WO2021094285A1 - Système de dispositif de mesure de pression et/ou d'humidité et/ou de température au moyen d'une configuration à double capteur - Google Patents

Système de dispositif de mesure de pression et/ou d'humidité et/ou de température au moyen d'une configuration à double capteur Download PDF

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Publication number
WO2021094285A1
WO2021094285A1 PCT/EP2020/081579 EP2020081579W WO2021094285A1 WO 2021094285 A1 WO2021094285 A1 WO 2021094285A1 EP 2020081579 W EP2020081579 W EP 2020081579W WO 2021094285 A1 WO2021094285 A1 WO 2021094285A1
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WIPO (PCT)
Prior art keywords
sensor
humidity
processing unit
carrier material
layer
Prior art date
Application number
PCT/EP2020/081579
Other languages
German (de)
English (en)
Inventor
Mohammad Kabany
Original Assignee
B-Horizon GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B-Horizon GmbH filed Critical B-Horizon GmbH
Priority to EP20804511.2A priority Critical patent/EP3908486A1/fr
Publication of WO2021094285A1 publication Critical patent/WO2021094285A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/25—Means to switch the anti-theft system on or off using biometry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6893—Cars
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0531—Measuring skin impedance

Definitions

  • the present invention relates to a device system for measuring pressure and / or humidity and / or temperature as well as a method for measuring pressure and / or humidity and / or temperature comprising the respective preambles of patent claims 1 and 8.
  • the device according to the invention for measuring pressure and / or humidity and / or temperature comprises at least one carrier element on which at least one base sensor for measuring pressure and / or humidity and / or temperature is arranged, the base sensor having at least one first measured variable, i.e. pressure or humidity, an external excitation exerted by an operator of the device system on the base sensor, at least one sensor for measuring pressure and / or humidity and / or temperature, the sensor being arranged for measuring pressure and / or humidity and / or temperature , the sensor measuring at least one second measured variable, that is to say pressure or humidity, of an external excitation exerted on the sensor by an operator of the device system.
  • first measured variable i.e. pressure or humidity
  • an external excitation exerted by an operator of the device system on the base sensor
  • the sensor being arranged for measuring pressure and / or humidity and / or temperature
  • the sensor measuring at least one second measured variable, that is to say pressure or humidity, of an external excitation exerted on the sensor by an operator of the device system
  • the sensor comprises at least one capacitor with at least two electrodes, which are arranged, in particular in a horizontal direction, along and on a, in particular flexible, carrier material to one another, with at least one dielectric layer being arranged between the electrodes.
  • the horizontal direction is preferably a main direction of extent of the flexible Trä germaterials. “Flexible” in this context means that the carrier material is at least in places flexible and therefore elastic.
  • the carrier material can be a woven fabric or some other clothing material, such as a polyester.
  • the dielectric layer thus separates the two electrodes in a horizontal and / or in a transverse direction perpendicular thereto.
  • At least one electrode and / or the dielectric layer at least in places, at least one, at least partially liquid-permeable and / or liquid-absorbing moisture layer is arranged on a side facing away from the carrier material, with the at least one electrode and / or dielectric layer in a transverse direction are arranged between the carrier material and the moisture layer, so that a capacitance is at least partially changed by the liquid at least partially hitting the dielectric layer, a processing unit being set up and provided for measuring and / or storing this change, so that a capacitive ver humidity sensor arises.
  • Both measured values of both sensors are stored and / or processed in the processing unit and then compared with the release values stored in the processing unit, and if the measured values essentially match the stored release values, the processing unit sends a release signal to an object of use, such as a display , a door handle or the like.
  • the release values can represent limit values measured by one or both of the sensors, beyond which the processing unit releases the use of a usage object. It is conceivable that when a certain force load is exceeded, a release signal is sent to the usage object. After receiving the release signal, the usage object is then released.
  • the dielectric constant of the polymer material changes as a function of the moisture content.
  • the task of the processing unit is, among other things, to determine the relative humidity as precisely as possible from a measured ambient temperature and the humidity-dependent capacitance value of the sensor.
