WO2019144995A1 - Dispositif et procédé de détection autonome en énergie et de transmission de données de mesure de vibration et d'informations d'état d'un système, ainsi qu'utilisation - Google Patents

Dispositif et procédé de détection autonome en énergie et de transmission de données de mesure de vibration et d'informations d'état d'un système, ainsi qu'utilisation Download PDF

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Publication number
WO2019144995A1
WO2019144995A1 PCT/DE2019/100061 DE2019100061W WO2019144995A1 WO 2019144995 A1 WO2019144995 A1 WO 2019144995A1 DE 2019100061 W DE2019100061 W DE 2019100061W WO 2019144995 A1 WO2019144995 A1 WO 2019144995A1
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WO
WIPO (PCT)
Prior art keywords
energy
vibration
measurement data
measuring device
self
Prior art date
Application number
PCT/DE2019/100061
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German (de)
English (en)
Inventor
Arndt Hendrik Zinn
Original Assignee
Zolitron Technology 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 EP18401007.2A external-priority patent/EP3514508A1/fr
Priority claimed from DE102018101475.9A external-priority patent/DE102018101475A1/de
Application filed by Zolitron Technology Gmbh filed Critical Zolitron Technology Gmbh
Publication of WO2019144995A1 publication Critical patent/WO2019144995A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves

Definitions

  • the present invention relates to a device and a method for self-sufficient detection of vibration measurement data on a device to be measured, for example, on a container, wherein by means of a communication module an energy self-sufficient wireless transmission of the vibration measurement data or system state information based on an evaluation of the vibration measurement data can be carried out, in particular in each case over comparatively long periods of several months or even years. In this way, system state information can be provided energy self-sufficient and wireless, in the sense of a remote diagnosis.
  • the present invention also relates to a corresponding use.
  • the invention relates to an apparatus and a method according to the preamble of the respective independent claim.
  • the monitoring box usually provided for overseas containers in shipping can be cited.
  • position data can use it
  • system states such as "container open” or the time of system changes are recorded and archived.
  • the arrangement on the container takes place in particular in the region of the door in order to be able to detect an actuation of the door in a mechanical manner.
  • measures have already been taken to reduce the energy requirements of the sensor, or to allow self-sufficient desserts of energy from the environment, for example by means of solar modules. Such measures can be summarized, for example, under the keyword "Micro Energy Harvesting".
  • a more or less autonomous mode of operation is nowadays already feasible in some cases, if a recharge can take place over a period of, for example, ten hours and a light irradiation of 20,000 lux (corresponding to the light irradiation on a covered summer day).
  • WO 2005/066592 A1 describes a device for evaluating ultrasonic waves that must be generated artificially in a container wall. For the detection of fluid levels, the
  • Container wall forwarded and detected after a certain distance. Depending on the level results in a specific way of forwarding the vibrations in the container wall.
  • the distance should be as far as possible at least approximately full, and the propagation direction should be in the vertical direction.
  • the type of detection is determined by the sensors used (so-called “vibration-to-signal transducer” or “air transducer", for example, pulsed laser and
  • Magnetic coils called usable sensors). The detection is carried out in particular based on the amplitudes of the vibrations, wherein two sensors are attached to a lid of the container.
  • WO 2012/158371 A2 describes a method for analyzing acoustic sound responses from a container, for determining the fill level in the container. In this case, a specific sound pattern is generated by means of a plurality of sensors in relative arrangement to one another. The evaluation can be carried out in particular in an optical manner.
  • WO 2017/137832 A1 describes camera sensors for detecting the fill level in containers, which, thanks to visual contact with the container interior, can visually create a 3D model thereof in comparatively high quality.
  • JP 2016-020883 A describes a system of self-powered sensors for monitoring and diagnosing the condition of a building or other large structure and in particular ensuring a sufficient power supply of all sensors.
  • the energy supply is via a solar cell.
  • WO 2014/108206 A1 describes a self-sufficient sensor system with sensor, transmitter unit, self-sufficient energy source and control unit. The latter regulates the performance of measurements and the
  • the current energy generated by the energy source is taken as the basis for the regulation.
  • measurements are stopped.
  • a decoupling can be done by the network.
  • a related measure is to first charge a capacitor by means of the solar module in order to provide a minimum charge pulse for charging the battery can. This measure is also realized to avoid self-discharge (so-called "trickle charging").
  • the object is to provide a device and a method with which self-sufficient measurements and diagnoses on devices, machines, installations or devices of any kind can be facilitated, based on a recording and evaluation of vibration data. It is also an object to configure the device and the method such that little maintenance is required on the device or on the device to be monitored, and that a high degree of self-sufficiency of the measuring technology can be ensured. Last but not least, it is an object to provide apparatus and methods for a wide range of applications, in particular also with regard to level measurement with a high degree of self-sufficiency, in particular on containers.
