WO2021144372A1 - Dispositif de stockage, en particulier dispositif de détection pour matelas permettant la mesure de pression, de gaz et/ou d'humidité sur la base d'une humidité ambiante - Google Patents

Dispositif de stockage, en particulier dispositif de détection pour matelas permettant la mesure de pression, de gaz et/ou d'humidité sur la base d'une humidité ambiante Download PDF

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Publication number
WO2021144372A1
WO2021144372A1 PCT/EP2021/050713 EP2021050713W WO2021144372A1 WO 2021144372 A1 WO2021144372 A1 WO 2021144372A1 EP 2021050713 W EP2021050713 W EP 2021050713W WO 2021144372 A1 WO2021144372 A1 WO 2021144372A1
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WO
WIPO (PCT)
Prior art keywords
moisture
layer
sensor
gas
humidity
Prior art date
Application number
PCT/EP2021/050713
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
Priority claimed from DE102020100679.9A external-priority patent/DE102020100679A1/de
Priority claimed from DE102020100670.5A external-priority patent/DE102020100670A1/de
Application filed by B-Horizon GmbH filed Critical B-Horizon GmbH
Publication of WO2021144372A1 publication Critical patent/WO2021144372A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
    • G01N27/225—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity by using hygroscopic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58—Seat coverings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
    • G01L1/125—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using magnetostrictive means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • G01L5/165—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in capacitance

