WO2019162340A1

WO2019162340A1 - Method for detecting an event in a room, and area sensor system

Info

Publication number: WO2019162340A1
Application number: PCT/EP2019/054240
Authority: WO
Inventors: Philipp Karl Kollmann; Emanuel Schreiber; Jörg Sieksmeier; Marco Schröder
Original assignee: Ardex Gmbh
Priority date: 2018-02-20
Filing date: 2019-02-20
Publication date: 2019-08-29
Also published as: EP3756175A1; DE102018103793A1; DE102018103793B4

Abstract

The invention relates to a method (500) for detecting an event (3), particularly a presence or movement of a person, in a room (101) of a building (100), by means of an area sensor system (1.2) that is permanently installed in a delimiting element (110) of the room (101). The invention also relates to an area sensor system (1.2).

Description

Method for detecting an event in a room and area sensor

Description

The invention relates to a method for detecting an event, in particular a presence of a person, in a room of a building and an area sensor system, in particular a floor sensor.

From the prior art it is known to monitor buildings or rooms of a building by motion detectors on the presence of persons. However, it is disadvantageous that normally it can only be detected whether a movement has taken place in the room, although this movement can not be localized more accurately. Furthermore, such motion detectors usually require a line of sight to the event, so that in a room of a building, for example by the setting up of furniture, dead spaces may arise in which a detection of the event

not possible. In addition, such motion detectors are often grown as additional components in an area of the room, so that they are clearly visible and thus may possibly adversely affect the visual impression in the room. Furthermore, it is often not possible to distinguish the presence of several persons from the presence of a person or even to assign position changes of individual persons to the respective persons. However, this may be of interest, for example, when visitor flows in a department store are to be analyzed or the activity of individual persons in a room is to be monitored, for example, to recognize an emergency of a person early in a retirement home. In a security-relevant use of such a motion detector, it is also a disadvantage that this is clearly visible for example for a burglar and the burglar avoid the area in the vicinity of the motion and thus can handle.

It is an object of the present invention to at least partially overcome the foregoing disadvantages known from the prior art. In particular, it is an object of the present invention to improve a surveillance of a room.

The above object is achieved by a method for detecting an event with the features of claim 1 and a surface sensor with the features of claim 19.

Further features and details of the invention will become apparent from the dependent claims, the description and the drawings. In this case, features and details that have been described in connection with the method according to the invention are of course also in connection with the surface sensor according to the invention and in each case vice versa, so that with respect to the disclosure of the individual aspects of the invention always reciprocal reference is or may be.

According to the invention, the method for detecting an event in a room of a building by means of a surface sensor permanently installed in a delimiting element of the room comprises the following steps: Monitoring a first detection area by a first sensor element of the area sensor system, wherein the first detection area extends at least partially into the space,

Generating a first measurement signal of the first sensor element as a function of the event,

- Evaluating the event, wherein at least the first measurement signal is processed.

Preferably, the event may be a presence and / or movement of a person in the room. For the purposes of the present invention, a limiting element of the space may preferably be understood to mean a wall, a ceiling or a floor. In particular, the surface sensor can thus be laid, for example, under a floor screed of the floor to provide the monitoring function. Preferably, the surface sensor is in the limiting element, e.g. by incorporating the surface sensor in the production of the boundary element or building of the building embedded. In the sense of the present invention, the surface sensor system can furthermore be understood to mean a sensor system which can monitor at least a region of a surface of the room. The surface sensor system can preferably monitor a surface of the limiting element completely or essentially completely with respect to the event.

The monitoring of the first detection area may include generating the first detection area by the first sensor element. Furthermore, it may be possible by the first sensor element to register a change in the first detection range or to generate the first measurement signal as a function of the change. The monitoring of the first detection range can be actively or passively guided by the first sensor element, in particular by the first sensor element. Thus, it is conceivable that the first detection area is actively generated by the first sensor element, for example, by a monitoring signal is transmitted through the sensor element and from a response of the monitoring signal, the first measurement signal is generated. Furthermore, however, it is also conceivable for the first sensor element to passively provide the first detection area in that the first sensor element has a receiving means, by means of which a signal of the event can be received. So it is conceivable that the first sensor element is aroused inductive, for example, when a person enters the room with their mobile phone, wherein a signal of the mobile phone activates the sensor element and the first measurement signal can be generated. The first measurement signal may preferably be an, in particular analog, electrical signal. In particular, the first measurement signal may include information about the event, for example, whether the event has occurred. Furthermore, the first measurement signal can be assigned to the first sensor element, so that the first measurement signal permits a localization of the event in the first detection area. Such information can be extracted, for example, when evaluating the event by processing the first measurement signal from the first measurement signal and in particular be made available to a user.

Thus, it is possible by the inventive method to detect an event, such as a presence or movement of a person in a room by a sensor integrated into the room and thus can be tailored to the environmental conditions of the room. Thus, it is conceivable that the surface sensor is arranged in a certain area of the room, such as an entrance area, to be able to detect an entry of a person in the room. This can be given in particular a burglar alarm when a resident of the room is in a different location, for example, because he is on vacation. Furthermore, the surface sensor system may be concealed or at least partially concealed in the limiting element, so that the surface sensor does not or only slightly influences the visual impression of the room and / or is not perceived by a burglar, for example.

In the context of the invention, it can further be provided that the method comprises the following steps:

Monitoring a second detection area by a second sensor element of the area sensor system, wherein the second detection area extends at least partially into the space,

Generating a second measuring signal of the second sensor element as a function of the event,

wherein the second measurement signal is taken into account when evaluating the event. Thus, in particular different detection ranges by the surface sensor be provided and monitored. Preferably, further detection areas can be monitored and further measurement signals can be generated, which can finally also be taken into account when evaluating the event. By monitoring the second detection area, a more detailed monitoring of the room can be provided so that further information about the event can be obtained and / or the reliability of the detection of the event is improved. For example, it is conceivable that the presence of several persons can be detected by monitoring the second and / or further detection areas. Furthermore, it is conceivable that the monitoring of the second detection range is used to validate the monitoring result of the first detection range.

In a method according to the invention, it can further be provided that the first and / or second measuring signal comprises a first partial signal at a first time and a second partial signal at a second time, so that a temporal change in the first and / or second detection range by the first and / or second measurement signal is mapped. In particular, in each case the first and second measurement signal may have a first and second partial signal, so that in each case a temporal change in the first and second detection range can be imaged by the first and second measurement signal. Thereby, the accuracy of the method for detecting the event can be further increased. The temporal component also makes it possible to monitor the room not only to see if an event has occurred, but also, if appropriate, how long the event has taken place. This may be advantageous, for example, if the area sensor system is installed in the vicinity of a product in a department store, so that the residence time of a prospective buyer in the vicinity of the product can be measured and marketing information can be obtained thereon. If several detection areas are evaluated in time, a movement of a person can also be reconstructed so that, for example, visitor flows in a department store can be recorded and analyzed. In addition, an application in the health sector is conceivable, for example, in a nursing home, a person's stay can be recorded in terms of the duration in the coverage and security measures are taken from a certain period, since it may be concluded that the person is not moved and thus crashed. Furthermore, it can be detected by the temporal monitoring of multiple coverage areas, whether the person In these multiple detection areas, and in particular over a certain number of detection areas, depending on the spatial extent of the detection areas, it can be concluded that the person has fallen and is lying on the floor. This too can lead to the introduction of security measures.

In the context of the invention, it is also conceivable that the monitoring of the first detection area and / or the monitoring of the second detection area is capacitive. Capacitive monitoring can provide a low-energy monitoring method that can detect by interacting with a person, an activity, or a person's presence in space. In particular, the first and / or second sensor element may be a capacitive sensor element.

