Control system for comparing measured pressure and humidity values

Abstract

Control system (1000) for comparing measured pressure and humidity values ​​with pressure and humidity values ​​stored in a database, comprising at least one - Device (100) for measuring pressure and humidity comprising - at least one sensor (1) for measuring pressure and humidity, wherein the sensor (1) - comprising at least one capacitor (20) with at least two electrodes (10, 11) which are arranged in a horizontal direction (H1) along and on a flexible support material (13) relative to each other, wherein at least one dielectric layer (4) is arranged between the electrodes (10, 11), wherein On a side facing away from the support material (13) of at least one electrode (10, 11) and / or the dielectric layer (4), at least partially liquid-permeable and / or liquid-absorbing moisture layer (3) is arranged, wherein the at least one electrode (10, 11) and / or the dielectric layer (4) are thus arranged in a transverse direction (Q1) between the support material (13) and the moisture layer (3), such that the capacitance is at least partially changed by the liquid at least partially affecting the dielectric layer (4), wherein a processing unit (5) is configured and provided for measuring and / or storing measured values ​​of the sensor (1), thus creating a capacitive moisture sensor, wherein the data measured by the sensor (1) are sent by the processing unit (5) to a central CPU (40), and wherein this data is processed by the CPU (40). wherein the central CPU (40) and / or the processing unit (5) compares these data, i.e., the pressure and / or humidity values, with corresponding values ​​stored in a database or sent to the database, and, preferably only if there is a match with these stored values ​​or corresponding value ranges, the central CPU (40) sends an enable signal to a calibration device (6), which then enables a user object (7) for use, based on the individual humidity and pressure values, the central CPU (40) determines at least one respective characteristic value from which it can be derived which individual, according to weight and / or size, is currently occupying the device (100) for measuring pressure and humidity, and / or that, after a vehicle seat has been occupied, a pre-stored seating position, a pre-stored light and / or sound environment, depending on the identified person,a pre-stored music and / or radio station or other personalized services are selected and / or applied, wherein the sensor (1) is additionally a capacitive pressure sensor, wherein the processing unit (5) is additionally configured and provided to measure and / or store a change in capacitance of the capacitor (20) caused by external pressure, and further wherein a capacitive pressure sensor is one in which the change in capacitance due to the deflection of a membrane and the resulting change in the plate spacing is evaluated as a sensor effect, such that the membrane is the dielectric layer (14) or the individual capacitor electrodes (10, 11), characterized in that , the sensor (1) has at least one further capacitor (30) which is arranged in the transverse direction (Q1) above or below the capacitor (20) and is spaced apart from the capacitor (20) by a further water-impermeable layer (15) on or below this further water-impermeable layer (15), so that a capacitor stack is formed, and further wherein both capacitors (20, 30) are constructed in the same way.

Description

[0001] The present invention relates to a control system for comparing measured pressure and / or humidity values, and a method for comparing measured pressure and / or humidity values, comprising the respective preambles of claims 1 and 10. In particular, the control system proposed here can be a system for increasing safety and comfort, especially in the automotive sector, by means of the measured pressure and / or humidity values.

[0002] DE 10 2014 214 978 A1 discloses a method for determining the identity of a person on a seat, comprising providing a seat having several electrodes integrated into the seat and arranged in a surface distribution, placing a person on the seat, whereby signals are generated at several of the electrodes, and the strength of the individual signals depends on the distance of the person's skin surface to the respective electrode, so that a signal pattern M is obtained, determining the person's pose from the signal pattern, comparing the signal pattern with known signal patterns for the determined pose, wherein each of the known signal patterns of a person is assigned to a specific identity, and determining the identity of the person on the seat if the comparison is positive.

[0003] US Patent 2017 / 0 172 813 A1 discloses a sensor arrangement and a method for monitoring a person using a sensor arrangement comprising measuring electronics and a sensor structure that can be mounted on a base. The sensor structure includes at least one sensor, and the arrangement uses the data measured by the measuring electronics and the sensor to determine a change in the moisture content of the surface and the presence of a person on the surface.

[0004] DE 10 2012 106 522 A1 discloses a method for authenticating a driver in a motor vehicle by means of a recognition device arranged in the motor vehicle for collecting actual data of the driver, which during authentication are transmitted to a testing device arranged in an external station outside the motor vehicle, wherein the testing device compares the actual data with the target data and, if the actual data matches the target data, a release signal is sent from the external station to the motor vehicle, thereby enabling the driver to start the motor vehicle.

[0005] US Patent 2016 / 0 148 650 A1 discloses a system that receives indexing data describing multiple frames in a video signal, each frame containing a sequence of images from the video signal. The indexing data further specifies content contained within the multiple frames. A user-defined chapter generator creates user-defined chapter data associated with the video signal based on the indexing data and user-defined chapter parameters to delimit multiple user-defined chapters of the video signal. Other embodiments are disclosed.

[0006] The control system according to the invention for comparing measured pressure and / or humidity values ​​comprises at least one sensor for measuring pressure and / or humidity, wherein the sensor comprises at least one capacitor with at least two electrodes, which are arranged relative to each other, in particular in a horizontal direction, along and on a, in particular flexible, support material, wherein at least one dielectric layer is arranged between the electrodes.

[0007] The horizontal direction is preferably a main extension direction of the flexible support material.

[0008] In this context, "flexible" means that the carrier material is at least partially bendable and therefore elastic.

[0009] In particular, the carrier material can be a woven fabric or another type of clothing fabric, such as polyester.

[0010] The dielectric layer thus separates the two electrodes in a horizontal and / or a transverse direction perpendicular to it.

[0011] According to the invention, on a side facing away from the substrate material, at least one electrode and / or the dielectric layer is arranged, at least partially, with at least one, at least partially, liquid-permeable and / or liquid-absorbing moisture layer, wherein the at least one electrode and / or dielectric layer are thus arranged in a transverse direction between the substrate material and the moisture layer, so that a capacitance is at least partially changed by the liquid that at least partially affects the dielectric layer, wherein a processing unit is set up and provided for measuring and / or storing the sensor readings, so that a capacitive humidity sensor is created.

[0012] A capacitive humidity sensor is essentially a capacitor whose dielectric preferably consists of a hygroscopic polymer layer that absorbs or desorbs moisture depending on the humidity of the ambient air until an equilibrium state (diffusion gradient = 0) is reached. The dielectric constant of the polymer material changes as a function of the moisture content.

[0013] The processing unit's task includes, among other things, determining the relative humidity as accurately as possible, preferably also from a measured ambient temperature and the humidity-dependent capacitance value of the sensor.