  • the device for measuring pressure and / or humidity comprises at least one sensor for measuring pressure and / or humidity, the sensor comprising at least one capacitor with at least two electrodes, which in particular in a horizontal direction along one and are arranged on an in particular flexible carrier material to one another, with at least one dielectric layer being arranged between the electrodes.
  • the moisture layer can be formed with a dielectric material.
  • the material of the moisture layer can be different from the material of the water-impermeable layer.
  • the sensor and / or the processing unit can be supplied with electrical energy by means of a battery or a fixed mains power supply.
  • Energy harvesting refers to the production of small amounts of electrical energy from sources such as ambient temperature, vibrations or air currents for mobile devices with low power.
  • the structures used for this are also known as nanogenerators.
  • Energy harvesting avoids at Wireless technologies Restrictions due to wired power supply or batteries.
  • Piezoelectric crystals generate electrical voltages when a force is applied, for example through pressure or vibration. These crystals can be arranged on or on the carrier material.
  • Thermoelectric generators and pyroelectric crystals generate electrical energy from temperature differences. These generators can be arranged on or on the carrier material.
  • the energy of radio waves can be captured and used energetically via antennas.
  • Passive RFIDs are an example of this. These antennas can be arranged on or on the carrier material.
  • the basic sensor carries out a first measurement, on the basis of which a group of people stored in the processing unit on the basis of the release values can be clearly identified by the processing unit, and, preferably only after this identification or in parallel, the sensor carries out a second measurement solution by means of which at least one specific person who generates the external excitation of the device system is identified.
  • Both sensors are preferably arranged on the carrier element.
  • the carrier element can be designed in one piece in the form of a mounting surface.
  • the Trä gerelement is flexible and / or elastic. It is conceivable that the carrier material is formed with a GRP or CFRP material.
  • a glass fiber reinforced plastic, or GFK for short is a fiber-plastic composite made of a plastic and glass fibers. Both thermosetting plastics (e.g. polyester resin [UP] or epoxy resin) and thermoplastic plastics (e.g. polyamide) can be used as the basis.
  • thermosetting plastics e.g. polyester resin [UP] or epoxy resin
  • thermoplastic plastics e.g. polyamide
  • a carbon fiber reinforced plastic, also carbon fiber reinforced plastic (CFRP) or shortened (colloquially) also carbon fiber, carbon or carbon, is a composite material in which carbon fibers are embedded in a plastic matrix. The matrix is used to connect the fibers and to fill the gaps.
  • CFRP carbon fiber reinforced plastic
  • shortened (colloquially) also carbon fiber, carbon or carbon
  • the matrix is used to connect the fibers and to fill the gaps.
  • the material epoxy resin is usually chosen as the matrix. But there are also other thermosets or thermoplastics te possible as a matrix material.
  • the senor is additionally a capacitive pressure sensor, the processing unit also being set up and provided to measure and / or store a change in capacitance of the capacitor caused by external pressure.
  • a capacitive sensor is basically a sensor that works on the basis of the change in the electrical capacitance of an individual capacitor or a capacitor system.
  • the capacity can be influenced by the size to be recorded in various ways, which are primarily determined by the intended use.
  • a capacitive sensor is based, among other things, on the fact that two electrodes, one of which can be the surface to be measured, 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 effect to be measured, which changes the plate spacing and thus the measurable electrical 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 when the plates are shifted against each other like a rotary capacitor.
  • the actual measuring electrode can often be surrounded by a shielding electrode, which covers the inhomogeneous edge area.
  • the area of the electric field is shielded by the measuring electrode, which results in an approximately parallel electric field with the known characteristics of an ideal plate capacitor between measuring electrodes and usually grounded counterelectrodes.
  • a capacitive pressure sensor is in particular one in which the change in capacitance due to the bending of a membrane and the resulting change in the plate spacing is evaluated as a sensor effect.
  • the membrane is the above-mentioned dielectric or else the individual capacitor electrodes, which can in particular be designed in the form of a plate.
  • 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.
  • the carrier material is a woven material, in particular in which electrical conductor tracks for electrical contacting of the sensor and the processing unit are woven.