In particular, in a method according to the invention, the monitoring of the first detection area may comprise the following step:

- Detecting a first characteristic of a first electric field in the detection range of the surface sensor.

Additionally or alternatively, the monitoring of the second detection area may include the following step:

- Detecting a second characteristic of a second electric field in the second detection range of the surface sensor.

Preferably, the detection of the first and / or second parameter may include measuring the electric field strength, a voltage and / or a current. In particular, the detection can take place over a specific time, so that a change in the first and / or second parameter is detected. The first and / or second sensor element may comprise an electrode, through which, for example, with a body part of a person a plate capacitor can be formed, whose capacity varies depending on a distance of the person and therefore can allow an explanation of the presence of the person. This can be done in a simple manner, a detection of the event by elements of the building and / or the room. As a result, for example, the sensor element completely in the boundary element of the room be integrated and therefore invisible from the outside. In addition, the surface sensor can be low in production, for example, if the first and / or second sensor element has a designed as an electrical conductor sensor electrode.

In particular, it can be provided in a method according to the invention that the first and / or second parameter comprises a permittivity, in particular a change of a permittivity, in the first detection range. The permittivity is in particular the permeability in the first detection area for electric fields. In the event, e.g. a body part enter the first detection area and thereby change the permittivity in the first detection area. This change in the permittivity can be detected capacitively by the first sensor element, in particular based on a proportional relationship between permittivity and capacitance and / or as a function of a geometry of the sensor element. This provides a simple, in particular low-energy possibility of detecting the event in the first detection area.

In the context of the invention, it can further be provided that the monitoring of the first detection area comprises the following step:

- Generating the first electric field in the first detection range by the first sensor element of the surface sensor, in particular wherein the first electric field is generated continuously.

Additionally or alternatively it can be provided that the monitoring of the second detection area comprises the following step:

- Generating the second electric field in the second detection range by the second sensor element of the surface sensor, in particular wherein the second electric field is generated continuously.

The generation of the first and / or second electric field can preferably take place before or simultaneously with the detection of the first and / or second electric field. The detection may include a metrological evaluation of the first and / or second parameter in a measurement signal. Thus, the first and / or the second sensor element in particular in each case have two electrodes, which together form a capacitor or a capacitor, so that an electric field arises between the electrodes, which extends into the first detection area. A change in the electric field leads accordingly to a change in the respective parameter and the measurement signals, which in turn can be used to conclude the event. Under a continuous generation of the first and / or second electric field can be provided that this is generated at regular intervals or permanently. As a result, a time-dependent measurement signal can be generated in a simple manner, which can be concluded with improved reliability and / or higher information content on the event.

Advantageously, it may further be provided in a method according to the invention that the first measurement signal comprises a first digital signal and the generation of the first measurement signal comprises a decentralized conversion of a first analog signal of the first sensor element into the first digital signal. Furthermore, the second measurement signal may comprise a second digital signal, and generating the second measurement signal may comprise a decentralized conversion of a second analog signal of the second sensor element into the second digital signal. Due to the decentralized conversion of an analog signal, the analog signal in the immediate vicinity of the first and / or second sensor element can be further processed, so that a measurement uncertainty can be reduced. For this purpose decentralized evaluation units can be provided for each sensor element, which are connected between the sensor elements and a control unit. In particular, the digital signals can be sent from the decentralized evaluation unit to the control unit, which uses the digital signals for the evaluation of the event and / or can forward it in at least partially processed form.

In a method according to the invention, it is also conceivable that the evaluation of the event comprises at least one of the following steps:

Comparing the first and second measuring signals, and / or

- Assign the event to at least one of the coverage areas. Thus, by comparing the first and second measurement signals, further information about the event can be obtained. For example, it can be determined whether a person moves from the first detection area into the second detection area if it was first detected in the first detection area and then in the second detection area. The comparison of the first and second measurement signal may preferably comprise a comparison with further measurement signals of further detection ranges. By assigning the event to at least one of the detection areas, a localization of the event can thus be carried out, so that, for example, it can be determined in which area of the room the person is staying. Preferably, a combination of a comparison of the first and second measurement signal and an assignment of the event to at least one of the detection areas, so that, for example, a direction of movement within the room is traceable.

In a method according to the invention, it may further be provided that the surface sensor system is arranged in a floor of the room, the first detection area extending at least partially above the first sensor element and / or the second detection area extending at least partially above the second sensor element. Thus, the limiting element of the room may be a floor. This can be equipped in a simple manner with the surface sensor by the surface sensor, for example, can be placed on a component of the floor. Subsequently, a function coating and / or a visible covering can be applied to the surface sensor to mask it. The arrangement in the floor can be used to monitor the entire area or substantially the entire area of the room, in particular independently of other equipment, such as furniture, of the room.

In a method according to the invention, it can further be provided that the method comprises the following step:

- Sending monitoring data of the event to an external computing unit and / or a mobile terminal.

The monitoring data may in particular comprise evaluated measurement signals which have already been set in relative relationship by a control unit, for example, or to which evaluation information already exists, such as a type of the Event, have been created. The external computing unit may include, for example, a server or a desktop PC of a user. The mobile terminal can be understood to mean a tablet, a smartphone or the like which can receive the monitoring data of the event. At the external processing unit or at the mobile terminal, the user can also read the information and / or send control information to the control unit to make adjustments to the area sensor. In particular, receiving control information by the control unit may thus be provided which has been sent in particular by the external computing unit and / or the mobile terminal.

In the context of the invention, it can further be provided that, in particular before monitoring the first and / or second detection range, the following step is performed:

- Calibrate, in particular only, the first sensor element, wherein actual sensor data are determined and compared with reference sensor data or stored as reference sensor data.

By calibrating the first sensor element can be adapted to the ambient conditions of the room. For this purpose, actual sensor data can be generated during calibration, which can reflect the measurement result in the current state. Based on this, for example, an offset to reference sensor data can be determined or the actual sensor data can be stored as reference sensor data, i. H. these can form a kind of zero state, with a deviation from this zero state possibly being detected as an event. In particular, a mobile handheld device can be connected to an edge of the surface sensor system for calibration.

Preferably, in a method according to the invention, the calibration may comprise at least one of the following steps:

automatic recognition of a functional covering and / or a visible covering which at least partially covers the first and / or the second sensor element, - Manual setting of a functional lining and / or a visible covering, which covers the first and / or the second sensor element at least partially.

In particular, the functional coating and the visible covering may at least partially cover the first and second sensor elements. Under the function coating, for example, a screed can be understood, which serves to straighten a floor. On the screed or the functional coating, the visible covering may be arranged, which may comprise a carpet, a laminate, a parquet or the like. Thus, during calibration, the environment can be further considered, in particular based on the actual sensor data, i. e.g. can be concluded on the basis of the first and / or second measuring signal during calibration, on a functional coating and / or a visible covering. By manually adjusting the functional coating and / or the visible covering, in particular, an automatic recognition of the functional coating can be corrected or replaced. If, for example, the user determines during calibration that there is an error in the automatic recognition of the function covering and / or the visible covering, he can make a correction here by means of the manual setting. Thus, a combination of automatic detection and manual adjustment is conceivable.

In a method according to the invention, it can further be provided that the first and / or the second detection area, starting from the sensor element, has a height of greater than or equal to 10 mm, preferably greater than or equal to 25 mm, particularly preferably greater than or equal to 40 mm. As a result, the detection range can extend through the functional coating and / or the visible coating on the sensor elements, for example, while still providing reliable detection.

In the context of the invention, it may further be provided that the space is heated by a heating means of the area sensor system during the monitoring of the first and / or second detection area at the first and / or second detection area. Thus, it is conceivable that the surface sensor is laid together with a surface heating, which may form, for example, a floor heating of the room. As a result, there may be an extended range of functions of the area sensor system, which provides a double benefit, namely the heating of the room and the monitoring of the room. As a result, in particular for an owner of the room, the costs for the installation of underfloor heating and sensors are kept low if both are laid simultaneously.