[0014] According to the invention, the data measured by the sensor is sent from the processing unit to a central processing unit (CPU), which then processes this data. The CPU and the processing unit are preferably distinct from one another. For example, the CPU and the processing unit are arranged at a distance from each other. In particular, the processing unit and the CPU cannot be arranged on a common support and / or substrate, unless the support is the substrate material, such as a textile.

[0015] It is also conceivable that the device claimed here, and in particular the sensors, are mounted on the inner surface of a tire. It is also conceivable that the sensors are even integrated into the tire material itself. In this case, it is imaginable that all the sensors are embedded in the material and thus encased by the tire material, with the processing units located on the inner surface of the tire. Alternatively, however, the processing units could also be embedded in the tire material. The sensors could then detect the tire's internal pressure, internal temperature, and / or the individual or total mileage of the tire.

[0016] According to at least one embodiment, the measuring system comprises at least one device for measuring pressure and / or humidity, wherein the device has at least one sensor for measuring pressure and / or humidity, wherein the sensor comprises at least one capacitor with at least two electrodes, which are arranged in a horizontal direction along and on a particularly flexible support material relative to each other, wherein at least one dielectric layer is arranged between the electrodes.

[0017] According to the invention, at least one electrode and / or dielectric layer is arranged on a side facing away from the substrate material, at least partially, and at least one liquid-permeable and / or liquid-absorbing layer (= moisture layer), wherein the at least one electrode and / or dielectric layer is thus arranged in the transverse direction between the substrate material and the moisture layer, so that the capacitance is at least partially changed by the liquid that at least partially affects the dielectric layer, wherein a processing unit is set up and provided for measuring and / or storing these sensor readings, so that a capacitive moisture sensor is created.

[0018] According to the invention, the data measured by the sensor is sent by the processing unit to a central CPU (Central Processing Unit), where this data is processed by the processing unit.

[0019] According to the invention, the central CPU and / or the processing unit compares this data, i.e., the pressure and / or humidity values, with values ​​stored in a database or corresponding values ​​sent to the database, and, preferably only if there is a match with these stored values ​​or corresponding value ranges, the central CPU sends a release signal to a comparison device, which then releases a usage object for use.

[0020] In other words, the present invention relates, among other things, to ensuring that only authorized and / or suitable users can use the object of use. The object of use can be a vehicle seat or any other item that needs to be unlocked. It can also be a vehicle.

[0021] In particular, the database may contain, for example, exactly one humidity limit and / or pressure limit, up to which the object of use is activated.

[0022] The database can be stored on the matching device.

[0023] Data communication between the central CPU and / or the processing unit and the synchronization device can be carried out wirelessly, for example via WLAN, Bluetooth or similar.

[0024] According to at least one embodiment, the control system comprises at least one transmitting device which sends predetermined values ​​or ranges of pressure and / or humidity values ​​to the calibration device, and the calibration device compares these received values ​​with the values ​​or ranges of values ​​sent to the calibration device by the central CPU.

[0025] According to at least one embodiment, the transmitting device is a vehicle access system, for example a vehicle key, or at least a part thereof, wherein the transmitting device is configured and intended to communicate with the matching device and / or the central CPU via a wireless connection.

[0026] For example, key recognition can be implemented in this way. Specifically, a key can be assigned to one or more users, preferably exactly one. Each transmitting device, and therefore each key, can correspond to a specific pressure and / or humidity value stored in the database. If the pressure and / or humidity value measured by the device (for example, when a user sits down in a vehicle) does not fall within a standard operating range (a range of pressure and / or humidity values ​​within which use is permitted), then use of the vehicle seat, and especially of the entire vehicle, can be denied. For example, the vehicle's ignition will remain off or the steering wheel locked.

[0027] It is also conceivable that pressure and / or humidity values ​​generated by a user are measured by the device and then fed into the key. The key could contain a memory chip for this purpose.

[0028] If the key is used again, the seat can automatically adjust its shape and seating position to the user before the vehicle seat is occupied.

[0029] It is also conceivable that, after a vehicle seat has been occupied, a pre-stored seating position, a pre-stored light and / or sound ambience, a pre-stored music and / or radio station or other personalized services could be selected and / or applied depending on the identified person.

[0030] According to at least one embodiment, the calibration device is integrated into the vehicle key. Alternatively or additionally, the calibration device can also be integrated into the central CPU and / or the processing unit. Furthermore, it is possible for the central CPU and / or the processing unit to assume the role of the calibration device. In this case, a separate calibration device is not required.

[0031] According to at least one embodiment, the matching device releases a vehicle lock, an immobilizer, a steering wheel lock, and an accelerator and / or brake pedal for use upon a data match. Each of these elements can be a usage element.

[0032] According to at least one embodiment, the central CPU determines at least one characteristic value based on the individual humidity and pressure values, from which it can be derived which individual, according to weight and / or size, is currently occupying the device for measuring pressure and / or humidity.

[0033] According to at least one embodiment, if the measured data does not match the stored data and / or deviates by more than 25% from the stored data values, a face recognition device captures a user's face based on image data and, despite the data deviation, then unlocks the usage element, provided that the face recognition device identifies a user face as identical to a face stored in the face recognition device.

[0034] According to at least one embodiment, the captured image data is compared with the authorization data, which is also stored in the database, wherein this comparison includes a classification comparison of data classes of the image data with data classes of the authorization data, wherein a classification of the image data is carried out on the basis of the user's movement vectors such that first a movement profile is created from the user's movement over time by the face recognition device, wherein the user's movement profile includes the user's movement vectors, and further wherein a user and / or user movements are grouped into so-called data blobs or data clusters, which are then classified in their shape and / or extent.

[0035] The sensor and / or the processing unit and / or the central CPU can be powered by a battery or a mains power supply.

[0036] Alternatively or additionally, it is possible to generate electrical energy to supply the sensor and / or processing unit using so-called "energy harvesting".

[0037] "Energy harvesting" refers to the extraction of small amounts of electrical energy from sources such as ambient temperature, vibrations, or air currents for low-power mobile devices. The structures used for this are also known as nanogenerators. Energy harvesting eliminates the limitations of wired power supplies or batteries in wireless technologies.