  • the carrier material is formed with a plastic and / or a ceramic.
  • the carrier material is preferably an electrical non-conductor.
  • Non-conductors are substances whose electrical conductivity with less than 10 ⁇ 8 S-cmrf 1 and a specific resistance of over 10 8 W-cm is comparatively low and therefore mostly irrelevant and below that of semiconductors. While the term in physics is used for any material, such as gases and the vacuum, in technology it usually only means solids.
  • both sensors are installed in or under or above a door handle and / or a display.
  • the sensors are arranged in pairs on the carrier material.
  • the carrier material in turn can be arranged on an outer surface of a door handle.
  • the sensors can be arranged below an outer surface of the door handle, specifically in such a way that a pressure exerted by the user can be transmitted through the then thin outer surface of the door handle.
  • the then thin outer surface of the door handle itself is elastic and / or moisture-permeable, so that not only external pressure from the user's hand, but also a moisture measurement of the moisture of the surroundings and / or the user's hand can be carried out.
  • the example is not limited to a door handle, but includes any object of use with an outer surface.
  • a thin outer surface is understood to mean a layer and / or wall thickness of a few millimeters.
  • the thin layer is less than three millimeters, preferably less than one millimeter thick.
  • the basic sensor is identical in structural design to the sensor. That is to say, the basic sensor can have the same haptic features in an identical sequence to one another.
  • the processing unit processes different measured values from the two sensors. A redundancy measurement of one and the same measured value (temperature, humidity, pressure) is preferably avoided.
  • a woven fabric is therefore a fabric that has been woven manually or by machine on the basis of individual threads.
  • the electrical conductor tracks can therefore also be integrated in a tissue in addition to the usual fibers and tissue strands, or they can replace individual tissue strands which form the tissue network.
  • Woven fabrics are longitudinally elastic through elastic threads used as warp threads (more ribbons used) or crimped and bulked yarns. They are tensioned, processed and contract when at rest.
  • Bulky yarns consist of textured, i.e. crimped synthetic fibers. The crimp changes the natural shafts of synthetic fibers.
  • the yarns spun on it are very elastic and voluminous and have good thermal insulation.
  • the carrier material can be part of a cover fabric for a seat, in particular a vehicle seat or an office chair.
  • the sensor but preferably the entire device, can be applied to the cover material of such a seat or integrated into such a seat.
  • the processing unit is set up and provided to detect the individual humidity, pressure and / or temperature values and to determine at least one respective 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) currently occupies the vehicle seat.
  • the measurement can be carried out using a dual sensor configuration.
  • a weight of the respective person can be derived and determined from the pressure measurement by the processing unit.
  • the respective moisture that the respective person emits to the sensor can also be measured, the respective characteristic value being, for example, a product of the relative humidity value times the load weight determined by the processing unit.
  • the processing unit can issue a warning, in particular by means of a connection to the electronics of the vehicle.
  • This warning may indicate that the seat is overcrowded or that the driver is sweating too much.
  • this warning can also be replaced by a corresponding display indicating which occupancy type is using the seat.
  • An occupancy type can be a weight classification of a respective user, or it can also be a question of whether the user is an animal, a person or a thing.
  • the processing unit can therefore preferably be integrated into display electronics of the vehicle, but at least can be connected to such.
  • the processing unit connects to a receiving unit of the vehicle, for example by means of Bluetooth or another wireless connection, and the respective characteristic or limit value and / or the respective warning and / or the respective identification of the user on a display of the vehicle be reproduced.
  • these individual values and / or identifications can also be called up and / or displayed externally.
  • the car can be monitored for overcrowding by an external controller.
  • the processing unit can be connected to a triggering unit of an airbag by means of a data connection, so that the processing unit can also control and / or regulate the triggering unit, in particular with regard to a triggering time of the airbag. Additionally and / or alternatively, it is possible for the processing unit to supply a controller unit of the airbag with data, for example with regard to an occupancy type, position and / or weight of a user of the vehicle seat.