  • An energy self-sufficient vibration measuring device for energy self-sufficient acquisition of vibration measurement data on a device to be measured, in particular on a container, with at least one energy storage for self-sufficient energy supply of the vibration measuring device, in particular over a self-sufficient energy period of at least six months or optionally at least five years, and equipped with at least one energy absorption unit for feeding energy harvested from the environment into the energy store, and further equipped with at least one communication module coupled to the energy store for energy-autonomous wireless transmission of the
  • Vibration measurement data based on at least one communication protocol, in particular from the group of LP WAN (Low Power Wide Area Networkj protocols, in particular based on SigFox and / or NBIoT.
  • LP WAN Low Power Wide Area Networkj protocols, in particular based on SigFox and / or NBIoT.
  • the vibration measuring device is set up for
  • Body vibration measurement data (data regarding vibrations or vibrations of bodies, in particular structure-borne noise) is recorded on a solid surface of the device to be measured, wherein the
  • Vibration measuring device has a computing unit and is further adapted for energy self-sufficient evaluation of the detected body vibration measurement data with regard to at least one system state of the device to be measured, in particular with regard to a system state in an area bounded by the device interior volume, in particular with regard to a level of liquid or solids in Interior volume, especially designed for evaluation exclusively based on the
  • Body vibration measurement data This provides a high degree of self-sufficiency in monitoring the corresponding facility.
  • the detection of body vibrations can be carried out in particular as reactive detection in response to external effects / causes of the body vibrations.
  • a detection of vibrations can take place, for example during filling (impact impulses) and / or when opening a container (in particular also vibrations caused by opening / closing a flap of the container).
  • This vibration or vibration measured value can be evaluated for determining the fill level (liquid and / or solids), in particular also by means of self-learning algorithms.
  • the diagnosis can optionally already based on an evaluation exclusively the
  • Vibrations / vibration emissions occur, which occur during manual operation of the container and / or when filling with fluids or solids. Active generation of certain vibration patterns or vibrations is not required. In other words, the vibration measuring device may remain passive in terms of vibration propagation. This reduces the complexity of the measuring arrangement and also allows a high degree of self-sufficiency. Since the measurement is based on externally generated vibration, e.g. caused by throwing in solids (e.g., bottles, glass, paper, mixed waste), the process can be carried out without its own active stimulation / vibration generation. The vibration measuring device is only active for detecting oscillations or vibrations and for transmitting data.
  • a measurement of strength, frequency and / or duration of the body vibrations or the vibrations can take place.
  • the device may be configured to detect the movements of the substances when filling the container with the substances, in particular in a mounting position of the device on a lid of the container.
  • an optical and / or acoustic detection unit in particular a camera device may be provided, in particular for the initial, one-time training of at least one self-learning algorithm.
  • An optical and / or acoustic detection can be provided in an application-specific manner in addition to the detection of the vibration measurement data.
  • the evaluated data can then be transmitted based on a low-energy communication technology, in particular time-controlled and / or event-controlled.
  • a low-energy communication technology in particular time-controlled and / or event-controlled.
  • Communication protocol may in particular be based on a LoRaWAN (Long Range WAN) protocol.
  • LoRaWAN Long Range WAN
  • energy-intensive types of measurement data acquisition can be dispensed with, and also the transmission can take place in an energy-optimized manner.
  • the accurate, but energy-intensive ultrasound technology does not have to be used.
  • one of the already proven, accurate measurement technologies may be additional or e.g. for calibration purposes or when installing and
  • the vibration measuring device is preferably understood to mean a device which functions separately from any auxiliary means and which is set up both to record the measured data and to evaluate and transmit it.
  • self-sufficient energy is understood to mean a functioning without supply of energy from third parties or other devices.
  • harvesting of energy from the environment can be carried out by the device itself, in particular by means of solar modules.
  • body vibration does not involve vibration of fluids caused by acoustic sound.
  • a body vibration may include a vibration caused by acoustic sound or vibration of a solid (structure-borne sound).
  • body vibration measurement data are the data characterizing the body vibrations. Therefore, body vibration measurement data are also those data which are obtained and evaluated as measurement data from the vibrations of bodies which generally occur in the respective application and optionally also from the associated noise developments (sound emission), which can also cause a corresponding body vibration.
  • the device to be measured is preferably any means (in particular open or closed container) for receiving substances or for the arrangement of e.g. Understand machine elements that defines an internal volume, which internal volume can also form a certain resonance volume.
  • the communication module By means of the communication module, a transmission of the body vibration data over the self-sufficient period, in particular at predefined times, and / or as a function of an energy content of the accumulator.
  • the communication module may be configured to communicate based on a plurality of protocols, in particular including at least SigFox and NBIoT.
  • the communication module can be set up to use at least one narrow-band wireless communication standard, in particular several LP WAN (Low Power Wide Area Network) standards. LP-WAN standards are characterized by low bandwidth and low power consumption.
  • Sigfox is based on LoRaWAN (Long Range WAN) technology.
  • NBIoT uses existing mobile technology, in particular LTE technology.
  • the Sigfox technology is used in particular for the transmission of comparatively small amounts of data and has already been used for some time for e.g. Modules used the location of
  • Connection with the detection and processing or transmission of relatively complex data / data sets can be used, in particular by means of the vibration measuring device, a preprocessing of Schwingungsroh stylist with respect to a preselection and optionally also
  • the body vibration measurement data may have been produced in an internal volume of the device to be measured, in particular during / through the insertion or filling of contents.