[0038] Possibilities of “energy harvesting”: Piezoelectric crystals generate electrical voltages when subjected to force, such as pressure or vibration. These crystals can be arranged on or attached to the substrate. Thermoelectric generators and pyroelectric crystals generate electrical energy from temperature differences. These generators can be attached to or mounted on the substrate. Antennas can capture the energy of radio waves, a form of electromagnetic radiation, and use it for energy generation. Passive RFID tags are an example of this. These antennas can be attached to or embedded in the carrier material. - Photovoltaics, electrical energy from ambient lighting. - Osmosis" (Wikipedia - The Free Encyclopedia: page "Energy Harvesting". Last edited on 8 April 2018. URL: https: / / de.wikipedia.org / wiki / Energy_Harvesting).

[0039] An energy storage device can be part of a processing unit. One or more of the processing units can have such an energy storage device (local energy storage). For example, only one or some of the processing units may have such an energy storage device, so that one of these processing units supplies another processing unit (namely one that does not have an energy storage device) with electrical energy.

[0040] It is also conceivable that the energy storage unit(s) of the processing unit(s) supply the CPU with electrical energy, either wholly or partially. For example, the CPU may not be connected to any other energy storage devices and / or power supply lines.

[0041] At least one of the energy storage devices can be charged via the aforementioned "energy harvesting".

[0042] The energy transfer between the sensors and / or the processing units and / or the CPU can be completely or partially wireless.

[0043] Wireless power transfer in the near field, also known as non-radiative coupling, includes, for example, inductive coupling based on magnetic flux. The terms wireless power transfer and inductive power transfer are often used synonymously because the latter plays a dominant role in practical applications. Wave phenomena are not involved in non-radiative near-field coupling.

[0044] For example, wireless energy transfer between the individual elements occurs via inductive coupling, resonant inductive coupling and / or capacitive coupling.

[0045] According to at least one embodiment, the control system has at least two sensors, wherein the processing unit divides the sensors into groups of at least one sensor based on at least one of the following criteria: - Location of the sensor or sensors on the substrate, wherein the substrate is divided into planar areas, and within - in an area only sensors of one group are arranged, - Surface area of ​​a sensor.

[0046] According to at least one embodiment, the control system comprises at least two devices for measuring pressure and / or humidity, with each processing unit forwarding the data it receives from the sensors to the central CPU. The data connection between the processing unit and the central CPU can be wired (using data connections) or wireless. For this purpose, at least one processing unit can establish a Bluetooth connection to the central CPU.

[0047] According to at least one embodiment, at least one device comprises at least two sensors. In this respect, a sensor group can already be formed by these two sensors. The two sensors can then be controlled and / or regulated by a common processing unit.

[0048] It is conceivable that the numerous processing units form a processing network, whereby the acquisition, processing, and / or transmission of the sensor data and / or the processing data of each sensor and / or each processing unit is controlled by at least one control unit (master). The control unit can be identical to the CPU described above.

[0049] However, it is also possible that one or more of the processing units represent the master, which controls the other processing units (slave) and / or the other sensors (slave).

[0050] For example, after the device is commissioned (e.g., after being switched on), one of the processing units and / or the CPU can select sensors to be activated for a predefined period of use. Alternatively, all or some sensors can be activated; however, in this case, it is conceivable that a processing unit and / or the CPU, particularly for the purpose of saving energy, only forwards data from a predefined number of sensors (i.e., fewer than all sensors) to the CPU (filtering).

[0051] This master processing unit can preferably be the only unit that communicates with the CPU.

[0052] Alternatively or additionally, it is conceivable that one or all processing units and / or a sensor (slave or master) communicate directly with the CPU.

[0053] According to at least one embodiment, the processing network can be subdivided into at least two network segments (VLANs) that are only logically separated from each other by means of at least one VLAN switch, and each of the acquisition elements can be controlled depending on the control by a VLAN switch and / or the control device and thus by each of the network segments.

[0054] For example, if a very large area (such as a textile) is equipped with a large number of sensors and processing units, individual processing units and / or sensors can be categorized in a particularly simple way (according to different priorities, etc.). In one implementation, a "virtual," i.e., VLAN, subdivision is used instead of a physical network subdivision. This ensures that changes in the categorization of the processing units and / or sensors can be addressed very quickly and without costly reconfiguration.

[0055] According to at least one embodiment, the control system comprises at least one processing network, wherein, by means of at least one VLAN switch of the processing network, this network can be subdivided into at least two network segments (VLANs) that are only logically separate from each other, and wherein each processing unit and / or each of the sensors can be controlled by each of the network segments depending on the control by the VLAN switch.

[0056] The VLAN switch can be installed in at least one of the processing units and / or sensors, or in a separate component.

[0057] According to at least one embodiment, the VLAN switch is used to prioritize the individual network segments, particularly with regard to their data exchange.

[0058] According to at least one embodiment, each processing unit and / or network segment is assigned at least one VLAN ID, and at least one sensor or other processing unit can be controlled via each VLAN ID. Individual sensors and / or individual processing units can form their own subnetwork.

[0059] To communicate across network boundaries, state-of-the-art technology employs static, project-dynamic routes. This separation model is clear and straightforward and has been used for years. However, it has the disadvantage that broadcast requests within the subnet are visible to all participants and must be processed by the endpoints. In other words, until now, different end devices could only be accessed via separate, physically isolated switches assigned to each subnet. Such a setup is particularly costly and complex to design.

[0060] As mentioned above, this eliminates the need for each subnetwork to be equipped with a separate switch and separate physical data lines, allowing a single physical structure to be used for the entire network, with this physical structure, i.e., network architecture, being separated only on the basis of a logical, and in particular mathematical, distinction (i.e., conceptually).

[0061] The abbreviation "VLAN switch" refers to a network switch that is set up and intended to operate a network in the form of a Virtual Local Area Network (VLAN).

[0062] Therefore, the network segments now being used, which can each be configured as a VLAN network, make it possible to divide the network into several logical segments, i.e., the network segments.

[0063] Unlike physical separation by assigning devices to a switch port, VLAN separation logically separates devices using a VLAN ID. Each device's data stream is assigned an identifier (the VLAN "tag"). This identifier determines which VLAN a data packet belongs to. All devices with the same VLAN identifier are then in the same logical network.

[0064] In particular, the logical separation of the individual networks allows broadcasts to be limited. Broadcasts are only distributed to members of the same VLAN and not to all controllers connected to the switch.

[0065] This contributes not only to higher performance but also to greater security, as data traffic is restricted to fewer recipients. Furthermore, users or control systems within a VLAN typically have no way to escape its assigned VLAN. Access to (or attack on) another computer that does not belong to the same VLAN can therefore be prevented by the network switch. If cross-VLAN communication is necessary, routes can be explicitly configured for this purpose.