  • At least one electrode and / or dielectric layer is printed on the carrier material or on a particularly water-impermeable layer arranged on the carrier material or applied by means of a thin-film method.
  • At least one element is printed on the carrier material or a preferably electrically non-conductive, further preferably water-impermeable layer applied between the sensor and the carrier material by means of a printing process.
  • the printing process can be an inkjet process, for example.
  • the processing unit is applied to the carrier material in the same way as the sensor.
  • the processing unit but at least one, in particular conductive, layer of the processing unit on the carrier material material is printed on, for example.
  • the data communication between the processing unit and the sensor can then take place via the conductor tracks mentioned above.
  • These conductor tracks can be at least partially, but preferably completely, woven into the woven fabric or even form individual fibers of the woven fabric itself.
  • At least one electrode is designed to be flat. This means that a thickness of the electrode is negligible compared to its areal extension. Such an electrode can therefore be produced in particular by means of a printing process.
  • a thickness of at least one electrode can be at most 5 mm.
  • the printing process can be used several times, so that at least two, but then preferably more, individual printing layers are stacked one on top of the other.
  • the electrode can also be arranged on the carrier material by means of a 3D printing process.
  • FFF Fused Filament Fabrication
  • FLM Fused Layer Modeling
  • the process refers to the application of layers (extrusion) of a material through a hot nozzle.
  • the consumables are in the form of a long wire (so-called filament) on a roll and are pushed into a print head by the conveyor unit, where they are melted and placed on a print bed.
  • the print head and / or print bed can be moved in three directions. In this way, layers of plastic can be applied to one another in stages.
  • the SLS process In contrast to the sintering process, in which substances are bonded together in powder form under the action of heat, in the SLS process this is done selectively by a laser (alternatively also electron beam or infrared beam). So only a certain part of the powder is melted together. For this purpose, a thin layer of powder is always applied to the printing bed by the coating unit.
  • the laser or other energy source
  • the laser is now aimed precisely at individual points of the powder layer in order to form the first layer of the print data.
  • the powder is melted or melted and then solidifies again through slight cooling.
  • the unmelted powder remains around the sintered areas and serves as a support material.
  • the print bed After a layer has solidified, the print bed lowers by a fraction of a millimeter.
  • the coating unit now moves over 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). This creates a three-dimensional object in layers.
  • the 3DP process works very similarly to selective laser sintering, but instead of a directed energy source, a print head moves over the powder. This releases tiny droplets of binding agent onto the underlying powder layers, which are thus bonded together. Otherwise this procedure is the same as the SLS procedure.
  • liquid resins are used in the stereo lithography process. They are hardened in layers by UV radiation and thus create three-dimensional objects. For this purpose, the construction platform in the Harz Basin is gradually being lowered.
  • the so-called Polyjet process without an entire tank with liquid resin. For this, an epoxy resin is applied drop by drop from a nozzle and immediately hardened by a UV laser.
  • LOM Laminated Object Manufacturing
  • the process is based neither on chemical reactions nor on a thermal process. It is cut with a separating tool (e.g. a knife or carbon dioxide laser), a foil or a plate (e.g. paper) along the contour and in layers glued to each other. By lowering the construction platform, a layered object is created from glued, overlapping foils.
  • a separating tool e.g. a knife or carbon dioxide laser
  • a foil or a plate e.g. paper
  • One or more water-impermeable layers and / or also the moisture layer can be applied in the same type and / or thickness as the electrode.
  • the moisture layer completely covers the capacitor.
  • the moisture layer delimits and closes off the sensor towards the outside, that is to say in the transverse direction, so that the sensor is arranged between the moisture layer and the carrier material.
  • both sensors are installed in or under a fabric cover of a seat, in particular a vehicle seat.
  • the above-mentioned thin outer surface can in this case be produced and represented by the fabric cover itself.
  • the senor has at least one further capacitor, which is arranged in the transverse direction below or above the capacitor and spaced apart from the capacitor by a further water-impermeable layer or under this further water-impermeable layer, so that a capacitor stack is formed.
  • the further capacitor can be constructed in the same way as the capacitor and can also be arranged in the same way as the capacitor on the further water-impermeable layer.