  • the resulting vibrations propagate in the inner volume and are transmitted to the wall.
  • By detecting (body) vibrations in the wall can be deduced the state in the internal volume.
  • a corresponding correlation can be optimized in particular also with the aid of self-learning algorithms.
  • the vibration measuring device has at least one energy absorption unit (harvesting module) configured for feeding energy harvested from the environment into the energy storage device (accumulator).
  • the harvesting module preferably has at least one module from the following group: Solar module (comprising at least one solar cell) arranged to feed energy harvested from natural and / or artificial light radiation; piezoelectric module.
  • the system state is preferably a state from the following group: operating state (eg full load operation, partial load operation, off, open, partially open, closed), noise behavior (normal expected standard noise, increased noise emission), level (in particular empty, partially filled, filled up to a predefinable threshold, more than 3/4 filled, full), power supply.
  • operating state eg full load operation, partial load operation, off, open, partially open, closed
  • noise behavior normal expected standard noise, increased noise emission
  • level in particular empty, partially filled, filled up to a predefinable threshold, more than 3/4 filled, full
  • System state can also be characterized by several types of these states: e.g.
  • Operating condition e.g., open flap container
  • level e.g., level
  • noise behavior e.g., noise behavior
  • a sensor for detecting the position of the flap may be provided on the container, which sensor is in communication with the vibration measuring device or integrated therein.
  • the fill level can refer to a fill level in an inner volume bounded by the device to be measured, in particular to a fill level in a completely hollow cavity.
  • the device may have any geometry.
  • the device may consist of any material, for example with metallic wall or plastic wall.
  • the contents may have any composition and be solid and / or liquid.
  • a vibration can be detected, in particular, when an external excitation occurs, e.g. by opening or closing a lid or filler neck, or controlled by a controllable actuator (vibration generator).
  • the SigFox communication protocol is a communication protocol based on ultra-narrowband technology, also known as LPWAN (low-traffic network), which enables radio connectivity for the Internet of Things (IoT), in particular independently of existing networks.
  • LPWAN low-traffic network
  • the arithmetic unit can be provided separately (in the manner of a downstream computer system, in particular decoupled from the acquisition of the measurement data), or be integrated into a sensor system for acquiring the measurement data.
  • the self-powered device is arranged according to the invention to carry out the detection and evaluation independently of any artificially actively excited, induced vibrations or oscillations. An energy supply to the active, artificial generation of vibrations or sound is therefore not required according to the invention.
  • the device according to the invention or the method according to the invention can also have at least one acoustic vibration sensor, or it can be a detection and evaluation of acoustic
  • comparative measurements can also be carried out, in particular ultrasound measurements or evaluations.
  • a short time interval is used at the very beginning of the commissioning.
  • a neural network can be trained, in particular in the form of a one-time training of algorithms, initially in a data logger phase.
  • the vibration measuring device is set up for energy-autonomous reactive detection of the vibration measurement data with respect to vibration propagation passive
  • the energy self-reactive detection can without active / active
  • At least one of the aforementioned objects is achieved by an energy self-sufficient vibration measuring device configured for self-sufficient detection of energy
  • Communication module configured for energy self-sufficient wireless transmission of the vibration measurement data based on at least one communication protocol from the group of LP-WAN protocols, in particular based on SigFox and / or NBIoT; wherein the vibration measuring device is set up for self-sufficient detection and transmission of the vibration measurement data in the form of Body vibration measurement data recorded on a solid surface of the device to be measured, wherein the vibration measuring device is set up for energy self-reactive detection of the
  • Vibration measurement data with respect to vibration propagation passive vibration measuring device wherein the vibration measuring device has a computing unit and is further adapted for energy self-sufficient evaluation of the detected body vibration measurement data with respect to a level of liquid or solids in an area bounded by the device interior, in particular designed for evaluation exclusively based on the body vibration measurement data.
  • This embodiment is especially advantageous for level measurement.
  • the vibration measuring device has a mechanical interface designed as a body vibration coupling (designed for stationary mounting or for stationary coupling to the device or to a fastening point of the device provided for this purpose) and is configured to detect the body vibration measurement data in a non-optical manner (By solid state contact or by the transmitted due to solid contact vibrations), in particular exclusively in a non-optical manner via the body vibration coupling or corresponding, in connection with the body vibration coupling sensor, especially in a mounting position outside of the solid surface For example, on a container or container or
  • a clutch is preferably arranged for forwarding
  • the body vibration coupling is adapted to be in solid state contact with the device to be measured.
  • the vibration measuring device may have at least one connected to the body vibration coupling body vibration sensor, in particular in a rigid arrangement, optionally integrated into the body vibration coupling. This allows detection with minimal dissipation or minimized losses, with minimized attenuation. This can increase the accuracy or even expand the field of application, in particular also with regard to weak vibrations or with respect to devices / containers which are e.g. only be filled with materials of comparatively small mass (e.g., paper, cardboard).