In the case of a method according to the invention, it can preferably be provided that, during monitoring of the first detection area, the first detection area and / or during monitoring of the second detection area, the second detection area is passively screened. The passive shielding can be realized by a shield electrode, which is preferably arranged at least partially circumferentially around an electrode of the first and / or second sensor element. As a result, the first and / or second detection range can be defined and / or limited to the outside. In particular, an accuracy of the monitoring of the event can thereby be improved and a sensitivity of the surface sensor system can be reduced compared to external influences which may be detrimental to the measurement result. The shielding electrode can thus be used to shield the electric field to the outside and to propagate at least substantially within the boundary of the shielding electrode and / or at least to be substantially protected from external influences by the boundary of the shielding electrode. Preferably, the shield electrode may be formed at one edge of the first and / or second detection region and / or around several, preferably by four, sensor elements at least substantially, in particular completely, circumferentially. As a result, an advantageous shielding of the detection means and / or each of the detection areas can be realized.

In the context of the invention may also be provided that the evaluation of the

Event a decentralized pre-evaluation in space, in particular by a decentralized evaluation includes. The decentralized preliminary evaluation can be arranged in particular in the vicinity of the respective sensor elements. Preferably, a decentralized

Evaluation unit per four sensor elements provided. This allows the decentralized

Evaluation unit advantageously be arranged between the sensor elements and the path of the measurement signal from the respective sensor element to the decentralized evaluation unit are kept short. Thus, the losses in the transmission of the sensor data from the

Sensor elements are kept small to decentralized evaluation and thus the accuracy in monitoring the detection areas are improved. The decentralized preliminary evaluation can, for example, already be an interpretation and / or preparation of the measurement signal, in particular based on further measurement signals of several sensor elements, include. For the decentralized evaluation, the decentralized evaluation unit can preferably comprise a printed circuit board, a processor, in particular a microprocessor, and / or further electronic components.

Preferably, it can be provided in a method according to the invention, that the surface sensor has a plurality of sensor mats connected to each other, wherein a decentralized preliminary evaluation is carried out for each sensor mat. Thus, each sensor mat can be assigned a decentralized evaluation unit in order to carry out the decentralized evaluation for the sensor elements of the respective sensor mat. As a result, the transmission paths for the measurement signal can be kept short over the entire area sensor system. Furthermore, the decentralized preliminary evaluation may comprise a digital-to-analog conversion of the measurement signal or of the measurement signals, so that a transmission path for the digital signals plays a subordinate role for the accuracy of the measurement result. The decentralized conversion of the first analog signal of the first sensor element into the first digital signal can in particular be part of the decentralized preliminary evaluation or can be connected upstream of the decentralized preliminary evaluation.

In accordance with a further aspect of the invention, an area sensor system, in particular a floor sensor system, is claimed. In this case, a control unit of the surface sensor is designed to perform a method according to the invention. Thus, a surface sensor according to the invention brings the same advantages as have already been described in detail with reference to a method according to the invention.

Further, measures improving the invention will become apparent from the following description of some embodiments of the invention, which are shown schematically in the figures. All of the claims, the description or the drawings resulting features and / or advantages, including design details, spatial arrangements and method steps may be essential to the invention both in itself and in various combinations. It should be noted that the figures have only descriptive character and are not intended to limit the invention in any way. Show it: 1 shows a schematic structure of a sensor mat for a surface sensor according to a first embodiment in a schematic sectional view,

FIG. 2 is a plan view of a first base side of a base unit of the sensor mat of the first embodiment;

FIG. 3 shows a schematic illustration of a detection means of the sensor mat of the first exemplary embodiment,

Figure 4 shows a possible detection of an event in chronological order with the

Sensor mat of the first embodiment,

FIG. 5 shows the sensor mat of the first exemplary embodiment in a further schematic sectional partial view,

FIG. 6 is another sectional schematic view of the sensor mat of the first

Embodiment in the edge region,

7 shows a possible bending of the sensor mat of the first embodiment in a schematic view,

FIG. 8 shows the surface sensor system according to the invention with a sensor mat according to a further exemplary embodiment,

FIG. 9 shows a room of a building with an area sensor system according to the invention in a further exemplary embodiment,

FIG. 10 shows a schematic representation of method steps of a method according to the invention for detecting an event in a room, 11 is a schematic representation of a surface sensor for carrying out a method according to the invention in a further exemplary embodiment, FIG.

FIG. 12 shows a schematic structure of a sensor mat according to the invention according to a further exemplary embodiment in a schematic sectional view,

FIG. 13 shows a top view of a heating means of the sensor mat according to the invention according to FIG. 12,

FIG. 14 a schematic representation of a detection means of the sensor mat according to the invention according to FIG. 12,

FIG. 15 the sensor mat according to the invention according to FIG. 12 in a further schematic sectional view,

16a-c, the sensor mat according to the invention according to FIG 12 with a

connecting unit

Figure 17 is a schematic representation of a surface sensor for carrying out a method according to the invention in a further embodiment.

In the following figures, the identical reference numerals are used for the same technical features of different embodiments.

Figures 1 to 9 and 12 to 16 show one or more sensor mats 4 in a schematic structure and with a schematic mode of operation. The respective sensor mats 4 are advantageously suitable for use in a method 500 according to the invention and / or with an area sensor 1.2 according to the invention.

Figure 1 shows a schematic structure of a sensor mat 4 with a detailed view of a base unit 10 of the sensor mat 4 in a first embodiment. The base unit 10 forms in particular a core of the sensor mat 4. The base unit 10 comprises a first carrier element 1 1, which has a flat extension with a first and a second base page 11.1, 1 1.2. Thus, the first support member 11 for laying the sensor mat 4, for example, as part of a delimiting element 1 10 of the room 101, in particular a floor of a building 100 suitable. The first base side 11.1 preferably forms an underside of the first carrier element 11 when the sensor mat 4 is installed in the building 100 as underfloor heating. In this case, the second base side 11.2 preferably forms the upper side of the first carrier element 1, respectively. On the first base side 1.1, an electrical heating means 20 is provided for the release of heat. The electrical heating means 20 has a resistance element 21, which extends on the first base side 1 1.1 of the first support member 11 and preferably flat, in particular plate-like, is configured. Furthermore, the electrical heating means 20 has a heating element 23, by means of which the resistance element 21 is connected to an electrical connection 40 of the sensor mat 4. The heating element 23 and / or the resistance element 21 can be printed on the first carrier element 1 1. In this case, the heat-conducting element 23 is preferably printed directly onto the first carrier element 11 and the resistance element 21 at least in regions on the heat-conducting element 23 and / or at least partially on the first carrier element 11. Thus, the resistance element 21, which may preferably be configured plate-like, extend over the Heizleitelement 23. In this case, the Heizleitelement 23 may be provided, for example, as a narrow strip, so that the resistance element 21 is partly applied directly to the Heizleitelement 23 and is applied partially on the first support member 1 1 directly. In particular, the Heizleitelement 23 and the resistance element 21 are materially connected to the first support member 1 1 and / or with each other. In order to keep the electrical resistance of the Heizleitelementes 23 low, the Heizleitelement 23 in particular a noble metal, preferably silver, on. The resistance element 21 is designed to give off heat when it is energized. In particular, the resistance element 21 has a carbon paste, which has carbon 21.1 and / or a filler 21.2. The carbon 21.1 may preferably be in ground form. The filler 21.2 also serves to adjust the conductivity of the resistive element 21, wherein the conductivity of the resistive element 21 corresponds to the quantity addition of the filler 21.2 of the carbon paste. For electrical insulation to the outside of the base unit 10, a first protective layer 14.1 is further provided, which the electrical heating means 20 at least partially covered. In particular, the first protective layer 14.1 may comprise a lacquer, preferably a photoresist. Preferably, the base unit 10 and / or the sensor mat 4 can be designed plate-shaped. In particular, the sensor mat 4 can advantageously have a base area of less than 2 m × 2 m, preferably less than 1, 5 m × 1, 5 m, particularly preferably less than 1, 1 m × 0.8 m.

