 105, 106, 107, 108, 109 comprising temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type information.

Preferably, the temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type information 104, 105, 106, 107, 108, 109 is taken into account to generate the particle contamination information 103.

A first detection information 101 of the first detection device 3 can, for example, describe a measurement information 110 of a particle quantity and/or particle type at the first location, and a further detection information 102 of the further detection device 4 can describe a measurement information of a particle quantity and/or particle type at the further location 6. The particle quantity can, in particular, include information on the particle type, preferably on the particle quantities of individual particle types within a volume unit of the room air inside 2 of the building 1 and/or on or at a surface of an object 9. Preferably, the particle contamination information 103 includes an assignment of the determined measurement information 110 to the respective locations 5, 6 of the detection of these measurement values or of the measurement values determined by the detection devices 3, 4 on which the measurement information 110 is based.

A first acquisition information 101 of the first acquisition device 3 can, for example, describe a measured value 110 of the temperature and/or humidity and/or flow velocity and/or flow direction at the first location 5, and a further acquisition information 102 of the further acquisition device 4 can describe a measured value of the temperature and/or humidity and/or flow velocity and/or flow direction at the further location 6. Preferably, the particle contamination information 103 includes an assignment of the determined measured value information to the locations 5, 6 of the acquisition of these measured values. In other words, the particle contamination information 103 includes location information.

For example, the detection information 101, 102, in particular the detected measurement information 110, can be assigned to a time information 111 describing the time of detection of the detection information 101, 102, in particular the measurement information 110. Preferably, the particle contamination information 103 comprises an assignment of the detection information 101, 102, in particular temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity information 104, 105, 106, 107, 108, 109, to the time information 111.

The time information 111 can be generated in the acquisition device 3, 4 and/or in the processing unit 7, or assigned to the acquisition information 101, 102 and/or at least one specific measured value or at least one specific measured value information 110. For example, a storage unit (not shown) can be arranged or configured in or on the acquisition device 3, 4 and/or in or on the processing unit 7 to store the information assignment.

The computing unit 7 enables, for example, at least partial, and in particular complete, evaluation of recording information 101, 102 from at least two recording devices 3, 4, cf. 4 . In this process, a measurement information 110, a location information 112, 112' and a time information 111 (e.g. the time of recording the measurement values) of the respective measurement values can be taken into account in order to generate, in particular to calculate or derive, a particle contamination information 103.

The particle contamination information 103 describes information about at least the quantity of particles at at least one fixed reference location (e.g., location 5, 6) inside building 2 and/or about at least a quantity of particles at at least one variable reference location (e.g., at object 9) inside building 2. Here, the particle contamination information 103 can, for example, specify a quantity of particles in or at reference location 5, 6, 9, particularly a statistical quantity.

A variable reference location can be, for example, a defined volume that moves along a predefined path and at a predefined speed, at least partially, through the interior 2 of the building. For example, a component or a vehicle is considered the object that travels a distance 18 within the interior 2 of the building 1. According to one example, the distance 18 can lead from a first opening 8 inside the building 2 to another opening 8'. The particle contamination information 103 regarding this variable reference location can indicate the change in particle contamination on or at the object 9 or enable its determination. In other words, it can be determined what type and/or quantity of particles are deposited or detached on or at the object 9 as a result of its movement along the path from a first opening 8 to another opening 8'.

The variable reference location, or object 9, is assigned to a reference object located inside building 2 at defined times and locations, whereby the particle contamination information 103 of the reference object is generated by considering acquisition information 101, 102, in particular measurement information 110, from defined locations 5, 6 at defined times. For example, object 7, or the reference object, can be located at a specific time in an intermediate area 10, which lies between two locations 5, 6, each equipped with an acquisition device 3, 4. In order to obtain a representative value or representative information for particle contamination information 103 for this intermediate area 10, the detection information 101, 102 of the nearest, in particular all, detection facilities 3, 4 can now be used, whereby the detection information 101, 102 originating from the detection facilities 3, 4 is used in the generation of the particle contamination information 103 for the intermediate location 10 using different factors or taking into account a different weighting.