  • the sensor system can be particularly easily refined insofar as it is conceivable that, with two sensors forming the capacitor stack, both sensors perform the same tasks, but the individual sensors determine respective measured values which, taken together, conclude a mean value to let. For example, the (relative) humidity of the environment is measured by each of the two sensors, the average humidity value then being determined from these two measured values. The same can be done accordingly with the measurement done so that the accuracy of the entire measurement, in particular a combination of the measurements of (relative) humidity and the respective pressure, can be designed particularly precisely.
  • the water-impermeable layer and / or the further water-impermeable layer at least partially form the dielectric layer itself.
  • this dielectric layer itself is formed by the water-impermeable layer and / or the further water-impermeable layer.
  • Such a production of the dielectric layer by the water-impermeable layer (s) therefore forms a particularly simple and cost-effective production method for an inexpensive device.
  • the electrodes, the dielectric layer and the water-impermeable layer (s) can in principle be arranged in relation to one another in such a way that an electrical short circuit is prevented in any case.
  • a maximum thickness of the moisture layer is at least 30% and at most 80% of the maximum thickness of the water-impermeable layer and / or the maximum thickness of the further water-impermeable layer.
  • the carrier element is identical to the carrier material and / or the carrier material is formed with a plastic, a metal and / or a ceramic, for example with at least one of the above-mentioned materials.
  • the present invention relates to a method for measuring pressure and / or humidity, it being particularly noted that all of the features disclosed for the above-described device are also disclosed for the method described here, and vice versa.
  • the method for measuring pressure and / or humidity and / or temperature initially comprises a first step by means of which at least one device system according to at least one of the preceding embodiments is provided for measuring pressure and / or humidity and / or temperature, wherein the sensor has at least one capacitor with at least two electrodes, wel che, in particular arranged in a horizontal direction along and on a, in particular flexible, carrier material to each other, with at least one dielectric layer being arranged between the electrodes.
  • At least one electrode and / or the dielectric layer at least in places, at least one, at least partially liquid-permeable and / or liquid-absorbing moisture layer is arranged on a side facing away from the carrier material, with the at least one electrode and / or the dielectric layer between them in a transverse direction the carrier material and the moisture layer are arranged so that a capacitance changes at least partially due to the liquid at least partially hitting the dielectric layer, a processing unit measuring and / or storing this change so that a capacitive moisture sensor is created.
  • both measured values of both sensors are stored and / or processed in the processing unit and then compared with the release values stored in the processing unit, and if the measured values essentially match the stored release values, the processing unit sends a release signal to a
  • the object of use such as a display, a door handle or the like, sends.
  • FIG. 1 A device according to the invention for measuring pressure and / or humidity is shown in a first exemplary embodiment in FIG.
  • FIG 2 is a schematic perspective view of an exploded view shown in relation to the layer arrangement is shown.
  • FIG. 3 a further exemplary embodiment of a device described here is shown.
  • FIG. 4 shows an exemplary embodiment of a device system according to the invention for measuring pressure and / or humidity and / or temperature.
  • FIG. 1 a device 100 for measuring pressure and / or humidity is shown there.
  • a sensor 1 is shown there as an example, the sensor 1 showing a capacitor stack with a capacitor 20 and a capacitor 30, the individual electrodes 10, 11 of the capacitors 20, 30 being arranged one above the other in the horizontal direction H1, alternatively
  • the individual electrodes 10, 11 of an individual capacitor 20, 30 in the transverse direction Q1 which runs perpendicular to the horizontal direction H1 and thus also run or can be arranged perpendicular to the main direction of extension of the sensor 1 shown there.
  • the individual electrodes 10, 11 are arranged on a carrier material 13.
  • the Trä germaterial 13 can in particular be a woven fabric, in particular a flexible woven fabric.
  • a water-impermeable layer 4 is arranged on the carrier material 13, the two electrodes 10, 11 of the capacitor 20 being printed on this water-impermeable layer 4 in the horizontal direction H1.
  • the electrodes 10, 11 of the capacitor 20 are completely surrounded by a further water-impermeable layer 14.