On the second base side 1.2 of the first carrier element 11, the base unit 10 has a capacitive detection means 30 for detecting an event 3. In this case, the detection means 30 comprises a data line 35, which is applied in particular directly to the first carrier element 11. The data line 35 can serve for the power supply and / or data communication of the detection means 30. For this purpose, the data line 35 may preferably comprise a plurality of, in particular parallel, data conductors, through which e.g. a data BUS can be provided. Furthermore, the detection means 30 comprises a two electrodes 31, between which an electric field can be generated. In particular, the two electrodes 31 may be connected in regions to the data line 35. For electrical insulation, in particular further regions, a further protective layer 14.3 can also be provided between the electrodes 31 and the data line 35. As a result, it can be ensured that the electrodes 31 and the data line 35 contact one another only in some contact sections, and thus that the electric field is not or only slightly influenced by the data line 35. For the electrical insulation of the detection means 30 with respect to the environment, a second protective layer 14.2 is further provided, which at least partially covers the detection means 30. Preferably, the detection means 30 may be indirectly or directly applied to the second base side 1 1.2 of the first support member 11. In particular, the electrodes 31 and / or the data line 35 can be connected in a material-bonded manner to the first carrier element 11 by a printing process. The second protective layer 14.2 and the further protective layer 14.3 may in particular be painted and / or applied by a printing process, preferably as a photoresist.

Due to the described construction of the base unit 10, this is flexible, so that the handling of the sensor mat 4 may differ from the handling of a rigid plate. This is particularly favorable when handling on a construction site, as For example, a person can carry the sensor mat 4, the sensor mat 4 can be delivered in a stack with other sensor mats 4 and / or a risk of breakage of the sensor mat 4 can be reduced. In particular, the base unit 10 forms a film-like, preferably moisture-impermeable composite. Furthermore, in order to further protect the base unit 10 from moisture, a sealing layer 60 is additionally arranged on the base unit 10, in particular indirectly on the second base side 1 1.2 of the first carrier element 11. For this, an adhesive layer 70 is interposed between the base unit 10 and the sealant layer 60 to fix the sealant layer 60 on the base unit 10. Furthermore, the sealing layer 60 has a plurality of fiber layers 60.1, so that a tightness of the sealing layer 60 can be increased by the plurality of fiber layers 60.1. In particular, the sealing layer 60 may comprise a nonwoven. On the first base side 11.1 of the first carrier element 1 1, a sound-damping layer 50 is further attached to the base unit 10. For this purpose, an adhesive layer 70 is likewise provided between the sound-damping layer 50 and the base unit 10 in order to ensure a cohesive connection of the base unit 10 and the sound-damping layer 50. The sound-damping layer 50 has a positive effect on the sound transmission, in particular when using the sensor mat 4 as floor heating, so that a footfall sound is reduced. Due to the design of the base unit 10 with the detection means 30 in a layer-like composite, the base unit 10 can be laid flat to design a surface sensor 1.2 according to the invention. By means of the electrical heating means 20, the base unit 10 can be laid flat to design a surface heating 1.1. In particular, a dual functionality of the sensor mat 4 is thus given, so that when laying the sensor mat 4 on the one hand, the surface heating 1.1 can be configured and on the other hand, the surface sensor 1.2. Thus, in particular only a mounting of the sensor mat 4 is necessary in order to realize on the one hand a sensor functionality and on the other hand a heating functionality within a room 101 of the building 100. In particular, the representation of FIG. 1 only schematically includes a region of the sensor mat 4 in a sectional view, wherein the layer structure can, for example, depict a printing order during the production of the sensor mat 4. In particular, at least the sound-damping layer 50 and / or the sealing layer 60 and / or the protective layers 14.1, 14.2, 14.3 can extend over the entire area of the sensor mat 4 over the entire area or in sections FIG. 2 shows a schematic plan view of the base unit 10 of the sensor mat 4 of the first exemplary embodiment on the first base side 11.1 of the first carrier element 1 1. It is shown that the sensor mat 4 has a plurality of planar, in particular plate-like, resistive elements 21 in a regular distribution pattern. The resistance elements 21 are connected via Heizleitelemente 23 with at least one extending in an edge region 12 of the base unit 10 conductor 42, preferably a plurality of interconnects 42, respectively. Through the conductor 42 while the resistance elements 21 are connected to heating terminals 45, which may be part of electrical connections 40, which are arranged in the edge region 12 of the base unit 10. The resistance elements 21 are located in a central region 13 of the base unit 10. The conductor track 42 is furthermore provided peripherally in the edge region 12. Thereby, the sensor mat 4 can be easily adapted to a specific geometry of a room, such as a bay, by cutting off a partial area of the base unit 10. Characterized in that a plurality of electrical connections 40 are provided and the conductor 42 is formed circumferentially, thus at least a part of the functionality of the electric heating means 20 can be obtained when individual resistance elements 21 and / or individual electrical connections 40 are cut off. For at least parts of the remaining resistance elements 21, at least one electrical connection 40 and the corresponding contacting via the conductor track 42 are preferably retained. Thus, in particular desired cutting lines 15 are provided, along which a cutting of the sensor mat 4 for adaptation to the geometry of the space 101 is possible. The desired cutting lines 15 are pre-drawn or pre-perforated and / or result from the arrangement of the resistance elements 21 and / or of sensor elements 30.1, which are shown in Fig. 3. Preferably, the sensor mat 4 is designed as a heating module to be connected to other heating modules for surface heating 1.1 and / or to the surface sensor 1.2. To provide a simple way of electrical connection, the electrical connections 40 have connection interfaces 41 and / or mating connection interfaces 43. In particular, the connection interfaces 41 can be connectable to mating connection interfaces 43 of further sensor mats. For this purpose, each connection interface 41 may have at least one, preferably a plurality, connection means 90 and each mating connection interface 43, preferably a plurality of mating connection means 93. Preferably, the connection interface 41 and / or the mating interface 43 may be formed for reversible mechanical attachment. In particular, thus, the connecting means may be formed as a push button and / or the mating connection means 93 as eyelet. As a result, an electrical connection of the sensor mat 4 with a power source 2 and / or a control unit 22 can be connected quickly and reliably.