To determine the particle contamination information 103, at least one influencing information 113 can be considered, wherein the influencing information 113 relates to a particle quantity and/or particle type and/or temperature and/or humidity and/or wind speed of an object 9 and/or medium entering and/or exiting the interior 2 of building 1. The object 9 and/or the medium can exit the interior 2 of building 1 or enter the interior 2 of building 1 at openings 8, 8'. Preferably, the influencing information 113 represents a particle loading level of the object 9 and/or the medium during its entry (of the object or medium) into the interior 2 of building 1 and/or during its exit from the interior 2 of building 1.

The influence information 113 can, for example, include at least one sensor value (not shown) detected via a sensor device 11; preferably, the object 9 and/or the medium is detected outside and/or inside the interior 2 of the building 1 to detect and generate the influence information 113.

The first and/or at least one further acquisition device 3, 4 can be connected to each other and/or to the processing unit 7 via a wired and/or wireless data connection 12. Preferably, data exchange between at least two acquisition devices 3, 4 and/or between at least one acquisition device 3, 4 and the processing unit 7 takes place via a communication system, in particular a serial one. The at least one data connection 12 can transmit data wired or wirelessly; for example, the at least one data connection 12 can be configured as a radio connection, preferably a short-range radio connection, in particular a Bluetooth radio connection. Furthermore, the data connections 12 can be configured at least partially as unidirectional or bidirectional data connections 12.

At least one acquisition device 3, 4, in particular all acquisition devices 3, 4, can, for example, by means of a (in particular each) acquisition device-side processing unit 13, 13', (a) perform at least a partial analysis and/or a modification of the acquisition information 101, 102 before it is passed on to a computing unit 7 and/or (b) perform a fault analysis of the operating mode of the acquisition device 3, 4 and/or of faulty recorded measured values of the acquisition device 3, 4; preferably, fault analysis information relating to the fault analysis, acquired and/or generated by the processing unit 13, 13', is passed on to the computing unit 7.

The at least one piece of information 101, 102 can, for example, be spatially resolved particle contamination information 103 superimposed with a The information 16 is to be displayed as visualized information 16 in at least one section of building 1, in particular on a display device 15. Preferably, the visualized information 16 is presented as a sequence of images or as , in particular as a three-dimensional image sequence, to illustrate the temporal progression of particle contamination 103. In 3 is a perspective shown, which, based on different area shading and/or color coding, outputs the area-dependent or location-dependent degree of particle contamination. In other words, based on the at least two detection devices 3, 4 and the detection information 101, 102 generated by them, particle contamination information 103 can be generated, which, according to a kind of map (e.g., mapping), displays location-resolved information about the particle contamination. In the 1 In the exemplary embodiment shown, a large number of detection devices 3, 4 (each shown as a circle) are placed in building 1. The placement of the detection devices 3, 4 can be, for example, as shown in 1 depicted - regularly or irregularly. The multitude of detection devices 3, 4 can be used to output respective particle contamination information for different surface areas and/or volume sections of building 1; this is exemplified by the area marking of the floor areas of the in 3 This is evident in Building 1. The area markings can be, for example, dotted, lined, and/or checkered. The different area markings can indicate different minimum values for particle contamination, in particular the particle quantity and/or particle shape.

For example, depending on the particle contamination information 103, the computing unit 7 can output countermeasure information 114. Alternatively or additionally, the processing unit 7 can, for example, depending on the particle contamination information 103, send a control signal 115 to (a) the particle contamination inside 2 of building 1 and/or (b) the particle contamination of a medium and/or object 9 entering the interior 2 of building 1 and/or (c) the particle contamination of a medium and/or object 9 exiting the interior 2 of building 1 and/or (d) the humidity and/or the flow velocity and/or the flow direction and/or the temperature of the interior 2 of building 1 and/or (e) the humidity and/or the flow velocity and/or the flow direction and/or the temperature of a medium and/or object 9 entering the interior 2 of building 1 and/or (f) the humidity and/or the flow velocity and/or the flow direction and/or the temperature of a medium exiting the interior 2 of building 1 Output of the medium and/or object 9 emanating from building 1, influencing facility 17.