[0066] It is specifically noted that the VLAN technology described here may be one that is adapted to and / or compatible with the industry standard IEEE 802.1Q.

[0067] The IEEE 802.1Q standard is an IEEE-standardized prioritization and VLAN technology that, unlike older, port-only VLANs, implements packet-based tagged VLANs. The term "tagged" is derived from the English term "material tags".

[0068] Tagged VLANs are therefore networks that use network packets which carry a special VLAN tag.

[0069] In particular, the 802.1Q standard defines data fields for V-LAN tagging that can be introduced into the data area of ​​an Ethernet packet.

[0070] Therefore, the existing network can be configured as an Ethernet communication system.

[0071] This has the advantage that existing, older switches can usually forward such packets. The inserted tag typically consists of several fields, for example, four fields with a total length of 32 bits.

[0072] 2 bytes are used for the protocol ID, 3 bits for the priority field, 1 bit for the canonical format indicator, and 12 bits for the VLAN ID.

[0073] To uniquely identify a VLAN, each VLAN is first assigned a unique number. This number is called the VLAN ID. A discovery module equipped with VLAN ID = 1 can communicate with any other device in the same VLAN, but not with a device in a different VLAN, such as those with IDs 2, 3, etc.

[0074] To differentiate between VLANs, an Ethernet frame is extended by 4 bytes according to the IEEE 802.1Q standard. Of these, 12 bits are reserved for the VLAN ID, so that (without using the Canonical format) theoretically 4096-2 = 4094 VLANs are possible.

[0075] It is conceivable that the individual logical network connections are configured according to an OPC standard, i.e., for example, in the form of OPC UA connections. In particular, it is conceivable that multiple OPC UA endpoints with different IP addresses, VLAN IDs, and prioritizations according to the aforementioned IEEE 802.10 standard are available for each network segment via the control device.

[0076] If a network segment that has been uniquely, preferably unambiguously, assigned a specific VLAN ID has a higher priority than a network segment with a different VLAN ID that differs from it only logically, then the control device and / or the VLAN switch may be designed to prioritize the data exchange of the higher-priority network segment first, in order to allow processing of the lower-priority network segment only after the tasks assigned to this higher-priority network segment have been completed.

[0077] In other words, the general rule is: assigning and configuring OPC UA endpoints to a specific network segment according to the VLAN ID and assigning a priority according to the priority of the corresponding VLAN.

[0078] According to at least one embodiment, each sensor and / or each processing unit is assigned at least one VLAN ID, and each network segment is in turn assigned at least one, for example exactly one, unique, preferably one-to-one, VLAN ID, wherein at least one control element can be controlled via each of the VLAN IDs. According to at least one embodiment, at least one device comprises at least one temperature sensor, wherein the temperature sensor measures an ambient temperature and / or the temperature of a sensor and transmits it to the processing unit of a device and / or to the central CPU.

[0079] According to at least one embodiment, the central CPU determines a utilization level (CPU load and / or memory consumption) of at least one processing unit, whereby if a limit temperature of the processing unit and / or at least of the sensor assigned to this processing unit is exceeded, its performance is at least partially throttled or it is completely switched off.

[0080] According to the invention, the sensor is additionally a capacitive pressure sensor, wherein the processing unit is additionally configured and provided to measure and / or store a change in the capacitance of the capacitor caused by external pressure.

[0081] Essentially, a capacitive sensor is a sensor that operates based on changes in the electrical capacitance of a single capacitor or a capacitor system. The influence of the quantity to be measured on the capacitance can occur in various ways, primarily determined by the intended use.

[0082] A "capacitive sensor" is based, among other things, on the fact that "two electrodes, one of which can be the measuring surface, form the "plates" of an electrical capacitor, whose capacitance or change in capacitance is measured, which can be influenced as follows: - A plate is displaced and / or deformed by the measuring effect, which changes the plate distance and thus the electrically measurable capacitance. - The plates are rigid and the capacitance itself changes when an electrically conductive material or a dielectric is brought into close proximity. - The effective plate area changes by shifting the plates relative to each other, as in a variable capacitor.

[0083] To better detect even small changes, the actual measuring electrode can often be surrounded by a shielding electrode that protects the inhomogeneous boundary region of the electric field from the measuring electrode. This results in an approximately parallel electric field between the measuring electrode and the usually grounded counter electrode, with the well-known characteristics of an ideal parallel-plate capacitor" (Wikipedia - The Free Encyclopedia: Page "Capacitive Sensor". Last edited on 18 June 2018. URL: https: / / de.wikipedia.org / wiki / Kapazitiver_Sensor).

[0084] According to the invention, a capacitive pressure sensor is, in particular, one in which the change in capacitance due to the deflection of a diaphragm and the resulting change in the plate spacing is evaluated as a sensor effect. For example, the diaphragm is the aforementioned dielectric material or the individual capacitor electrodes, which can be designed, in particular, in the form of a plate. In other words, in such an embodiment, a capacitive humidity sensor is combined with a capacitive pressure sensor in a novel way, but without these components forming separate elements or two separate sensors. Rather, the present embodiment is a "two-in-one" concept in which the same sensor functions as both a humidity sensor and a pressure sensor.

[0085] According to at least one embodiment, the carrier material is a woven fabric, in particular in which electrical conductors for electrical contacting of the sensor and the processing unit are woven.

[0086] For the purposes of the invention, a woven fabric is therefore a fabric which has been woven manually or by machine on the basis of individual threads.

[0087] The electrical conductors can therefore be integrated into a fabric in addition to the usual fibers and fabric strands, or they can replace individual fabric strands that form the fabric network.

[0088] Depending on the spacing and properties of the individual threads (twisted, bulky, etc.), very loose fabrics, such as bandages, or dense fabrics, such as brocade, can be created. Longitudinally elastic fabrics are achieved through the use of rubber threads (more bands are used) as warp threads or crimped and bulky yarns. These are stretched, processed, and then contract when at rest. Bulky yarns consist of textured, i.e., crimped, synthetic fibers. The crimping alters the properties of the synthetic fibers. The yarns spun from these fibers are very elastic and voluminous and offer good thermal insulation.

[0089] For example, the substrate material can be part of the upholstery fabric of a seat, in particular a vehicle seat or an office chair. In this respect, the sensor, or preferably the entire device, can be applied to or integrated into the upholstery fabric of such a seat.

[0090] For example, the processing unit is set up and designed to record the individual humidity and pressure values ​​and to determine at least one characteristic value from a combination of the individual humidity and pressure values, from which it can be derived which individual (with weight and / or size) is currently occupying the vehicle seat.