In particular, each resistance element 21 of the electric heating element 20 is assigned a sensor element 30.1, 30.2, 30.3. The cutting capability of the sensor mat 4 can thereby be further simplified, so that a cut correspondingly removes the same number of sensor elements 30.1, 30.2, 30.3 as resistance elements 21. The detection means 30 is shown schematically in a plan view of the second base side 1.2 of the first carrier element 11 shown in FIG. The detection means 30 advantageously has a first sensor element 30.1, a second sensor element 30.2 and further sensor elements 30.3, which in each case have two electrodes 31 in order to be able to generate an electric field 31.1, 31.2. Each sensor element 30.1, 30.2, 30.3 is connected to a decentralized evaluation unit 32. The decentralized evaluation unit 32 is further arranged in the vicinity of the respective sensor elements 30.1, 30.2, 30.3, so that a connection path between the sensor elements 30.1, 30.2, 30.3 and the respective evaluation unit 32 can be kept small. In particular, the decentralized evaluation unit 32 is designed to convert analog measurement signals of the sensor elements 30.1, 30.2, 30.3 into digital signals. Furthermore, the decentralized evaluation units 32 are connected to a data line 35. The data line 35 also has a supply section 35.2 and a ring section 35.1. The ring section 35.1 is in this case arranged, in particular, at least partially parallel to the conductor track 42, circumferentially in the edge region 12 of the base unit 10. The supply section 35.2 is arranged in particular parallel to the heating element 23, at least partially in the center region 13 of the base unit 10. Thus, the evaluation units 32 can be connected via the supply section 35.2 with the ring section 35.1. Preferably, each supply section 35.2 can contact the ring section 35.1 multiple times. Thus, there is also an advantageous ability to cut the sensor mat 4 so that the functionality of remaining sensor elements 30.1, 30.2, 30.3 can be maintained, for example, even when an upper area of the sensor mat 4 is cut off. The ring section For this purpose, 35.1 is furthermore connected to a plurality of data connections 36, which may be part of the electrical connections 40 for the electrical heating means 20 or may form separate electrical connections 40. In particular, the data line 35 can have a plurality of data lines which run in parallel, in order, for example, to be able to transmit different data and / or to provide a bus. Furthermore, detection areas 34.1, 34.2, 34.3 of the detection means 30 of the sensor mat 4 are shown in dashed lines, which can be monitored by the sensor elements 30.1, 30.2, 30.3.

FIG. 4 schematically shows a plurality of detection regions 34.1, 34.2, 34.3, which in each case can be generated by the sensor elements 30.1, 30.2, 30.3. For example, in order to be able to detect a behavior of a person or a presence of a person as an event 3, it may be provided to individually monitor the detection areas 34.1, 34.2, 34.3 and to evaluate them in particular at different times T1 to T5. Thus, for example, an event 3 can be tracked in the form of a movement of a person, so that the use of the surface sensor 1.2 of the sensor mat 4 is particularly suitable for commercial applications such that visitor flows can be analyzed in their behavior. As a result, for example, a knowledge can be obtained as to whether a product is of particular interest to visitors or the like.

FIG. 5 also shows a possible connection of the decentralized evaluation unit 32 to the sensor elements 30.1, 30.2, 30.3 of the detection means 30. In particular, the decentralized evaluation unit 32 can be provided on the first base side 11.1 of the first carrier element 11, to which also the electrical heating means 20 is arranged. A connection of the sensor elements 30.1 with the decentralized evaluation unit 32 through the first support element 1 1 can be ensured in a particularly simple form by a respective passage element 37, which can be configured in particular as a rivet. This can further favor the mass production of the sensor mat 4. At the same time, attachment of the decentralized evaluation unit 32 to the base unit 10 can take place. In particular, furthermore, the evaluation unit 32 may advantageously be embedded in the sound-damping layer 50, which may be particularly flexible and thus provides elastic protection Loading the sensor mat 4, for example, by the movement of a person can provide.

FIG. 6 further shows a marginal region 12 of the sensor mat 4 of the first exemplary embodiment in a schematic representation. In this case, the base unit 10 is shown with one of the electrical connections 40. Furthermore, a part of the adhesive layers 70 is arranged in the edge region. At least one of the adhesive layers 70 has a first adhesive region 71.1 as a fastening interface 44 for connecting the sensor mat 4 to further sensor mats and / or further components of the surface heating 1.1. Furthermore, a second adhesive region 71.2 is provided, by which the base unit 10 is connected to the sealing layer 60 and / or the sound-damping layer 50. Thus, several functions can be fulfilled by the respective adhesive layer in a simple manner.

FIG. 7 shows the sensor mat 4 according to the invention of the first exemplary embodiment with a possible bend. In this case, the sensor mat 4 is bendable by a bending angle A. This is possible in particular because the base unit 10 is designed to be flexible. Preferably, the achievable bending angle A can be greater than or equal to 10 °, preferably greater than or equal to 45 °, particularly preferably greater than or equal to 90 °. The achievable bending angle can relate in particular to a horizontal, if the sensor mat 4 at least partially, for example. on a floor, rests. In this case, however, a bending radius R can also be provided, which illustrates that the bending angle A is to be distinguished from a kink. In particular, furthermore, the decentralized evaluation units 32 may be rigid, so that a bending between the decentralized evaluation units 32 is possible.

FIG. 8 also shows a connection of a plurality of sensor mats 4. The sensor mats 4 form a surface heater 1.1 and a surface sensor 1.2 according to the invention in accordance with a further exemplary embodiment. The sensor mats 4 are interconnected by electrical connections 40, through each of which an electrical connection 40.1 can be made. The electrical connection 40.1 can provide a power supply and / or a data connection. One of the sensor mats 4 is preferably formed as a master element 4.1, which directly to the control unit 22 in Communication connection can stand. In particular, the master element 4.1 may have a temperature sensor 24 for calibrating and / or adjusting the surface heating 1.1. Furthermore, it is shown that the sensor mats 4 overlap in their edge regions 12. In particular, the edge regions 12 can each have first adhesive regions 71.1, which can form a fastening interface 44. By the attachment interfaces 44, the sensor mats 4.1, 4.2 in particular fastened to each other. The control unit 22, which is in communication with the master element 4.1, can furthermore have a central control unit 33, by means of which preferably a heat output of the sensor mats 4 and a detection of events 3 of the sensor mats 4 can be controllable or evaluable. Preferably, the central control unit 33 may be provided in a flush-mounted box of a room 101 of a building 100.

FIG. 9 further shows a building 100 with a space 101 which can be heated by a surface heating 1.1 and can be monitored at least in regions by an area sensor 1.2 according to the invention in accordance with a further exemplary embodiment. The monitoring of the room 101 may include a detection of an event 3, wherein the event 3 may preferably include an activity of a person. In particular, the activity of the person may be a stay of the person. In particular, the surface sensor system 1.2 can also be designed for the capacitive detection of the event 3. The surface heating 1.1 and the surface sensor 1.2 are formed by sensor mats 4 according to the invention, preferably by a combination of a plurality of sensor mats 4 according to the first embodiment. For this purpose, the sensor mats 4 are arranged on a component 102 of a delimiting element 110 of the space 101. The component 102 may preferably be a floor pipe component. On the sensor mats 4 is further a functional coating 103, which may preferably be a screed, as well as a visible covering 104, which may comprise, for example, tiles and / or carpet and / or laminate and / or the like arranged. As a result, the surface sensor is firmly installed with limiting element 110. The surface sensor 1.2 and / or the surface heating 1.1 can be connected to an external computing unit 80 and / or a mobile terminal 81 and / or connectable. As a result, for example, a remote control of the surface heating 1.1 and / or remote monitoring of the surface sensor 1.2 by a user outside the building 100 and / or in another room of the building 100 are performed. Preferably, detection areas 34.1, 34.2, 34.3 be provided for detecting the event, which starting from sensor elements 30.1, 30.2, 30.3 of the sensor mats 4 have a height H of greater than or equal to 10 mm, preferably greater than or equal to 25mm, more preferably greater than or equal to 40 mm.