  • the vibration measuring device is designed to detect body vibration measurement data by means of the body vibration coupling in a solid-body contacting arrangement on the outside of the device, outside of an interior volume defined by the device, in particular without a view of the interior volume, in particular on a wall of the device. This not least provides a high degree of flexibility with regard to the arrangement or with regard to the monitored
  • the body vibration coupling has a body vibration guide surface adapted for the material-fit, in particular adhesive Fixiemng on the device. This can optimize the interface.
  • the body vibration coupling has a body vibration guide surface adapted for the material-fit, in particular adhesive Fixiemng on the device. This can optimize the interface.
  • the body vibration coupling has a body vibration guide surface adapted for the material-fit, in particular adhesive Fixiemng on the device. This can optimize the interface.
  • the body vibration coupling has a body vibration guide surface adapted for the material-fit, in particular adhesive Fixiemng on the device. This can optimize the interface.
  • the body vibration coupling has a body vibration guide surface adapted for the material-fit, in particular adhesive Fixiemng on the device. This can optimize the interface.
  • the body vibration coupling has a body vibration guide surface adapted for the material-fit, in particular adhesive Fixiemng on the device. This can optimize the interface.
  • the body vibration coupling has a body vibration guide surface adapted for the material-fit,
  • Fastening means adapted for reversible positive and / or non-positive mounting on the device. This too can optimize the interface to the device.
  • the body vibration coupling comprises fastening means comprising at least one screw connection. This provides a robust connection and great freedom of fixation on the device.
  • the body vibration coupling comprises fastening means comprising at least one rivet, in particular blind rivet (see Pop rivet). It has been found that a rivet can easily ensure a very stable, surface contacting attachment. This type of attachment also has the advantage that body vibrations are hardly or not noticeably dissipated.
  • the body vibration coupling comprises fastening means comprising at least one irreversible or reversible adhesive bond. It has been shown that a bond is very easy to perform. A bond provides in particular also the advantage that the attachment point can be largely freely selected, and that no holes or the like are required on the device.
  • the body vibration coupling has an at least sectionally planar, planar body vibration guidance surface arranged for the areal absorption and transmission of body vibrations of the device, in particular geometrically corresponding to the device.
  • the body vibration coupling has a body vibration guidance surface configured for surface contacting of the device. This allows each a suitable coupling.
  • the body vibration guide surface is rigidly connected to at least one attachment means of the body vibration coupling. This can optimize the recording and transmission of the vibrations.
  • the vibration measuring device is set up for self-sufficient detection and evaluation of body vibration measurement data from vibrations or vibrations of the body Device, in particular of vibrations with respect to at least two spatial axes, preferably from
  • the body vibration clutch is configured to detect the body vibration measurement data from vibrations with respect to at least two spatial axes, preferably vibrations with respect to all three spatial axes, non-optically via the body vibration clutch and at least one with the body vibration clutch rigidly connected
  • Body vibration sensor in particular a body vibration sensor with sensitivity in all three spatial axes, in particular microelectromechanical (MEMS-based) body vibration sensor.
  • MEMS-based microelectromechanical
  • the sensitivity with respect to all three spatial axes also has the advantage that metrological redundancy is not necessarily required. This also allows robustness and cost efficiency.
  • the body vibration sensor may be e.g. be connected by means of rigid, non-damping connecting means or connectors with the body vibration coupling or integrated or embedded therein.
  • the vibration measuring device has at least one
  • Body vibration sensor in particular an accelerometer, in particular in a relative arrangement for body vibration coupling or in a rigid relative arrangement to Whyschwingungsleit Structure, in particular coupled by means of a rigid connecting element (in particular with minimized damping, for example, a metallic connecting element).
  • the vibration measuring device has at least one
  • Body vibration sensor in particular an accelerometer set up to detect the
  • Body vibration measurement data with respect to at least two spatial axes, preferably with respect to all three spatial axes.
  • the accelerometer need not necessarily be arranged in a specific relative position in the sensor or relative to the mounting position or coupling point or attachment point;
  • Accelerometer should not be embedded in a predefined way in the sensor. Also do not have to
  • the evaluation can be focused on a temporal change of the measured values, ie on an analysis of temporal changes and difference measured values.
  • the time interval is not fixed, it can refer to a single filling process, or even to a period of several hours, days, weeks or months.
  • an accelerometer or acceleration sensor can be provided in particular:
  • the vibration measuring device has at least one body vibration sensor comprising a sound conversion unit, in particular a MEMS microphone.
  • a sound conversion unit in particular a MEMS microphone.
  • the energy absorption unit comprises at least one solar module and / or at least one piezoelectric module.
  • the supply of energy may also be caused by ambient light or e.g. take place during relative movements.
  • the vibration measuring device in particular the computing unit is set up, the manner of the transmission, in particular times for the transmission, in
  • the arithmetic unit is set up to define a transmission interval based on the energy provided by the energy absorption unit and / or based on a state of charge of the energy store.
  • the state of charge is an energetic state of the energy store, wherein the state of charge is defined based on a subdivision according to the following group: empty, state of charge at least sufficient for transmission, state of charge at least sufficient for detection and / or evaluation, state of charge at least sufficient for maintenance (connectable), full.
  • the vibration measuring device has a light sensor and is set up to quantify the amount of energy provided by the energy absorption unit or the energy flow into the energy store. This facilitates setting and optimizing the operating state of the vibration measuring device, also as a function of current environmental influences.