[0091] For example, the processing unit can derive and determine a person's weight from the pressure measurement. It can also measure the moisture that a person releases to the sensor, with the resulting value being, for example, the product of the relative humidity value and the weight determined by the processing unit.

[0092] If such a parameter exceeds a corresponding limit, the processing unit can issue a warning, particularly via a connection to the vehicle's electronics. This warning could indicate that the seat is overoccupied or that the driver is sweating excessively. However, this warning could also be replaced by a display indicating the type of occupant using the seat. Occupancy type could be a weight classification of the respective user, or it could be whether the user is an animal, a person, or even an object. Therefore, the processing unit is preferably integrable into the vehicle's display electronics, or at least connectable to such an electronic system.

[0093] It is conceivable that the processing unit connects to a receiving unit of the vehicle, for example via Bluetooth or another wireless connection, and that the respective characteristic or limit value and / or the respective warning and / or the respective identification of the user is displayed on a display of the vehicle.

[0094] Alternatively or additionally, it is conceivable that these individual values ​​and / or identifications could also be retrieved and / or displayed externally. For example, the car could be monitored for overload by an external controller.

[0095] For example, a data connection can be used to link the processing unit with an airbag trigger unit, allowing the processing unit to control and / or regulate the trigger unit, particularly regarding the airbag deployment time. Additionally and / or alternatively, the processing unit can provide an airbag controller unit with data, for example, regarding the occupant type, position, and / or weight of the vehicle seat user.

[0096] This data can be used to adjust the triggering time and sequence of the airbag to the user, thus preventing personal injury to the user.

[0097] According to at least one embodiment, at least one electrode and / or dielectric layer is printed onto the substrate material or onto a layer arranged on the substrate material, in particular a water-impermeable layer, or applied using a thin-film process.

[0098] This means that at least one element, preferably both the electrode and the dielectric layer, is printed onto the substrate material or a preferably electrically non-conductive, and further preferably waterproof layer applied between the sensor and the substrate material by means of a printing process.

[0099] The printing process could, for example, be an inkjet process.

[0100] For example, the processing unit is applied to the substrate in the same way as the sensor. It is conceivable that the processing unit, or at least one layer of it, particularly a conductive one, is printed onto the substrate. Data communication between the processing unit and the sensor can then occur via the aforementioned conductive traces. These conductive traces can be woven into the fabric, at least partially, but preferably completely, or even form individual fibers of the fabric itself.

[0101] For example, at least one electrode is designed as a flat surface. This means that the thickness of the electrode is negligible compared to its surface area. Such an electrode can therefore be manufactured, in particular, using a printing process.

[0102] Alternatively, the thickness of at least one electrode can be a maximum of 5 mm. The printing process can be applied multiple times so that at least two, but preferably more, individual printed layers are stacked on top of each other.

[0103] Furthermore, the electrode can also be arranged on the substrate material using a 3D printing process. 1. The FDM process (Fused Deposition Modeling) Alternative names: Fused Filament Fabrication (FFF), Fused Layer Modeling (FLM)

[0104] The process involves the layer-by-layer application (extrusion) of a material through a hot nozzle. The consumable material, in the form of a long wire (filament) on a spool, is fed by the feed unit into a print head, where it is melted and deposited onto a build plate. The print head and / or build plate are movable in three directions, allowing layers of plastic to be applied one on top of the other. 2. The SLS process (Selective Laser Sintering)

[0105] Unlike sintering, where powdered materials are fused together under heat, SLS selectively uses a laser (alternatively an electron beam or infrared beam). Only a specific portion of the powder is fused together.

[0106] A thin layer of powder is applied to the print bed by the coating unit. The laser (or other energy source) is then precisely aimed at specific points within the powder layer to create the first layer of the print data. During this process, the powder is partially melted and then solidifies again upon slight cooling. The unmelted powder remains around the sintered areas and serves as support material. After a layer has solidified, the print bed lowers by a fraction of a millimeter. The coating unit then moves across the print bed and applies the next layer of powder. The second layer of the print data is then sintered by the laser (or other energy source). In this way, a three-dimensional object is created layer by layer. 3. Three-Dimensional Printing (3DP)

[0107] The 3DP process works very similarly to selective laser sintering, but instead of a directed energy source, a print head moves across the powder. This head deposits tiny droplets of binder onto the underlying powder layers, bonding them together. Otherwise, this process is identical to SLS. 4. Stereolithography (SLA)

[0108] Instead of plastic filament or powdered printing material, the stereolithography process uses liquid resins, so-called photopolymers. These are hardened layer by layer by UV radiation, thus creating three-dimensional objects. For this process, the build platform is lowered step by step into the resin bath. There are also variants (so-called PolyJet processes) that do not use a whole bath of liquid resin. In these, an epoxy resin is applied drop by drop from a nozzle and immediately cured by a UV laser. 5. Laminated Object Manufacturing (LOM)Alternative name: Layer Laminated Manufacturing (LLM)

[0109] The process is based neither on chemical reactions nor on a thermal process. It involves cutting a film or sheet (e.g., paper) along its contour using a separating tool (e.g., a knife or carbon dioxide laser) and gluing the layers together. Lowering the build platform then creates a layered object made of glued, overlapping films.

[0110] One or more waterproof layers and / or the moisture layer can be applied in the same way and / or thickness as the electrode.

[0111] According to at least one embodiment, the moisture layer completely covers the condenser.

[0112] This can mean that the moisture layer, to the outside, i.e. in the transverse direction, demarcates and seals off the sensor to the outside, so that the sensor is arranged between the moisture layer and the substrate material.

[0113] According to the invention, the sensor has at least one further capacitor which is arranged in the transverse direction below or above the capacitor and is spaced apart from the capacitor by a further waterproof layer on or below this further waterproof layer, so that a capacitor stack is formed.

[0114] According to the invention, the further capacitor is constructed in the same way as the capacitor and can also be arranged on the further water-impermeable layer in the same way as the capacitor.

[0115] According to the invention, the sensor technology can be refined particularly easily using such a capacitor stack, namely insofar as it is conceivable that, with two sensors forming the capacitor stack, both sensors perform the same tasks, but each sensor determines its own measured value, which, taken together, allows for the calculation of an average value. For example, each of the two sensors measures the (relative) humidity of the environment, and the average humidity value is then calculated from these two measured values. The same can be done accordingly with pressure measurement, so that the accuracy of the entire measurement, especially a combination of measurements of (relative) humidity and the respective pressure, can be made particularly precise.