FIG. 10 shows a method 500 according to a further exemplary embodiment for detecting an event 3 in a room 101 of a building 100 in a schematic representation of method steps 501 to 507. The steps of the method are carried out by a surface sensor 1.2 permanently installed in a delimiting element of the room. In order to adapt the surface sensor 1.2 to the ambient conditions of the room 101, a calibration 501 of a first sensor element 30.1 of the surface sensor 1.2 is preferably initially provided, wherein actual sensor data are determined and compared with reference sensor data or stored as reference sensor data. In this case, an automatic recognition 501.1 of a functional coating 103 and / or a visible covering 104 is provided, wherein the functional coating 103 and / or the visible coating 104 at least partially covers the first and / or second sensor element 30.1, 30.2. For this purpose, the first sensor element 30.1 preferably has a first detection area

34.1 and the second sensor element 30.2 have a second detection area 34.2, wherein the detection areas 34.1, 34.2 preferably have a height of greater than or equal to 10 mm, greater than or equal to 25 mm or particularly preferably greater than or equal to 40 mm. Additionally or alternatively to the automatic detection 501.1, a manual adjustment 501.2 of the functional covering 103 and / or the visible covering 104 may be provided. In particular, an automatic recognition 501.1 can be corrected by the manual setting 501.2 if there is an error detection. After the calibration 501, the surface sensor 1.2 can thus be adapted to the conditions of the space 101, so that even under special conditions monitoring 502 of the first detection area 34.1 of the first sensor element 30.1 can be performed. For this purpose, in particular a generating 502.1 of a first electric field 31.1 is performed in the first detection area 34.1. For this purpose, for example, the first sensor element

30.1 have two electrodes 31 which can generate the first electric field 31.1. In particular, the first electric field 31.1 can be generated continuously. Capacitive detection can thus be made possible by the first electric field 31.1, with detection 502.2 of a first characteristic of the first electric field 31.1 in FIG the first detection area 34.1 takes place, for example, to detect a change of the first electric field 31.1. Preferably, the first parameter may include a permittivity, in particular a change of a permittivity, in the first detection range 34.1. Thereupon, a generation 503 of a first measurement signal 503.1 of the first sensor element 30.1 in dependence on the event 3 can be carried out. The first measurement signal 503.1 can thus reflect a change in the first electric field 31.1, which was generated, for example, due to a presence or movement of a person. Analogous to the monitoring 502 of the first detection area 34.1, a monitoring 504 can be performed by a second sensor element 30.2, whereby a monitoring area 34.2 also takes place for the second sensor element 30.2 by generating 504.1 a second electric field 31.2 and detecting 504.2 a second characteristic of the second electric field 31.2 can. In particular, a generation 505 of a second measurement signal 505.1 can also be carried out in accordance with the monitoring 504 of the second detection range 34.2. Preferably, the first and / or second measurement signal 503.1, 505.1 may comprise a measurement data sequence, wherein, for example, each of the measurement signals 503.1, 505.1 may have at least two partial signals 503.2, 505.2, which map the respective detection area 34.1, 34.2 at different times T1, T2. As a result, a chronological sequence of the event 3 can also be imaged by the measurement signals 503.1, 505.1. Further, in the measurement signals

503.1, 505.1 preferably decentralized as digital signals generated from an analog signal. For this evaluation unit 32 in the vicinity of the respective sensor elements

30.1, 30.2 be provided. An evaluation 506 of the event can preferably be carried out by a control unit 22 and the first and / or the second measurement signal

Process 503.1, 505.1. In this case, the first and second measurement signals 503.1, 505.1 can be compared, for example in a comparison 506.1, and / or an assignment 506.2 of the event to one of the detection regions 34.1, 34.2 can take place, for example by the measurement signals 503.1, 505.1 being adjusted. From this it can finally follow that one of the measurement signals 503.1, 505.1 maps the activity. In order to provide the user with the monitoring data from the measurement signals 503.1, 505.1, a transmission 507 to an external computing unit 80 and / or a mobile terminal 81 can also take place. In particular, the method can be carried out using at least one sensor mat 4 according to one of the preceding exemplary embodiments, particularly preferably according to the first exemplary embodiment. 11 shows a structure of a surface sensor 1.2 according to the invention of a further exemplary embodiment in a schematic view, wherein a first sensor element 30.1 and a second sensor element 30.2 are provided in order to form the detection regions 34.1, 34.2. For this purpose, each of the sensor elements 30.1, 30.2 has two electrodes 31, which can generate a first or a second electric field 31.1, 31.2. Preferably, the surface sensor 1.2 can have further sensor elements 30.3 with further detection areas (not shown in FIG. 11). Via a decentralized evaluation unit 32, which is arranged in the vicinity of the sensor elements 30.1, 30.2 respectively to, then the signals from the respective electric field 31.1, 31.2 of the electrodes 31 decentralized convert into digital measurement signals and provide a control unit 22 available. After the further processing by the control unit 22, the monitoring data can further be made available to an external computing unit 80 and / or a mobile terminal 81. In particular, the surface sensor 1.2 may have one or more sensor mats 4 according to one of the preceding embodiments, particularly preferably according to the first embodiment.

FIG. 12 shows a schematic structure of a sensor mat 4 according to the invention with a detailed view of a base unit 10 of the sensor mat 4. The base unit 10 forms in particular a core of the sensor mat 4 with a square base area. The base unit 10 comprises a first and a second carrier element 11, which each have a planar extension with a first and a second base side 11.1, 1 1.2. Preferably, at least one sealing layer 60 is arranged on the base unit 10, in particular fixed by an adhesive layer 70. In this case, the sealing layer 60 with the adhesive layer 70 can be arranged on the first and / or second carrier element 11. Additionally or alternatively, a sound damping layer 50, as shown in the first embodiment, be arranged on the base unit 10. Thus, the first and second support element 1 1 for laying the sensor mat 4, for example, as part of a delimiting element 110 of the room 101, in particular a floor of a building 100 suitable. In this case, reference is made in particular to the illustration in FIG. 9. The first base side 11.1 of the second carrier element 11 preferably forms an upper side of the second carrier element 11 when the sensor mat 4 is installed in the building 100 as underfloor heating. In this case, the second basic page forms accordingly 1 1.2 of the second support member, the underside of the second support member 11 and / or the base unit 10. On the first base side 11.1 of the second support member 11, an electric heating means 20 is provided for the release of heat. The first base side 11.1 of the first carrier element 11 preferably forms an upper side of the first carrier element 11 and / or of the base unit 10 when the sensor mat 4 is installed in the building 100 as underfloor heating. In this case, the second base side 11.2 preferably forms the underside of the first carrier element 1 1. Accordingly, the second base side 1.1 of the first carrier element 11 and the first base side 1.2 of the second carrier element 11 are facing one another. On the second base side 11.2 of the first carrier element 1 1, a detection means 30 for detecting an event 3 is provided. The heating means 20 and the detection means 30 are thus arranged between the first and second support member 1 1 and thus at least partially protected. Between the first and second support member 1 1, an intermediate element 16 is further arranged, which is preferably formed as a sound-damping layer 50. Thus, a spatial distance and / or an electrical insulation between the first and second carrier element 11 is ensured by the intermediate element 16. At the same time a footfall sound can be reduced by the intermediate element 16.

13 shows a plan view of the second carrier element 11 of the base unit 10 with the electrical heating means 20. The electric heating means 20 has at least one resistance element 21 which extends on the first base side 11.1 of the second carrier element 11 and preferably flat, in particular plate-like, is designed. Furthermore, the electrical heating means 20 has at least two conductor tracks 42, through which the resistance element 21 is connected to an electrical terminal 40 of the sensor mat 4. The conductor tracks 42 and / or the resistance element 21 may be printed on the second carrier element 1 1. Preferably, firstly the printed conductors 42 are printed directly on the second carrier element 11 and the resistance element 21 at least in regions on the heating elements 23 connected to the printed conductors 42 and / or at least partially printed on the second carrier element 11. In particular, the conductor tracks 42, the Heizleitelemente 23 and the resistance element 21 are materially connected to the second support member 1 1 and / or with each other. In order to keep the electrical resistance of the Heizleitelemente 23 and the traces 42 low, the Heizleitelemente 23 and the tracks 42 in particular a precious metal, preferably silver. The resistance element 21 is designed to give off heat when it is energized. In particular, the resistance element 21 has a carbon paste, which has carbon 21.1 and / or a filler 21.2. For electrical insulation of the heating means 20 may further, as in the first embodiment, a first protective layer 14.1 may be provided which covers the electrical heating means 20 at least partially. In particular, the heating means 20 has a plurality of resistive elements 21 in a regular pattern. One of the conductor tracks 42 is designed as a cross-shaped peripheral connection portion 25. As a result, electrical connections 40, which are arranged in an edge region 12 of the base unit 10, can also be used for supplying energy to one of the resistance elements 21 when the sensor mat 4 is cut to adapt to a geometry of the space 101. One of the strip conductors 42 furthermore has a section extending circumferentially in an edge region 12 of the base unit 10, by means of which the cutability of the sensor mat 4 is improved.