  • the further capacitor 30 with corresponding electrodes 10, 11 is printed in the same way.
  • exposed outer surfaces of the individual electrodes 10, 11 of the further capacitor 30 are preferably completely reversed by a water-permeable and / or water-absorbing moisture layer 3.
  • water can hit a dielectric layer 4, which in the present case is arranged in the horizontal direction H1 between the respective electrodes 10, 11 of a capacitor 20, 30.
  • the water-impermeable layer 4 itself forms a dielectric layer 4 of the capacitor 20.
  • the water-impermeable layer 14 forms a dielectric layer 4 of the capacitor 20.
  • the further water-impermeable layer 14 with regard to the further capacitor 30.
  • the dielectric properties, in particular of the dielectric layer 2 of the further capacitor 30, are changed.
  • a processing unit 5 can be seen which is in data-technical relationship with the two capacitors 20, 30, this processing unit 5 being set up and intended to measure a change in the relative humidity of the environment and / or the humidity layer 3.
  • the processing unit 5 can then compare a change in the capacitance of the further capacitor 30 with the stable capacitor capacitance of the capacitor 10, so that a particularly simple comparison can be made in the change in the relative humidity and / also in the respective load pressure.
  • the arrow shown in FIG. 1 also shows a pressure direction in 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.
  • the processing unit 5, shown as essential in the invention is used, which can also measure and evaluate corresponding pressure values and changes in the capacitance of the individual sensors 1 associated therewith, so that the processing unit 5 is also set up and provided for a through to measure and / or store the change in capacitance of the capacitor 20 and in particular also of the further capacitor 30 caused by external pressure.
  • the moisture layer 3 can be designed to be flexible or not flexible.
  • the moisture layer 3 can be designed as a woven material.
  • it can be a woven fabric, which was mentioned as an example in the introductory part of the present application.
  • the moisture layer 3 is a substrate which, for example, has been applied, for example glued, to the further capacitor 30 in the form of an epitaxy or an adhesive process.
  • the water-impermeable layer 14 and / or the water-impermeable layer 15 can also be flexible and inflexible, in particular also in the form of a woven fabric or a substrate in the same way as the moisture layer 3.
  • 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.
  • FIG. 2 An exploded view is shown in FIG. 2, the respective arrangement of the electrodes 10, 11 of the capacitors 20, 30 being evident in particular from FIG.
  • the moisture penetrates in particular between the electrodes 10, 11 and has, for example, a significant effect on the electrical properties of the respective water-permeable layer 14, so that the capacitance of at least the further capacitor 30 increases as in FIG explained in each case changes.
  • FIG. 3 shows that 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, but the exploded view of the left part of FIG. 3 is shown in the right partial image of FIG. 3 and it can be seen that three water-impermeable layers 4 , 14, 15 can be used.
  • the electrodes 10 can also have different polarities and / or electrical potentials.
  • the electrodes 10 can also be electrically connected to one another.
  • the electrodes 10, 11 can each have and / or generate a separate polarity and / or a separate electrical potential. The same can also apply to those in the following figures with regard to the electrodes.
  • the lowermost water-impermeable layer is in turn the water-impermeable layer 14, the subsequent water-impermeable layer 15 and the water-impermeable layer 16 arranged thereon in the transverse direction Q1 is another water-impermeable layer, with one electrode in each case being applied to a separate water-impermeable layer in particular is printed.
  • the capacitor 20 shown in the left part of FIG. 3 is produced by merging these layers, the electrodes 10 being removed in the transverse direction Q1, as in the corresponding partial image can be arranged on different levels.
  • the electrode 11 can also be applied together with at least one of the electrodes 10 in a common plane, that is to say on or in a common water-impermeable layer 4, 14, 15 so that, for example, only the second of the electrodes 10 is placed on a separate one waterproof layer 4, 14, 15 stacked up who must.
  • the individual electrodes 10, 11 can therefore be arranged in different planes in the Q1 direction with respect to one another.