In 1 An arrangement is specified which includes a first and at least one further recording device 3, 4 which can be arranged or is arranged in a building 1, as well as a computing unit 7 for carrying out the procedure described herein.

2 Figure 1 shows a detection device 3, 4 consisting of a housing with a through-opening 19. Room air located in the vicinity of the detection device 3, 4 can enter through the through-opening 19, and in particular be drawn in. At least one sensor can be installed inside the detection device 3, 4 to determine or record the measured value information 110 described above. Preferably, the detection device 3, 4 has a further through-opening (not shown) through which the room air entering the interior of the detection device 3, 4 can exit. This allows a draft of room air to pass through the detection device 3, 4, and its continuous detection can be carried out by sensors located inside the detection device 3, 4. Furthermore, the housing of the detection device 3, 4 may include operating elements (e.g., buttons) and/or display means and/or a data interface for wired or wireless data transmission to another detection device 3, 4 and/or a computing unit 7. Finally, the detection device 3, 4 may have an electrical energy storage device for power supply. Alternatively or additionally, the detection device 3, 4 may include an interface (not shown) for connecting a power supply cable. Preferably, the detection device 3, 4 is attached to an element, in particular a support post, of a building 1, especially a factory building, by means of a force-fit, form-fit, and/or material-fit connection.

Reference symbol list

1

Building

2

Interior of 1

3

first recording device

4

further recording device

5

first place

6

another location

7

computing unit

8.8'

opening

9

object

10

Intermediate area

11

Sensor device

12

Data connection

13, 13'

Processing unit

14

illustration

15

Display device

16

visualized information

17

Furnishings

18

Route

19

Passage opening

101

initial data collection

102

further recording information

104

Particle contamination information

104

Temperature information

105

Humidity information

106

Flow velocity information

107

Flow direction information

108

Particle quantity information

109

Particle type information

110

Measurement information

111

Time information

112, 112'

Location information

113

Influence information

114

Countermeasure information

115

Control signal

Claims (14)