The detection means 30 may preferably be designed for the capacitive detection of the event 3. The base unit 10 in this case comprises at least one data line 35, which is applied in particular directly to the first and / or second carrier element 1 1. According to FIG. 13, the data line 35 comprises connection sections 25 which extend like a cross from a decentralized evaluation unit 32 arranged centrally on the base unit 10 to the electrical connections 40. The data line 35 can serve for the power supply and / or data communication of the detection means 30. For this purpose, the data line 35 may preferably comprise a plurality of, in particular parallel, data conductors, through which, for example, a data BUS can be provided. FIG. 14 shows a plan view of the second carrier element 11 of the base unit 10 with the detection means 30. Furthermore, the detection means 30 comprises two electrodes 31, by means of which an electric field can be jointly generated. One of the electrodes 31 is formed as a screen electrode for limiting the electric field and in the edge region 12 of the base unit 10 circumferentially. For the electrical insulation of the detection means 30 with respect to the environment, a second protective layer 14.2, as shown in the exemplary embodiment according to FIG. 1, can furthermore be provided, wherein the second protective layer 14.2 preferably at least in some areas the detection means 30 covered. The detection means 30 is applied directly or indirectly to the second base side 11.2 of the first carrier element 1 1. Furthermore, the electrodes 31 and / or the data line 35 can be connected in a material-bonded manner to the first carrier element 11 by a printing process. The detection means 30 has for the detection of the event 3 four sensor elements 30.1, which are each formed by an electrode 31 and the circumferential electrode 31 in the form of the shield electrode. As a result, in particular four detection areas 34 are provided for the detection of the event 3.

The decentralized evaluation unit 32 is connected to each of the sensor elements 30. 1 of the sensor mat 4. The decentralized evaluation unit 32 is further arranged by the central arrangement in the vicinity of the respective sensor elements 30.1, so that a connecting distance between the sensor elements 30.1 and the respective evaluation unit 32 can be kept small. In particular, the decentralized evaluation unit 32 is designed to convert analog measurement signals of the sensor elements 30.1 into digital signals. Furthermore, a pre-evaluation of the measurement signals by the decentralized evaluation unit 32 can be performed. FIG. 15 further shows the arrangement of the decentralized evaluation unit 32 in the base unit 10 in a sectional view. The decentralized evaluation unit 32 extends at least partially into a receiving opening of the intermediate element 16. As a result, the decentralized evaluation unit 32 also enables an electrical connection between components of the first and second carrier element 11. In particular, the connection sections 25 of the data line 35 can thereby be connected to the detection means 30 via the decentralized evaluation unit 32.

As shown in FIG. 16 a, the electrical connections 40 each have a connection interface 41 for connecting the electrical heating means 20 and the detection means 30 to a connection unit 96. An electrical connection of the connection interface 41 to a mating connection interface 43 can be ensured by the connection unit 96, so that at least indirectly a connection of the sensor mat 4 to an energy source 2 and / or a control unit 22 is possible via the electrical connection 40. In particular, the sensor mat 4 for connection to the energy source 2 and / or the control unit 22 may be connected to a further sensor mat 4 and / or a network of further sensor mats 4. Accordingly, the mating connection interface 43 may be part of the other Sensor mat 4 be. Unnecessary electrical connections 40 may preferably be closable by a dummy piece 96.1. The connection unit 96 further has a flat connection body 97, as shown in FIG. 16b, and a flat fastening body 98, as shown in FIG. 16c. For the electrical connection of the connection interface 41 and the mating connection interface 43, the connection body 97 can be arranged in a recess 46 of the base unit 10 of the sensor mat 4. In this case, the connecting body 97 has a first and a second contact portion 97.1, 97.2, which are electrically connected to each other. In order to ensure a separate contacting of the detection means 30 and the heating means 20, the first and second contact portions 97.1, 97.2 each have at least a first contact element 97.3 and a second contact element 97.4, wherein the first contact elements 97.3 and second contact elements 97.4 are each connected separately , The connection interface 41 furthermore has two connection means 90 in the form of electrical contacts on the first base side 11. 1 of the second carrier element 11. The mating connection interface 43 has two counter-connecting means 93 of analog design in the form of electrical contacts. Thus, through the connection unit 96, two similar interfaces 41, 43 can be connected in a simple way to the construction site. In order to simplify the attachment of the connection unit 96, the fastening body 98 is further provided. This can be arranged on a side opposite the connecting body 97 side of the second support member 11. Furthermore, the fastening body 98 comprises magnets 99, which can be brought into operative connection with the contact elements 97.3. In particular, the contact elements 97.3 are magnetizable. Thus, when the fixing body 98 and the connecting body 97 are arranged such that the second support member 11 is disposed between the fixing body 98 and the connecting body 97, the second support member 11 is clamped by the connecting unit 96. At the same time, the magnets 99 cause a magnetic force on the contact elements 97.3, so that the contact elements 97.3 are pressed against the connection means 90 and the counter-connection means 93, respectively. This results in a force-locking attachment of the connecting unit 96 to the sensor mat 4 and on the other a reliable contact. For a positive connection and a correct positioning of the connecting unit 96, the fastening body 98 further comprises at least one positioning aid 98.1 in the form of projections, the connecting body 97 at least one Gegenpositionierhilfe 97.5 and Verbindungsschnitstelle 41 at least one alignment 41.1. When fastening the connection unit 96 to the connection interface, the positioning aid 98.1 acts with the counterpositioning aid 97.5 and the alignment member 41.1, so that a form-locking connection is produced. Furthermore, mispositioning of the connection unit 96 is prevented by the clever arrangement and design of the positioning aid 98.2, the counter positioning aid 97.5 and the alignment means 41.1.

17 shows a structure of a surface sensor 1.2 according to the invention of a further exemplary embodiment in a schematic view, wherein a first sensor element 30.1 and a second sensor element 30.2 are provided in order to form the detection regions 34.1, 34.2. Each of the sensor elements 30.1, 30.2 has for this purpose two electrodes 31, wherein one of the electrodes 31 is designed as a shielding electrode which surrounds the other electrode 31. As a result, a first and second electric field 31.1, 31.2 generated by the sensor elements are shielded, so that the electric fields 31.1, 31.2 extend substantially perpendicular to the planar extension of the electrodes 31. Preferably, the surface sensor 1.2 can have further sensor elements 30.3 with further detection regions (not shown in FIG. 17). Preferably, a permittivity, in particular a change in the permittivity, can be detected in the detection areas 34.1, 34.2. The signals from the respective electrical field 31.1, 31.2 of the electrodes 31 can then be decentrally converted into digital measuring signals via a decentralized evaluation unit 32, which is arranged in the vicinity of the sensor elements 30.1, 30.2, and can be made available to a control unit 22. Furthermore, a decentralized evaluation 506.3 can be carried out by the decentralized evaluation unit 32 so that the digital measurement signals which are sent to the control unit 22 already have further information about the measurement result, such as a comparison of the measurement signals of the two detection ranges 34.1, 34.2. After the further processing by the control unit 22, the monitoring data can further be made available to an external computing unit 80 and / or a mobile terminal 81. In particular, the surface sensor system 1.2 may have one or more sensor mats 4 according to one of the preceding embodiments. Preferably, a decentralized preliminary evaluation 506.3 is performed separately for each sensor mat 4. The above explanation of the embodiments describes the present invention solely by way of example. Of course, individual features of the embodiments, if technically feasible, can be combined freely with one another, without departing from the scope of the present invention.