  • a pairwise assignment applies between exactly one water-impermeable layer 4, 14, 15 with exactly one electrode
  • FIG. 4 shows an exemplary embodiment of a device system 300 according to the invention for measuring pressure and / or humidity and / or temperature.
  • the door handle forms the or at least part of a carrier element T1 on which at least one base sensor 01 for measuring pressure and / or humidity and / or temperature is arranged, with the base sensor 01 at least one first measured variable, i.e. pressure or humidity, a measures external excitation (for example pressure, temperature or humidity) exerted on the base sensor 01 by an operator of the device system 300.
  • a carrier element T1 on which at least one base sensor 01 for measuring pressure and / or humidity and / or temperature is arranged, with the base sensor 01 at least one first measured variable, i.e. pressure or humidity, a measures external excitation (for example pressure, temperature or humidity) exerted on the base sensor 01 by an operator of the device system 300.
  • external excitation for example pressure, temperature or humidity
  • Both measured values of both sensors 01, 1 are stored in the processing unit and / or processed by the processing unit and then compared with the release values stored in the processing unit, and if the measured values essentially match the stored release values, the processing unit sends a release signal an object of use, such as a display, a door handle or the like.

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Abstract

L'invention concerne un système de dispositif de mesure de pression et/ou d'humidité et/ou de température comprenant : au moins un élément de support, sur lequel est disposé au moins un capteur de base pour mesurer la pression et/ou l'humidité et/ou la température, le capteur de base mesurant au moins une première variable de mesure, c'est-à-dire la pression ou l'humidité, d'une excitation indépendante exercée sur le capteur de base par un utilisateur du système de dispositif; et au moins un capteur pour mesurer la pression et/ou l'humidité, le capteur étant conçu pour mesurer la pression et/ou l'humidité et/ou la température, et le capteur mesurant au moins une seconde variable de mesure, c'est-à-dire la pression ou l'humidité, d'une excitation indépendante exercée sur le capteur par un utilisateur du système de dispositif. Une unité de traitement est paramétrée et prévue pour mesurer et/ou stocker un changement de telle sorte qu'un capteur d'humidité capacitif est créé, les deux valeurs mesurées des deux capteurs étant stockées et/ou traitées dans l'unité de traitement, puis comparées à des valeurs de libération stockées dans l'unité de traitement. Si les valeurs mesurées correspondent sensiblement aux valeurs de libération stockées, l'unité de traitement envoie un signal de libération à un objet d'utilisation, tel qu'un afficheur, une poignée de porte ou similaire.
PCT/EP2020/081579 2019-11-12 2020-11-10 Système de dispositif de mesure de pression et/ou d'humidité et/ou de température au moyen d'une configuration à double capteur WO2021094285A1 (fr)

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DE102019130487.3 2019-11-12
DE102019130487.3A DE102019130487B4 (de) 2019-11-12 2019-11-12 Vorrichtungssystem und Verfahren zur Messung von Druck und/oder Feuchtigkeit und/oder Temperatur mittels einer Doppelsensorkonfiguration

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DE102021132130A1 (de) 2021-12-07 2023-06-07 B-Horizon GmbH Verfahren zur sensorischen Stress-Erfassung von Temperatur, Feuchtigkeit und/oder Druck an einer Windelinnenfläche einer Windel
DE102022104001A1 (de) 2022-02-21 2023-08-24 BH Holding GmbH Verfahren zur sensorischen Stress- Erfassung von Temperatur, Feuchtigkeit und/oder Druck an einer Windelinnenfläche einer Windel

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021132130A1 (de) 2021-12-07 2023-06-07 B-Horizon GmbH Verfahren zur sensorischen Stress-Erfassung von Temperatur, Feuchtigkeit und/oder Druck an einer Windelinnenfläche einer Windel
DE102022104001A1 (de) 2022-02-21 2023-08-24 BH Holding GmbH Verfahren zur sensorischen Stress- Erfassung von Temperatur, Feuchtigkeit und/oder Druck an einer Windelinnenfläche einer Windel

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DE102019130487A1 (de) 2021-05-12
DE102019130487B4 (de) 2022-12-01

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