[0116] According to at least one embodiment, the waterproof layer and / or the further waterproof layer forms the dielectric layer at least partially itself.

[0117] This can mean that instead of the separate positioning of a dielectric layer next to the waterproof layer and / or next to the further waterproof layer, this dielectric layer itself is formed by the waterproof layer and / or the further waterproof layer.

[0118] Therefore, generating the dielectric layer using the water-impermeable layer(s) in this way constitutes a particularly simple and cost-effective manufacturing process for a cost-effective device.

[0119] Apart from that, it can generally be provided that the electrodes, the dielectric layer and the waterproof layer(s) are arranged in such a way as to prevent an electrical short circuit in any case.

[0120] According to at least one embodiment, the maximum thickness of the moisture layer is at least 30% and at most 80% of the maximum thickness of the waterproof layer and / or the maximum thickness of the further waterproof layer.

[0121] This not only ensures a particularly flat sensor design, but also guarantees a particularly fast response time to changes in humidity. Moisture acting on the moisture layer from the outside therefore does not have to travel long distances to reach the dielectric.

[0122] Furthermore, the present invention relates to a method for measuring pressure and / or humidity, whereby it should be noted in particular that all features disclosed for the device described above are also disclosed for the method described here and vice versa.

[0123] According to at least one embodiment, the method for measuring pressure and / or humidity initially comprises a first step by which at least one control system, in particular according to at least one of the preceding claims, is provided, wherein the control system provides at least one sensor for measuring pressure and / or humidity, wherein the sensor has at least one capacitor with at least two electrodes, which are arranged to each other, in particular in a horizontal direction along and on a, in particular flexible, support material, wherein at least one dielectric layer is arranged between the electrodes.

[0124] According to the invention, on a side facing away from the support material, at least one electrode and / or the dielectric layer is arranged, at least partially, a moisture layer that is at least partially permeable to liquid and / or absorbs liquid, wherein the at least one electrode and / or the dielectric layer are thus arranged in a transverse direction between the support material and the moisture layer, so that a capacitance is at least partially changed by the liquid that at least partially affects the dielectric layer, wherein a processing unit measures and / or stores this change, so that a capacitive moisture sensor is created.

[0125] The method described above has the same advantages and advantageous features as the device described above.

[0126] The invention described here will be described in more detail below with reference to two exemplary embodiments and the corresponding figures.

[0127] Identical or equivalent components are marked with the same reference symbols.

[0128] The Fig. Figures 1A to 1C show an embodiment of a control system described herein and according to the invention.

[0129] In the Fig. Figure 2 shows a schematic perspective view of an exploded view of a sensor of the device described here, shown in relation to the layer order.

[0130] In the Fig. Figure 3 shows another embodiment of a device described herein.

[0131] In the Fig. Figure 4 shows another embodiment of a device described herein.

[0132] The Fig. Figure 1A shows a schematic diagram of a control system 1000 according to the invention as described herein. A processing unit 5 is visible, which communicates with a plurality of sensors 1. The processing unit 5, together with the sensors 1, forms a device 100. The humidity and / or pressure values ​​measured by the individual sensors 1 are sent to a central CPU 40 for storage and / or further processing. A temperature sensor 60 is also shown, which measures the ambient temperature and / or the temperature of the sensor 1 and transmits this information to the processing unit 4 of the device 100 and / or to the central CPU 40.

[0133] The central CPU 40 and / or the processing unit 5 compares this data, i.e. the pressure and / or humidity values, with corresponding values ​​stored in a database or sent to the database, and, preferably only if there is a match with these stored values ​​or corresponding value ranges, the central CPU 40 sends a release signal to a comparison device 6, which then unlocks a usage object 7 for use.

[0134] A transmitting device 8, which sends predetermined values ​​or value ranges of pressure and / or humidity values ​​to the balancing device 6, is provided, wherein the balancing device 6 compares these received values ​​with the values ​​or value ranges sent by the central CPU 40 to the balancing device 6.

[0135] Based on the individual humidity and pressure values, the central CPU 40 can determine at least one respective characteristic value from which it can be deduced which individual, according to weight and / or size, is currently occupying the device 100 for measuring pressure and / or humidity.

[0136] Furthermore, a facial recognition device 9 is shown, by means of which the captured image data B1 is compared with the authorization data B2, which is also stored in the database, whereby this comparison includes a classification comparison of data classes of the image data B1 with data classes of the authorization data B2, whereby a classification of the image data B1 is carried out on the basis of the user's movement vectors such that first a movement profile is created from the user's movement over time by the facial recognition device 9, whereby the user's movement profile includes movement vectors of the same, and furthermore, whereby users and / or user movements are grouped into so-called data blobs or data clusters, which are then classified in their form and / or extent.

[0137] The Fig. Figure 1B schematically shows the entire control system 1000, with a plurality of sensor groups formed by the individual devices 100 for measuring pressure and / or humidity, each of which displays a processing unit 5. Each processing unit 5 is therefore assigned a plurality of sensors 1.

[0138] The Fig. Figure 1C schematically shows the installation and integration of the control system 1000 into a chair, in particular an office chair.

[0139] How now the Fig. 2, which can be removed, shows a device 100 for measuring pressure and / or humidity.

[0140] An example is shown there of a sensor 1, where the sensor 1 shows a capacitor stack with a capacitor 20, as well as a capacitor 30, wherein the individual electrodes 10, 11 of the capacitors 20, 30 are arranged one above the other in the horizontal direction H1, whereas alternatively, of course, an arrangement of the individual electrodes 10, 11 of a single capacitor 20, 30 in the transverse direction Q1 which runs perpendicular to the horizontal direction H1 and thus also perpendicular to the main extension direction of the sensor 1 shown there can be.

[0141] The individual electrodes 10, 11 are arranged on a support material 13. The support material 13 can be, in particular, a woven fabric, especially a flexible woven fabric.

[0142] A waterproof layer 4 is arranged on the carrier material 13, wherein the two electrodes 10, 11 of the capacitor 20 are printed on this waterproof layer 4 in the horizontal direction H1.

[0143] The electrodes 10, 11 of the capacitor 20 are completely surrounded by a further waterproof layer 14. The further capacitor 30 with corresponding electrodes 10, 11 is printed onto this waterproof layer 14 in the same manner. In addition, in the present embodiment, exposed outer surfaces of the individual electrodes 10, 11 of the further capacitor 30 are preferably completely surrounded by a water-permeable and / or water-absorbing moisture layer 3.