  • the arithmetic unit is set up to adapt a transmission interval as soon as the voltage applied to the energy store changes, in particular by setting a change rate for the voltage over the distance to a predefined / predefinable target voltage
  • Transmission interval is given. This optimizes the use of available energy and operation as a function of available energy.
  • the vibration measuring device is set up in a
  • the arithmetic unit is set up, based on a charge measurement, in particular by means of a Coulomb counter, to carry out an input / output calculation in the manner of an energy balance on the energy store. This also allows for energetic optimizations, thereby increasing the level of autarky.
  • the transmission interval (Advertisement Interval, AI) does not have to be firmly defined, but can iteratively be adapted to the energy (energy content) provided by means of the energy absorption unit or the energy store.
  • a light sensor can also be used, in particular to measure the energy that is produced in the energy absorption unit.
  • Energy storage voltage to be measured from which the state of charge / energy content can be determined.
  • the AI can be adjusted (shortened or extended) when the voltage changes.
  • the distance to the target voltage can be used to specify a rate of change with which the AI is adjusted.
  • the vibration measurement device may be placed in a deep sleep mode, or at least the transmission may be suspended, in particular until a time when energy is re-injected into the energy storage.
  • the vibration measuring device is set up, the transmission in an energy demand optimized, as "non-connectable" defined state (active state without
  • the vibration measuring device is set up to switch into a "connectable" state for configuration (condition with possibility of maintenance), in particular as a function of a current energy content of the energy absorption unit, in particular out of a deep sleep mode.
  • the vibration measuring device comprises a light sensor and is set to switch to a predefined / predefinable threshold value during irradiation in a "connectable" state, in particular for a predefined period of time, in particular as a function of a current energy flow from the energy absorption unit.
  • the vibration measurement device is arranged to switch from a deep sleep mode to a connectable state in response to at least one external influence, wherein the external influence is defined / definable at least from the following group: non-contact activation through a magnetic field, NFC
  • the vibration measuring device transmits / transmits the corresponding signal (advertisement), in particular in a state defined as "non-connectable". If the vibration measuring device is to be configured, that is to say placed in the "connectable" state, in which state a higher energy requirement exists, the light sensor can be irradiated by means of an artificial energy source, eg by means of the flashlight of a smartphone. Only when a defined lighting limit is exceeded, the vibration measuring device is set in the "connectable” state and remains in this state, for example for a minute or as long as a device is connected to it.
  • the state of the vibration measuring device is to be understood as a state which is adjustable and can be decisive for the adjustable operating behavior of the vibration measuring device
  • the state of the vibration measuring device is defined, for example based on a subdivision according to the following group:
  • the vibration measuring device can each be set up or be adjustable for at least one of the following steps: detection, evaluation, transmission.
  • an energy requirement state can be set, which energy requirement state can be a specification for the way of feeding energy and / or the manner of detecting, evaluating and / or transmitting steps, in each case adjustable by means of the arithmetic unit or by means of a corresponding computer program product or a corresponding control unit. For example, at least three for the level measurement
  • Energy demand states defined, and the (operating) state of the vibration measuring device is adjustable depending on the respective state of charge. This can avoid that the energy storage is unfavorably discharged for measurements / transmissions, which may not even be necessary. This in turn increases autarky.
  • Vibration measuring device set up for energy self-sufficient recording of vibration measurement data on a container, with an energy storage for self-sufficient energy supply of the vibration measuring device over a self-sufficient energy period of at least six months or even several years, and equipped with an energy absorption unit for feeding energy harvested from the environment into the energy storage, and further comprising a communication module coupled to the energy store for energy-autonomous wireless transmission of the vibration measurement data based on at least one communication protocol from the group of LP-WAN protocols; wherein the vibration measuring device is set up for self-sufficient detection and transmission of the vibration measurement data in the form of body vibration measurement data recorded on a solid surface of the device to be measured, wherein the vibration measurement device is adapted for self-sufficient reactive detection of
  • Vibration measurement data with respect to vibration propagation passive vibration measuring device ie without active / active generation / generation of vibrations, wherein the vibration measuring device has a computing unit and is further configured for energy self-sufficient evaluation of the detected
  • Body vibration measurement data with regard to a level of liquid or solids in an area bounded by the device interior volume, in particular exclusively based on the
  • Body vibration sensor in particular an accelerometer and is adapted to detect the body vibration measurement data from vibrations of the container with respect to at least two spatial axes x, y, z, preferably from vibrations with respect to all three spatial axes, in a non-optical manner, wherein the vibration measuring device, in particular the arithmetic unit is preferably also set up, the manner of the transmission, in particular times for the transmission and / or a transmission interval, in Define dependence on the energy content of the energy storage and / or the energy flow in the energy storage. This provides many of the aforementioned benefits.
  • a device in particular a container, with at least one energy-self-sufficient, previously described vibration measuring device attached to it, wherein the vibration measuring device is arranged on the outside of a wall of the container
  • the Device is attached, in particular without visual contact in a wall bounded by the inner volume.