References

1.1 surface heating

1.2 area sensor

2 energy source

3 event

4 sensor mat

10 base unit

11 carrier element

11.1 first basic page

11.2 second basic page

12 border area

13 center area

14.1 first protective layer

14.2 second protective layer

14.3 further protective layer

15 nominal cutting line

16 intermediate element

20 electric heating means

21 resistance element

21.1 carbon

21.2 filler

22 control unit

23 heating element

24 temperature sensor

25 connection section

30 detection means

30.1 first sensor element

30.2 second sensor element 30.3 further sensor element

31 electrode

31.1 first electric field

31.2 second electric field

32 decentralized evaluation unit

33 central control unit

34.1 first coverage area

34.2 second coverage area

34.3 further coverage

35 data line

35.1 ring section

35.2 Supply section

36 data connection

37 passage element

40 electrical connection

40.1 electrical connection

41 connection interface

41.1 alignment means

42 trace

43 mating connection interface

44 mounting interface

45 heating connection

46 recess

50 sound-damping layer

60 sealing layer

60.1 fiber layer

70 adhesive layer

71 tape

71.1 first gluing area 71.2 second gluing area

80 external arithmetic unit

81 mobile terminal

90 connecting means

93 counter-linkage

96 connection unit

97 connecting body

97.1 first contact section

97.2 second contact section

97.3 first contact element

97.4 second contact element

97.5 Counter positioning aid

98 fastening body

99 magnet

100 buildings

101 room

102 component

103 functional coating

104 visible covering

110 limiting element

500 methods for detecting an event

A bending angle

R bending radius

T1-Tn times

Claims

Patent claims

A method (500) for detecting an event (3), in particular a presence and / or a movement of a person, in a room (101) of a building (100) by a fixed in a delimiting element (110) of the room (101) built up

Surface sensor (1.2) comprising the following steps:

Monitoring (502) a first detection area (34.1) by a first detection area

Sensor element (30.1) of the surface sensor (1.2), wherein the first

Detection area (34.1) extends at least partially into the space (101),

Generating (503) a first measurement signal (503.1) of the first sensor element (30.1) as a function of the event (3),

- Evaluating (506) of the event (3), wherein at least the first measurement signal (503.1) is processed.

2. Method (500) according to claim 1,

characterized,

the method (500) further comprises the following step:

Monitoring (504) of a second detection area (34.2) by a second sensor element (30.2) of the surface sensor (1.2), wherein the second

Detection area (34.2) extends at least partially into the space (101),

Generating (505) a second measurement signal (505.1) of the second sensor element (30.2) as a function of the event (3),

wherein the second measurement signal (505.1) is taken into account when evaluating (506) the event (3).

3. Method (500) according to one of claims 1 or 2,

characterized,

the first and / or second measuring signal (503.1, 505.1) comprises a first partial signal (503.2, 505.2) at a first time (T1) and a second partial signal (503.1, 505.1) at a second time (T2), so that a temporal Change in the first and / or second detection range (34.1, 34.2) by the first and / or second measurement signal (503.1, 505.1) can be mapped.

4. Method (500) according to one of the preceding claims,

characterized,

that the monitoring (502) of the first detection area (34.1) and / or the monitoring (504) of the second detection area (34.2) takes place capacitively.

5. Method (500) according to one of the preceding claims,

characterized,

in that the monitoring (502) of the first detection area (34.1) comprises the following step:

Detecting (502.2) a first characteristic of a first electric field (31.1) in the first detection region (34.1) of the surface sensor (1.2), and / or that monitoring (504) of the second detection region (34.2) comprises the following step:

Detecting (504.2) a second characteristic of a second electric field (31.2) in the second detection region (34.1) of the surface sensor (1.2).

6. Method (500) according to claim 5,

characterized,

the first and / or second characteristic variable comprises a permittivity, in particular a change of a permittivity, in the first detection region (34.1).

7. Method (500) according to one of the preceding claims,

characterized,

Generating (502.1) of the first electric field (31.1) in the first detection region (34.1) by the first sensor element (30.1) of the surface sensor (1.2), in particular wherein the first electric field (31.1) is generated continuously, and / or monitoring ( 504) of the second detection area (34.2) comprises the following step:

Generating (504.1) the second electric field (31.2) in the second

Detection area by the second sensor element (30.2) of the surface sensor (1.2), in particular wherein the second electric field (31.2) is generated continuously.

8. Method (500) according to one of the preceding claims,

characterized,

in that the first measurement signal (503.1) has a first digital signal and the generation (503) of the first measurement signal (503.1) comprises a decentralized conversion of a first analog signal of the first sensor element (30.1) into the first digital signal.

9. Method (500) according to one of the preceding claims,

characterized,

in that the evaluation (506) of the event (3) comprises at least one of the following steps:

Comparing (506.1) the first and second measurement signals (503.1, 505.1), and / or

- associating (506.2) the event (3) to at least one of the coverage areas (34.1, 34.2).

10. Method (500) according to one of the preceding claims,

characterized,

the surface sensor (1.2) is arranged in a floor of the room (101), wherein the first detection area (34.1) is at least partially above the first sensor element (30.1) and / or the second detection area (34.2) at least partially above the second sensor element (30.2) extends.

1 1. A method (500) according to any one of the preceding claims,

characterized,

the method (500) further comprises the following step:

Sending (507) monitoring data of the event (3) to an external one

Arithmetic unit (80) and / or a mobile terminal (81).

12. Method (500) according to one of the preceding claims,

characterized,

in that, in particular before the monitoring (502, 504) of the first and / or second detection area (34.1, 34.2), the following step is carried out:

Calibrating (501), in particular only, the first sensor element (30.1), wherein actual sensor data are determined and compared with reference sensor data or stored as reference sensor data.

13. Method (500) according to claim 12,

characterized,

in that the calibration (501) comprises at least one of the following steps:

- Automatic recognition (501.1) of a function covering (103) and / or a

Visible covering (104) which covers the first and / or the second sensor element (30.1, 30.2) at least in regions,

Manual adjustment (501.2) of a functional lining (103) and / or a

Visible covering (104) which at least partially covers the first and / or the second sensor element (30.1, 30.2).

14. Method (500) according to one of the preceding claims,

characterized,

that the first and / or the second detection range (34.1, 34.2) starting from the first and / or second sensor element (30.1, 30.2) has a height (H) of greater than or equal to 10 mm, preferably greater than or equal to 25mm, more preferably greater or equal to 40 mm.

15. Method (500) according to one of the preceding claims,

characterized,

that the space (101) during monitoring (502, 504) of the first and / or second detection area (34.1, 34.2) in the first and / or second detection area (34.1, 34.2) by a heating means (20) of the surface sensor (1.2) heated becomes.

16. Method (500) according to one of the preceding claims,

characterized,

that when monitoring (502) of the first detection area (34.1) the first

Detection area (34.1) and / or monitoring (504) of the second

Detection range (34.2) the second detection range (34.2) is shielded passive.

17. Method (500) according to one of the preceding claims,

characterized,

in that the evaluation (506) of the event (3) comprises a decentralized preliminary evaluation (506.3) in the room (101), in particular by a decentralized evaluation unit (32).

18. Method (500) according to one of the preceding claims,

characterized,

in that the area sensor system (1.2) has a plurality of sensor mats (4) connected to one another, wherein a decentralized preliminary evaluation (506.3) is carried out for each sensor mat (4).

19. Area sensor system (1.2), in particular floor sensor system (1.2),

characterized,

in that a control unit (22) of the area sensor system (1.2) is designed to carry out a method (500) according to one of the preceding claims.