[0144] Water can pass through this moisture layer 3 onto a dielectric layer 4, which in this case is arranged in the horizontal direction H1 between the respective electrodes 10, 11 of a capacitor 20, 30.

[0145] In the present embodiment of the Fig. 2 and Fig. 3 The water-impermeable layer 4 itself forms a dielectric layer 4 of the capacitor 20. The same applies to the further water-impermeable layer 14 with respect to the further capacitor 30.

[0146] The impact and penetration of moisture via the moisture layer 3 alters the dielectric properties, in particular those of the dielectric layer 2 of the further capacitor 30.

[0147] Furthermore, a processing unit 5 is identifiable, which is in data technical communication with the two capacitors 20, 30, whereby this processing unit 5 is set up and intended to measure a change in the relative humidity of the environment and / or the moisture layer 3.

[0148] Through the in the Fig. The “stackwise” arrangement shown in Figure 3, and the fact that the additional water-impermeable layer 14 prevents the capacitor 20 from coming into contact with moisture, allows for the possibility that only the additional capacitor 30 and its dielectric layer 4 are exposed to moisture. The processing unit 5 can then compare a change in the capacitance of the additional capacitor 30 with the stable capacitance of the capacitor 20, thus enabling a particularly simple comparison of changes in relative humidity and / or the respective load pressure.

[0149] Through the in the Fig. The arrow shown in Figure 2 also indicates a pressure direction under which the sensor 1 is subjected to pressure. Both can preferably be measured, evaluated, and stored by the sensor 1 and, in particular, by the device 100. For this purpose, the processing unit 5, which is shown as essential in the invention, serves in particular. This unit can additionally measure and evaluate corresponding pressure values ​​and the associated changes in the capacitance of the individual sensors 1. Thus, the processing unit 5 is additionally designed and intended to measure and / or store a change in the capacitance of the capacitor 20 and, in particular, also of the further capacitor 30 caused by external pressure.

[0150] The moisture layer 3 can be flexible or inflexible. It is also possible that the moisture layer 3 is a woven fabric. In particular, it can be a woven fabric, such as the one mentioned as an example in the introductory part of this application. However, it is also possible that the moisture layer 3 is a substrate that has been applied to the further capacitor 30, for example, by means of an epitaxial or adhesive process.

[0151] The water-impermeable layer 14 and / or the water-impermeable layer 15 can be flexible or inflexible, and in particular can also be in the form of a woven fabric or a substrate in the same way as the moisture layer 3.

[0152] Furthermore, it is advantageously conceivable that the electrodes 10, 11 of the two capacitors 20, 30 were printed onto the water-impermeable layer 14 and the further water-impermeable layer 15 in the form of a printing process, for example an inkjet printing process.

[0153] In the Fig. Figure 3 shows an exploded view, in particular from the Fig. Figure 3 shows the respective arrangement of the electrodes 10, 11 and the capacitors 20, 30. The force acting on the sensor 1, indicated by the direction of the arrow, is again recognizable, as is the moisture acting through the individual drops shown schematically. In particular, it is again evident that the moisture penetrates especially between the electrodes 10, 11 and has, for example, a significant effect on the electrical properties of the respective water-permeable layer 14, such that the capacitance of at least the further capacitor 30 changes as shown in the Fig. 1 explains each change.

[0154] In the Fig. Figure 4 shows a further embodiment of the invention described herein in which the sensor 1 can consist of two electrodes 10 and one electrode 11. The electrodes 10 have one polarity (preferably the same polarity), while the electrode 11 has a different polarity, as shown in the lower part of the illustration. Fig. 3 the exploded view of the left part of the Fig. Figure 3 shows that three water-impermeable layers 4, 14, 15 are used. The electrodes 10 can also have different polarities and / or electrical potentials. The electrodes 10 can also be electrically connected to each other.

[0155] For example, electrodes 10 and 11 can each have and / or generate a separate polarity and / or a separate electrical potential. The same can also apply to the electrodes in the following figures.

[0156] For example, the lowest waterproof layer is again the waterproof layer 4, the following waterproof layer 14 and the waterproof layer 15 arranged in the transverse direction Q1 on it is another waterproof layer, wherein an electrode is applied, in particular printed, on a separate waterproof layer in each case.

[0157] In this stacking of the individual impermeable layers 4, 14 and 15, and therefore by combining these layers, the left part of the Fig.4 Capacitor 20 shown is generated, wherein in the transverse direction Q1, the electrodes 10 are each arranged on different planes, as can be seen in the corresponding partial image.

[0158] Alternatively, the electrode 11 can be applied together with at least one of the electrodes 10 in a common plane, i.e. on or in a common water-impermeable layer 4, 14, 15, so that, for example, only the second of the electrodes 10 needs to be stacked on a separate water-impermeable layer 4, 14, 15.

[0159] Therefore, the individual electrodes 10, 11 can generally be arranged in different planes relative to each other in the Q1 direction. For example, there is a pairwise assignment between exactly one water-impermeable layer 4, 14, 15 and exactly one electrode 10, 11.

[0160] The invention is not limited by the description based on the exemplary embodiment. Rather, the invention encompasses any new feature, as well as any combination of features, which in particular includes any combination of features in the patent claims, even if this feature or combination itself is not explicitly specified in the patent claims or in the exemplary embodiments. Reference symbol list 1 sensor 3 Moisture layer 4 dielectric layer / waterproof layer 5 processing units 6. Adjustment device 7. Object of use 8 Transmitter 9 Facial recognition device 10 electrode 11 Electrode 12 electrode 13 Carrier material 14 waterproof layer 15 waterproof layer 20 Capacitor 30 Capacitor 40 CPU 60 Temperature sensor 100 Device 200 Procedure 1000 control system B1 Image data B2 Authorization Data H1 horizontal direction Q1 Transverse direction