  • the facilities may independently request a service, e.g. an emptying or a diagnosis or repair. This not least reduces the
  • a most advantageous position on the outside of the device can be selected individually depending on the application.
  • At least one of the aforementioned objects is also achieved by a method for energy self-sufficient operation of a vibration measuring device for energy self-sufficient provision of
  • System state information in particular level information, with respect to at least one of several system states of a device to be measured, in particular a container, by energy self-sufficient detection of body vibration measurement data at the device, in particular by means of a previously described self-powered vibration measuring device, wherein a self-sufficient power supply is provided for the purpose of providing the system state information by using at least one
  • the body vibration measurement data are transmitted energy self-sufficient wireless.
  • the detection can take place in a non-optical manner via a mechanical interface comprising a body vibration coupling, via which the vibrations can be forwarded as undamped as possible without dissipation.
  • the evaluation takes place in particular taking into account a temporal
  • the system of device and vibration measuring device can be regarded or defined as a vibration system, in which vibration system, the mechanical Intersection between the device and the vibration measuring device can be regarded as a constant, that is, as in terms of the propagation of vibrations or (body) sound not further noteworthy interface.
  • the vibration measuring device can resonate with the device or detect (body) sound waves independently, so that the evaluation on the evaluation of temporal
  • Absolute measurement data can be neglected or, compared to relative measurement data, at least subordinate to the evaluation.
  • the detection is reactive with respect to vibration propagation passive vibration measuring device without active generation of vibrations. This provides a particularly high degree of self-sufficiency.
  • the body vibration measurement data are detected in a non-optical manner, in particular exclusively in a non-optical manner, in particular by means of at least one
  • the body vibration measurement data are detected by means of the body vibration coupling in a body contacting arrangement on the outside of the device, outside of an interior volume bounded by the device, in particular without view into the interior volume.
  • the body vibration coupling in a body contacting arrangement on the outside of the device, outside of an interior volume bounded by the device, in particular without view into the interior volume.
  • Body vibration measurement data mitels detected by at least one vibrationally conductive connection to the device coupled body vibration sensor. This provides each of the aforementioned advantages.
  • the self-sufficient detection is performed in a time interval of at least ls. This also allows the detection of a time course.
  • the self-sufficient detection is performed in a time interval of a maximum of 10 seconds.
  • the self-sufficient energy acquisition is carried out at individual time intervals of a few seconds in each case, in particular 1 to 10 s, over a period of at least 1 to 6 days, weeks or months. This enables a resource-saving mode of operation.
  • a difference can also be facilitated by the fact that the individual time intervals are only a few seconds apart. For example, if a container is filled with empties (e.g., bottles) for a period of 30 seconds, the detection may be e.g. in three individual time intervals of 3s each in a comparatively small time interval of e.g. only 5s.
  • the energy-autonomous detection is initiated in a situation-initiated manner by at least one body vibration sensor of the vibration measurement device, in response to
  • the evaluation comprises a difference formation between the second
  • Body vibration measurement data This provides good resilience of the readings even under adverse conditions.
  • a decay behavior of the body vibrations is evaluated, in particular in a time interval of at least 2.5 s (seconds). This can extend the scope of the analysis.
  • a reaction time of the body vibration sensor in the range of 2 ms can be expected, ie a time which is required for switching from simple monitoring (in particular standby mode) with respect to incident vibrations into an operating mode for acquiring / recording the vibration data.
  • the energy-autonomous transmission takes place in each case after a time interval which is defined as a function of the current energy content of the energy store
  • the detection takes place by means of at least one body vibration sensor, in particular an accelerometer, arranged for detecting the body vibration measurement data with respect to at least two spatial axes, preferably with respect to all three spatial axes.
  • the detection also takes place by means of a sound conversion unit, in particular by means of a MEMS microphone.
  • the energy is fed into the energy store by means of a solar module and / or a piezoelectric module of the energy absorption unit.
  • Embodiment the manner of the transmission, in particular times for the transmission, depending on the energy content of the energy storage and / or the energy flow in the energy storage specified, in particular by means of a / the computing unit or control unit of
  • Vibration measurement device This provides each of the aforementioned advantages.
  • the evaluation and the transmission take place as a function of a
  • Energy content of the energy storage by based on a charge measurement, in particular by means of Coulomb counter set up for data collection and data provision for or in the arithmetic unit, an input / output calculation in the manner of an energy balance on the energy storage.
  • a transmission interval based on the by means of
  • Energy input unit provided energy and / or based on a state of charge of the
  • the amount of energy provided by the energy receiving unit is quantified by means of a light sensor of the vibration measuring device.
  • the transmission interval is adapted as soon as the voltage applied to the energy store changes, in particular by setting a change rate over the distance to a predefined / predefinable target voltage. In one embodiment, the
  • Vibration measuring device in an energy demand reduced deep sleep mode or suspends the transmission and / or detection at least temporarily when no energy is provided by means of the energy absorption unit.
  • an input / output calculation in the manner of an energy balance is performed on the energy store.
  • Vibration measuring device are made.
  • the transmission takes place in an energy-demand-optimized state of the vibration-measuring device that is defined as "non-connectable”.