Definitions

  • Storage device in particular mattress sensor device for measuring pressure, gas and / or humidity on the basis of ambient humidity
  • the present invention relates to a storage device for measuring pressure, gas and / or moisture and a method for measuring pressure, gas and / or moisture, comprising the respective preambles of claims 1 and 8.
  • the mattress sensor device proposed here can be used, among other things, to determine and / or monitor the degree of occupancy of a mattress.
  • a degree of occupancy can be understood to mean whether a person is in the intended place on the mattress - that is, whether the person is lying on the mattress, in particular also using the occupancy location and / or the occupancy distribution on the mattress. For this purpose, it can be determined on the basis of the weight on the sensor (which can be arranged between the goods and the storage surface) whether the sensor is loaded with a weight (and if so how much). If a sufficient weight load has been reached, the storage device can indicate that the mattress is occupied. Additionally or independently the moisture on the storage area can also be used as information for the occupancy of the mattress.
  • the horizontal direction is preferably a main direction of extent of the flexible carrier material.
  • “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, for example.
  • 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 moisture-permeable and / or moisture-absorbing and / or gas-permeable and / or gas-absorbing moisture layer is arranged on a side facing away from the carrier material, with the at least one electrode and / or dielectric layer are arranged in a transverse direction between the carrier material and the moisture layer, so that a capacitance is at least partially changed by the moisture at least partially hitting the dielectric layer, a processing unit being set up and provided for this change / or to save, so that a capacitive humidity sensor is created.
  • the dielectric constant of the polymer material changes as a function of the moisture content.
  • the storage device for measuring pressure, gas and / or moisture comprises at least one sensor for measuring pressure, gas and / or moisture, wherein the sensor comprises at least one capacitor with at least two electrodes, which in particular in a horizontal direction one and on an in particular flexible carrier material are arranged to one another, with at least one dielectric layer being arranged between tween 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 and / or gas impermeable layer.
  • moisture-absorbing layer can be understood to mean an at least partial absorption of moisture from an ambient medium into the layer itself. Moisture can therefore be understood as a gaseous or droplet phase in the surrounding medium. The moisture can be contained in the ambient air or some other ambient medium of the layer.
  • moisture absorption does not necessarily have to be limited to absorption of water vapor, but can more generally include any droplets and / or gas absorption. In its most general meaning, moisture then also relates to any droplet and / or gas phase in the surrounding medium.
  • the water or liquid content of air is generally referred to as humidity.
  • the absolute humidity indicates how much water or liquid vapor is contained in the volume unit of the gas mixture; Unit of measurement: g of water (or other Liquid) -m ⁇ 3 .
  • the relative humidity is the quotient of the amount of liquid vapor present in the gas at a certain temperature and the saturation amount of liquid vapor possible at the same temperature. The relative humidity is usually given in percent (%). To do this, the quotient is multiplied by 100. If the air is saturated, ie the relative humidity is 100%, some of the liquid in the air is liquid. In this case, the associated liquid-gas mixture is referred to as haze or mist.
  • moisture or dampness can be the measure of the presence of water or another liquid in or on a material (e.g. textiles) or a substance or in a gas or in a room.
  • the moisture-absorbing and / or gas-absorbing moisture layer described here can therefore differ from a, in particular only liquid-absorbing (moisture) layer, among other things in that the moisture-absorbing and / or gas-absorbing moisture layer is made of a material which, in addition to adsorption moisture contained in the surrounding medium is also absorbed by liquid.
  • the moisture-absorbing and / or gas-absorbing moisture layer merely absorbs moisture in the surrounding medium of the layer and therefore cannot absorb any liquid.
  • 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. With wireless technologies, energy harvesting avoids restrictions due to wired power supply or batteries. Energy harvesting options:
  • 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 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 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 different 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 measuring effect, which changes the plate spacing and thus the measurable electrical capacitance.
  • the plates are rigid and the capacitance changes in that 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 that shields the inhomogeneous edge area of the electric field from the measuring electrode.This results in an almost parallel electric field with the known one between the measuring electrodes of the usually grounded counter electrode Characteristic of an ideal plate capacitor.
  • 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 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 fabric, in particular in which electrical conductor tracks for electrical contacting of the sensor and the processing unit are woven.
  • 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.
  • tissue strands Depending on the distance and properties of the individual threads (twisted up, fluffy, etc.), very loose fabrics such as bandages or dense fabrics such as brocade fabric can arise.
  • Woven fabrics are longitudinally elastic through rubber 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 properties of the 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 material 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 record the individual humidity and pressure values and, from a combination of the individual humidity and pressure values, to determine at least one respective characteristic value from which it can be derived which individual (with weight and / or Size) currently occupies the vehicle seat.
  • 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 could mean that the seat is overcrowded or 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 is therefore preferably in display electronics of the vehicle can be integrated, but at least connectable to such.
  • the processing unit connects to a receiving unit of the vehicle, for example via 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.
  • the water-impermeable layer can also be a gas-impermeable layer and / or this water-impermeable layer can be replaced by a gas-impermeable layer.
  • a water-permeable layer can also be a gas-permeable layer and / or this water-permeable layer is replaced by a gas-permeable layer.
  • 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 it is conceivable that the processing unit, however, at least one, in particular conductive, layer of the processing unit is, for example, printed onto the carrier material.
  • 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 a material layer by layer (extrusion) 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.
  • Print head and / or print bed are movable in three directions. In this way, layers of plastic can be applied one on top of the other.
  • 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 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 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 then 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.
  • Polyjet process without a whole tank with liquid resin. To do 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.
  • the contour is cut with a separating tool (e.g. a knife or carbon dioxide laser), a film or a plate (e.g. paper) and glued on top of each other in layers.
  • a separating tool e.g. a knife or carbon dioxide laser
  • a film 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.
  • 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 is arranged below 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 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 an average 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 pressure measurement, 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 view 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 method of making a cost-effective 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 present invention relates to a method for measuring pressure, gas and / or moisture, it being particularly noted that all of the features disclosed for the device described above are also disclosed for the method described here and vice versa.
  • the method for measuring pressure, gas and / or moisture initially comprises a first step by means of which at least one sensor for measuring pressure, gas and / or moisture is provided, the sensor having at least one capacitor with at least two electrodes, which, in particular in a horizontal direction, are arranged along and on a, in particular flexible, carrier material to one another, 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 moisture-permeable and / or moisture-absorbing and / or gas-permeable and / or gas-absorbing moisture layer is arranged on a side facing away from the carrier material, with the at least one electrode and / or or the dielectric layer are arranged in a transverse direction between the carrier material and the moisture layer, so that a capacitance changes at least partially due to the moisture at least partially hitting the dielectric layer, a processing unit measuring and / or storing this change, so that a capacitive moisture sensor arises.
  • the method described above has the same advantages and advantageous configurations as the device described above.
  • FIG. 1 a storage device according to the invention for measuring pressure, gas and / or moisture is shown in a first embodiment.
  • 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. 1 there is shown a storage device 100 for measuring pressure, gas and / or moisture.
  • 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 runs or can be arranged perpendicular to the direction in which the sensor 1 shown there extends.
  • 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 H 1.
  • 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 dig surrounded by a water- and / or gas-permeable and / or water- and / or gas-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 storage device 100.
  • the processing unit 5, which is shown as essential in the invention and which also provides corresponding pressure values and insofar as can measure and evaluate associated changes in the capacitance of the individual sensors 1, so that the processing unit 5 is additionally set up and provided for this purpose to measure and / or add a change in capacitance of the capacitor 20 and in particular of the further capacitor 30 caused by external pressure to save.
  • the moisture layer 3 can be designed to be flexible or not flexible. It is also possible that the moisture layer 3 is designed as a woven fabric. In particular, it can be a woven fabric, which was mentioned by way of example in the introductory part of the present application. In addition, however, it is also possible that 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 force acting on the sensor 1, shown by the direction of the arrow, as well as the moisture acting through the individual, schematically shown drops, can again be seen.
  • the moisture penetrates in particular between the electrodes 10, 11 and has a considerable effect on the electrical property of the respective water- and / or gas-permeable layer 14, for example, so that the capacitance of at least the further capacitor 30 is increased as explained in FIG. 1 changes in each case.
  • 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 polarity different therefrom, but the exploded view of the left part of FIG. 3 is shown and can be seen in the right partial image of FIG is that three waterproof 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 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 a further 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 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. For example, there is a paired assignment between exactly one water-impermeable layer 4, 14, 15 with exactly one electrode 10, 11.
  • the invention is not limited by the description using the exemplary embodiment. Rather, the invention encompasses every new feature, as well as every combination of features, which in particular every combination of features in the patent claims includes, even if this feature or this combination itself is not explicitly specified in the patent claims or in the exemplary embodiments.