A method for detecting particle contamination inside (2) a building (1) by means of a detection device (3, 4), wherein a first detection device (3) is located at a first location (5) inside (2) the building (1), wherein first detection information (101) describing particle contamination in the building (1) is generated via the first detection device (3), and a further detection device (4) is arranged at at least one further location (6) inside (2) the building (1), wherein further detection information (102) describing particle contamination in the building (1) is generated via the further detection device (4), and the detection information (101, 102) is transmitted to a central computing unit (7) in order to derive particle contamination information (103) from the combined detection information (101, 102), characterized in that the particle contamination information (103) contains information about at least a quantity of particles at describes at least one variable reference location inside (2) the building (1), wherein the variable reference location is assigned to a reference object (9) located inside (2) the building (1) at defined times and locations, wherein particle contamination information (103) of the reference object (9) is determined by taking into account detection information (101, 102) is generated at defined locations at defined times. Procedure according to Claim 1 , characterized in that the first and/or at least one further detection device (3, 4) detects the temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type of a gas or gas mixture flowing into the interior (2) of the building (1), in particular a gas or gas mixture containing a number of particles to be detected, and generates detection information (104, 105, 106, 107, 108, 109) comprising temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type information, preferably the temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type information (104, 105, 106, 107, 108, 109) is used to generate the Particle contamination information (103) is taken into account. Procedure according to Claim 1 or 2 , characterized in that the first detection information (101) of the first detection device (3) describes a measured value information (110) of a particle quantity at the first location (5) and the further detection information (102) of the further detection device (4) describes a measured value information (110) of a particle quantity at the further location (6), preferably the particle contamination information (103) includes an assignment of the determined measured value information (110) to the respective locations (5, 6) of the detection of these measured values. Method according to one of the preceding claims, characterized in that the first detection information (101) of the first detection device (3) describes a measured value information (110) of the temperature and/or humidity and/or flow velocity and/or flow direction at the first location (5) and the further detection information (102) of the further detection device (4) describes a measured value information of the temperature and/or humidity and/or flow velocity and/or flow direction at the further location (6), preferably the particle contamination information (103) comprises an assignment of the determined measured value information to the locations (5, 6) of the detection of these measured values. Method according to one of the preceding claims, characterized in that an assignment of the at least one detection information (101, 102), in particular the detected measurement information (110), is made with a time information (111) describing the time of the detection of the at least one detection information (101, 102), in particular the measurement information (110), preferably the particle contamination information (103) comprises an assignment of the detection information (101, 102), in particular a temperature and/or humidity and/or flow velocity and/or flow direction and/or particle quantity and/or particle type information (104, 105, 106, 107, 108, 109), with the time information (111). Method according to one of the preceding claims, characterized in that the computing unit (7) performs at least partial, in particular complete, evaluation of acquisition information (101, 102) of at least two acquisition devices (3, 4), taking into account a measurement information (110), a location information (112, 112') and a time information (111) of the respective measurement values in order to generate particle contamination information (103). Method according to one of the preceding claims, characterized in that the particle contamination information (103) describes information about at least the quantity of particles at at least one fixed reference location inside (2) the building (1), preferably the particle contamination information (103) describes a, in particular statistical, quantity of particles in or at the fixed reference location. Method according to one of the preceding claims, characterized in that at least one influencing information (113) is taken into account to determine the particle contamination information (103), wherein the influencing information (113) relates to a particle quantity and/or particle type and/or temperature and/or humidity and/or flow velocity and/or a flow direction of an object (9) and/or medium entering the interior (2) of the building (1) and/or exiting the interior (2) of the building (1), preferably the influencing information (113) represents a particle loading level of the object (9) and/or the medium during entry into the interior (2) of the building (1) and/or during exit from the interior (2) of the building (1). Procedure according to Claim 8 , characterized in that the influencing information (113) includes at least one sensor value detected via a sensor device (11), preferably detection of the object (9) and/or the medium takes place outside and/or inside the interior (2) of the building (1) by means of the Sensor device (11) for recording and generating the influence information (113). Method according to one of the preceding claims, characterized in that the first and/or the at least one further acquisition device (3, 4) are connected to each other and/or to the computing unit (7) via a wired and/or a wireless data connection (12), preferably data exchange takes place between at least two acquisition devices (3, 4) and/or between at least one acquisition device (3, 4) and the computing unit (7) via a communication system, in particular a serial communication system. Method according to one of the preceding claims, characterized in that at least one acquisition device (3, 4), in particular all acquisition devices (3, 4), by means of a processing unit (13, 13') on the acquisition device side, performs at least a partial analysis and/or a modification of the acquisition information (101, 102) before it is passed on to a computing unit (7) and/or performs an error analysis of the operating mode of the acquisition device (3, 4) and/or of faulty measured values of the acquisition device (3, 4), preferably error analysis information relating to the error analysis is passed on to the computing unit (7). Method according to one of the preceding claims, characterized in that the detection information (101, 102) is output as spatially resolved particle contamination information (103) in superimposition with an image (14) of at least one section of the building (1), in particular on a display device (15) as visualized information (16), preferably the visualized information (16) is output as a sequence of images, in particular as a three-dimensional sequence of images, to represent the temporal progression of the particle contamination. A method according to one of the preceding claims, characterized in that the computing unit (7) outputs countermeasure information (114) and/or a control signal (115) to a device based on the particle contamination information (103) – the particle contamination inside (2) the building (1) and/or – the particle contamination of a medium and/or object (9) entering the interior (2) of the building (1) and/or – the particle contamination of a medium and/or object (9) exiting the interior (2) of the building (1) and/or – the humidity and/or the flow velocity and/or the flow direction and/or the temperature of the interior (2) of the building (1) and/or – the humidity and/or the flow velocity and/or the flow direction and/or the temperature of a medium and/or object (9) entering the interior (2) of the building (1) and/or – the humidity and/or the outputs flow velocity and/or flow direction and/or temperature of a medium and/or object (9) exiting from the interior (2) of the building (1). Arrangement comprising a first and at least one further recording device (3, 4) that can be arranged or is arranged in a building (1) and a computing unit (7) for carrying out the method according to one of the preceding claims.