  • the vibration measuring device is switched to configure in a "connectable" state, in particular as a function of a current energy content of the energy store, in particular out of a deep sleep mode.
  • the radiation measuring apparatus shifts into a "connectable" state (or is switched) during irradiation greater than a predefined / predefinable threshold value, in particular for a predefined period of time, in particular as a function of a current energy content of the energy store.
  • the vibration measurement device in response to at least one external influence, switches from a deep sleep mode to a connectable state, wherein the external influence is defined in particular at least from the following group:
  • the vibration measuring device may switch from a deep sleep mode to a mode for detecting the vibrations in response to occurring vibrations. Permanent monitoring for incident vibrations allows activation in response to newly occurring vibrations
  • the monitoring is independent of the step of detection.
  • At least one of the aforementioned objects is also achieved by using at least one body vibration sensor, in particular an accelerometer in an energy self-sufficient one
  • Vibration measuring device in particular an energy self-sufficient as described above
  • Vibration measuring device which is fastened by means of fastening means comprising at least one screw connection and / or at least one rivet, in particular blind rivet, and / or at least one irreversible or reversible adhesive connection in an arrangement on the outside of a device, in particular a container for detecting body vibration measurement data for evaluating a system state the device to be measured, wherein the vibration measuring device is used for energy self-sufficient reactive detection of the vibration measurement data with respect to vibration propagation passive vibration measuring device.
  • fastening means comprising at least one screw connection and / or at least one rivet, in particular blind rivet, and / or at least one irreversible or reversible adhesive connection in an arrangement on the outside of a device, in particular a container for detecting body vibration measurement data for evaluating a system state the device to be measured, wherein the vibration measuring device is used for energy self-sufficient reactive detection of the vibration measurement data with respect to vibration propagation passive vibration measuring device.
  • System state information in the form of level information relating to a container, by energy self-sufficient detection of body vibration measurement data on the device, in particular by means of a previously described self-powered vibration measuring device, wherein a self-sufficient power supply for the purpose of providing the system state information is provided by means of a
  • Energy intake unit of the vibration measuring device harvested energy from the environment and is fed into an energy store of the vibration measuring device, wherein by means of a
  • Communication module of the vibration measuring device is a self-sufficient wireless transmission of the body vibration measurement data based on at least one communication protocol from the group of LP-WAN protocols takes place; wherein an energy self-sufficient detection of the body vibration measurement data on a solid surface of the device to be measured, wherein the detection is reactive with respect to vibration propagation passive vibration measuring device without active generation of vibrations, and further wherein an energy self-sufficient evaluation of the detected body vibration measurement data with respect to the level of liquid or solids takes place in an area bounded by the container interior volume, the body vibration measurement data are energy-autonomously transmitted wirelessly, the
  • Body vibration measurement data in a non-optical manner in particular exclusively in a non-optical manner, by means of at least one body vibration sensor of the vibration measurement device adapted to detect the body vibration measurement data with respect to at least two spatial axes, preferably with respect to all three spatial axes, outside of the container are detected, wherein the self-powered Detecting in individual time intervals over a period of at least 1 to 6 days, weeks or months is carried out, wherein the evaluation of a difference between the second body vibration measurement data and
  • At least one of the aforementioned objects is also achieved by a method for energy-autonomous provision of system state information, in particular level information, with respect to at least one of a plurality of system states of a device to be measured, in particular of a container, detected by energy self-sufficient evaluation of self-sufficient energy at the device
  • Body vibration measurement data in particular by means of a previously described energy self-sufficient
  • Vibration measuring device wherein an energy self-sufficient evaluation of the detected
  • Body vibration measurement data regarding at least one system state in an interior volume bounded by the device based solely on the body vibration measurement data, in particular with respect to a level of liquid or solids in the interior volume, wherein the evaluating a difference between the second body vibration measurement data and previous, previously recorded earlier body vibration measurement data wherein the body vibration measurement data are / were detected in particular by means of a previously described method.
  • a self-sufficient energy supply for the purpose of providing the system state information can be provided by harvested by at least one energy absorption unit energy from the environment and fed into at least one energy storage, said at least one of the
  • Energy storage coupled communication module an energy self-sufficient wireless transmission of
  • Body vibration measurement data (based on at least one communication protocol) takes place; wherein an energy self-sufficient detection of the body vibration measurement data in a non-optical manner via a mechanical interface with a body vibration coupling takes place, which contacts a solid surface of the device to be measured.
  • reference values can also be detected by means of established measuring methods, in particular for the purpose of depositing detected raw data together with the reference values. It can be a self-learning
  • the calculation performed by means of the arithmetic unit can be partly carried out on the sensor level, partly on a cloud level, ie be split in terms of data volume and / or
  • This division on at least two levels is advantageous in order to also send comparatively large amounts of data in an efficient manner by means of narrowband communication methods.
  • the energy self-sufficient evaluation based on a difference formation to previous body vibration measurement data takes place in each case as a function or in dependence or at the time of a newly detected (or optionally actively initiated) vibration or vibration, in particular based on at least one self-learning algorithm, in particular with reference on at least one predefined, stored in a vibration database vibration pattern.
  • a decay behavior of the body vibrations is evaluated.