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Abstract

La présente invention concerne un dispositif de stockage, en particulier un dispositif de détection pour matelas, permettant la mesure de pression, de gaz et/ou d'humidité, et un procédé de mesure de pression, de gaz et/ou d'humidité. Le dispositif comprend au moins un capteur permettant la mesure de pression, de gaz et/ou d'humidité, le capteur comprenant au moins un condensateur doté d'au moins deux électrodes disposées l'une par rapport à l'autre en particulier dans une direction horizontale le long d'un matériau support en particulier flexible et sur celui-ci. Au moins une couche diélectrique est disposée entre les électrodes. L'invention est caractérisée en ce qu'au moins une couche d'humidité au moins partiellement perméable à l'humidité et/ou absorbant l'humidité et/ou perméable au gaz et/ou absorbant le gaz est disposée au moins par endroits sur un côté d'au moins une électrode et/ou de la couche diélectrique qui est tourné à opposé d'un matériau support. Dans une direction transversale, ladite au moins une électrode et/ou la couche diélectrique sont disposées entre le matériau support et la couche d'humidité. Ainsi, une capacité varie au moins partiellement en réponse à l'entrée en contact d'au moins une partie de l'humidité avec la couche diélectrique, une unité de traitement étant configurée et conçue pour mesurer et/ou mémoriser cette variation, afin de permettre l'obtention d'un capteur d'humidité capacitif.
PCT/EP2021/050713 2020-01-14 2021-01-14 Dispositif de stockage, en particulier dispositif de détection pour matelas permettant la mesure de pression, de gaz et/ou d'humidité sur la base d'une humidité ambiante WO2021144372A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102020100679.9A DE102020100679A1 (de) 2020-01-14 2020-01-14 Ablagevorrichtung, insbesondere Matratzensensorvorrichtung zur Messung von Druck, Gas und/oder Feuchtigkeit auf Basis einer Umgebungsfeuchtigkeit
DE102020100670.5A DE102020100670A1 (de) 2020-01-14 2020-01-14 Belegungsvorrichtung zur Messung von Druck, Gas und/oder Feuchtigkeit auf Basis einer Umgebungsfeuchtigkeit
DE102020100670.5 2020-01-14
DE102020100679.9 2020-01-14

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170172490A1 (en) * 2015-12-22 2017-06-22 Sharp Laboratories of America (SLA), Inc. Matrix Multi-Sensor Array
WO2017122178A1 (fr) * 2016-01-14 2017-07-20 King Abdullah University Of Science And Technology Plateforme électronique à base de papier
US20180031511A1 (en) * 2016-07-26 2018-02-01 Hyundai Motor Company Occupant classification apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170172490A1 (en) * 2015-12-22 2017-06-22 Sharp Laboratories of America (SLA), Inc. Matrix Multi-Sensor Array
WO2017122178A1 (fr) * 2016-01-14 2017-07-20 King Abdullah University Of Science And Technology Plateforme électronique à base de papier
US20180031511A1 (en) * 2016-07-26 2018-02-01 Hyundai Motor Company Occupant classification apparatus

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