Claims

Control system (1000) for comparing measured pressure and humidity values ​​with pressure and humidity values ​​stored in a database, comprising at least one device (100) for measuring pressure and humidity, comprising at least one sensor (1) for measuring pressure and humidity, wherein the sensor (1) has at least one capacitor (20) with at least two electrodes (10, 11) which are arranged in a horizontal direction (H1) along and on a flexible support material (13) relative to each other, wherein at least one dielectric layer (4) is arranged between the electrodes (10, 11), wherein at least partially liquid-permeable and / or liquid-absorbing moisture layer (3) is arranged at least locally on a side facing away from the support material (13), wherein the at least one electrode (10, 11) and / or the dielectric layer (4) is thus the at least partially liquid-permeable and / or liquid-absorbing moisture layer (3), wherein the at least one electrode (10,11) and / or the dielectric layer (4) are arranged in a transverse direction (Q1) between the support material (13) and the moisture layer (3) such that the capacitance is at least partially changed by the liquid that at least partially affects the dielectric layer (4), wherein a processing unit (5) is configured and provided for measuring and / or storing measured values ​​of the sensor (1) so that a capacitive humidity sensor is created, wherein the data measured by the sensor (1) are sent by the processing unit (5) to a central CPU (40), wherein this data is processed by the CPU (40), wherein the central CPU (40) and / or the processing unit (5) compares this data, i.e. the pressure and / or humidity values, with corresponding values ​​stored in or sent to a database, and, preferably only if there is a match with these stored values ​​or corresponding value ranges,the central CPU (40) sends a release signal to a calibration device (6), which then unlocks a user object (7) for use, based on the individual humidity and pressure values ​​the central CPU (40) determines at least one respective characteristic value from which it can be derived which individual, according to weight and / or size, is currently occupying the device (100) for measuring pressure and humidity, and / or that, after a vehicle seat has been occupied, a pre-stored seat position, a pre-stored light and / or sound ambience, a pre-stored music and / or radio station or other personalized services are selected and / or applied depending on the identified person, wherein the sensor (1) is additionally a capacitive pressure sensor, wherein the processing unit (5) is additionally configured and intended to measure and / or store a change in capacitance of the capacitor (20) caused by external pressure,and further, wherein a capacitive pressure sensor is one in which the change in capacitance due to the deflection of a membrane and the resulting change in the plate spacing is evaluated as a sensor effect, such that the membrane is the dielectric layer (14) or the individual capacitor electrodes (10, 11), characterized in that the sensor (1) has at least one further capacitor (30) which is arranged in the transverse direction (Q1) above or below the capacitor (20) and is spaced apart from the capacitor (20) by a further water-impermeable layer (15) on or below this further water-impermeable layer (15), so that a capacitor stack is formed, and further, wherein both capacitors (20, 30) are constructed in the same way. Control system (1000) according to claim 1, characterized by at least a transmitting device (8) which sends predetermined values ​​or value ranges of the pressure and / or humidity values ​​to the synchronizing device (6), and the synchronizing device (6) compares these received values ​​with the values ​​or value ranges sent by the central CPU (40) to the synchronizing device (6). Control system (1000) according to the preceding claim, characterized in that the transmitting device (8) is a vehicle key or at least a part thereof, wherein the transmitting device (8) is configured and provided to communicate with the synchronization device (6) and / or the central CPU (40) by means of a wireless connection. Control system (1000) according to claim 3, characterized in that the matching device (6) is integrated into the vehicle key. Control system (1000) according to at least one of the preceding claims, characterized in that the matching device (6) releases a vehicle lock, an immobilizer, a steering wheel lock, an accelerator and / or brake pedal for use in the event of a data match. Control system (1000) according to claim 1, characterized in that if the measured data do not match the stored data and / or deviate by more than 25% from the stored data values, a face recognition device (9) recognizes a user's face based on image data (B1), and despite the data deviation, then unlocks the usage object (7), provided that the face recognition device (9) identifies a user's face as identical to a face stored in the face recognition device (9). Control system (1000) according to claim 6, characterized in that the captured image data (B1) are compared with authorization data (B2) which are also stored in the database, wherein this comparison comprises a classification comparison of data classes of the image data (B1) with data classes of the authorization data (B2), wherein a classification of the image data (B1) is carried out on the basis of the user's movement vectors in such a way that a movement profile is first created from the user's movement over time by the face recognition device (9), wherein the user's movement profile comprises movement vectors of the same, and further wherein users and / or user movements are grouped into so-called data blobs or data clusters, which are then classified in their form and / or extent. Method (200) for comparing measured pressure and humidity values, comprising a first step by which a control system (1000) is provided, which includes: - at least one device (100) for measuring pressure and humidity, comprising - at least one sensor (1) for measuring pressure and humidity, wherein the sensor (1) has - at least one capacitor (20) with at least two electrodes (10, 11) which are arranged in a horizontal direction (H1) along and on a flexible support material (13) relative to each other, wherein at least one dielectric layer (4) is arranged between the electrodes (10, 11), wherein on a side facing away from the support material (13) at least one electrode (10, 11) and / or the dielectric layer (4) at least locally at least a liquid-permeable and / or liquid-absorbing moisture layer (3) is arranged,wherein the at least one electrode (10, 11) and / or the dielectric layer (4) are arranged in a transverse direction (Q1) between the support material (13) and the moisture layer (3), such that the capacitance is at least partially changed by the liquid that at least partially impinges on the dielectric layer (4), wherein a processing unit (5) measures and / or stores measured values ​​of the sensor (1), thus creating a capacitive humidity sensor, wherein the data measured by the sensor (1) are sent by the processing unit (5) to a central CPU (40), wherein this data is processed by the CPU (40), wherein the central CPU (40) and / or the processing unit (5) compares this data, i.e., the pressure and / or humidity values, with corresponding values ​​stored in or sent to a database, and, preferably only if there is a match with these stored values ​​or corresponding value ranges,The central CPU (40) sends a release signal to a calibration device (6), which then unlocks a user object (7) for use, whereby, based on the individual humidity and pressure values, the central CPU (40) determines at least one respective characteristic value from which it can be derived which individual, according to weight and / or size, is currently occupying the device (100) for measuring pressure and / or humidity, and / or that, after a vehicle seat has been occupied, a pre-stored seat position, a pre-stored light and / or sound ambience, a pre-stored music and / or radio station, or other personalized services are selected and / or applied depending on the identified person, wherein the sensor (1) is additionally a capacitive pressure sensor.wherein the processing unit (5) is additionally configured and designed to measure and / or store a change in capacitance of the capacitor (20) caused by external pressure, and further wherein a capacitive pressure sensor is one in which the change in capacitance due to the deflection of a membrane and the resulting change in the plate spacing is evaluated as a sensor effect, such that the membrane is a dielectric layer (14) or the individual capacitor electrodes (10, 11), characterized in that the sensor (1) has at least one further capacitor (30) which is arranged in the transverse direction (Q1) above or below the capacitor (20) and is spaced apart from the capacitor (20) by a further water-impermeable layer (15) on or below this further water-impermeable layer (15), so that a capacitor stack is formed, and further wherein both capacitors (20,30) are structured in the same way.

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