  • a distribution of the structure-borne sound measurement data and / or an exercise of the evaluation takes place on at least two levels, in particular comprising a cloud level and a sensor level.
  • At least one comparison measurement takes place, in particular by means of ultrasound or based on ultrasound measurement values, in particular for the detection of reference values, in particular permanently or simultaneously, wherein a comparison with the evaluated body vibration measurement data takes place, in particular simultaneously.
  • the body vibrations can also be evaluated based on trained pattern recognition, in particular by means of self-learning algorithms.
  • Comparative measurements in particular ultrasound measurements or evaluations are preferably carried out at most at the very beginning during a short time interval, ie not permanently, in particular in order
  • a neural network are trained, in particular in the form of a one-time training of algorithms (used / usable by the computing unit), in the beginning in a data logger phase, ie neither the final product (vibration measuring device) nor in its standard operating mode.
  • At least one of the aforementioned objects is also achieved by a computer program product configured to control a previously described method for self-powered operation of a
  • Vibration measuring device and / or set up for driving a previously described self-powered vibration measuring device wherein the computer program product is set up to control the detection, the evaluation and / or the transmission of the body vibration measurement data depending on an energy content and / or energy flow.
  • this also allows a very effective optimization of the energy balance.
  • At least one of the aforementioned objects is also achieved by a computer program product configured to evaluate body vibration measurement data acquired by a previously described method for providing system state information and / or by means of a previously described energy self-sufficient vibration measurement device, wherein the computer program product is set up, evaluating the acquired body vibration measurement data with respect to to perform at least one system state of the device to be measured by a time course of the
  • System state is closed, in particular to the system state in an area bounded by the device interior volume, in particular with regard to a level of liquid or solids in the internal volume.
  • Predicting an expected time when the internal volume will be completely filled This can e.g. be advantageous when refueling tanks.
  • the computer program product may comprise both of the characteristics described above, that is to say be set up both for controlling the method described above and for controlling the device described above.
  • the data and / or the evaluation are preferably split over at least two levels, in particular comprising a cloud level and a sensor level.
  • At least one of the aforementioned objects is also solved by a data carrier having such a computer program product stored thereon, or by a computer or a computer system or a virtual machine or at least one hardware element with it.
  • At least one of the aforementioned objects is also achieved by a computer program for providing the data described here or the method steps described here.
  • an energy self-sufficient vibration measuring device in particular an energy self-sufficient vibration measuring device, for energy self-sufficient detection of body vibration measurement data on a device to be measured in the form of a container
  • the vibration measuring device comprises at least one energy absorption unit Energy stored by energy harvested from the environment self-sufficient energy and at least one communication module energy self-wireless transmits the vibration measurement data based on at least one communication protocol, in particular from the group of LP-WAN protocols, in particular based on SigFox and / or NBIoT, and the vibration measuring device detects the body vibration measurement data in a non-optical manner at a mounting position outside a solid surface of the container, wherein the sensing is reactive with respect to vibration propagation of the passive vibration measurement apparatus without actively generating vibrations, and wherein the vibration measurement apparatus evaluates and transmits the acquired body
  • At least one of the aforementioned objects is also achieved by using a computer program product and / or a computing unit for evaluating body vibration measurement data recorded on a device in the form of a container by means of an energy self-sufficient
  • Vibration measuring device in particular an energy self-sufficient as described above
  • Vibration measuring device by inferring from a time course of the body vibration measurement data between at least a first and a second measurement on the level in the container, wherein the detection of the body vibration measurement data is reactive in respect of vibration propagation passive
  • Vibration measuring device without active generation of vibrations takes place, in particular in a previously described method, in particular for evaluating a time course of the
  • Body vibration measurement data between at least one first and one second measurement (difference formation) and / or for evaluating a decay behavior results in the aforementioned advantages.
  • Vibration measuring device or its use on a container with lid or on an open container or on a container without flap, each according to an embodiment
  • FIG. 4 is a schematic representation of a process diagram relating to individual steps of a
  • FIG. 5 is a schematic representation of a time beam for illustrating an operation of a
  • Vibration measuring device or a method performed therewith each according to a
  • FIG. 1A shows a device 1 to be measured, for example a container, on which an energy self-sufficient vibration measuring device 10 is mounted.
  • a wall 2 bounds the device and provides by means of a solid surface 2.1 a bearing or a mounting surface for the
  • Vibration measuring device 10 The wall 2 forms at least partially a lid 3. On the lid 3, a flap 4 is provided, which releases an opening 5 to the internal volume 6 of the device.
  • the device 1 is filled with a filling 7 or with filling material (fluid and / or solids) at a filling level z7 (level).
  • the device 1 rests on the ground and extends in three dimensions in the longitudinal direction x, width direction y and height direction z.
  • the movement of the flap can optionally be detected, for example optically or by means of a swivel joint sensor or the like.
  • acoustic sensors may be provided.
  • Fig. 1B shows the vibration measuring device 10 in detail.
  • a body vibration coupling 11 has a body vibration guide surface or contact surface 11.1 which can be brought into contact with the wall 2, 2.1 by attaching means 12 comprising mechanical fastening means 12a (for example screws) and / or adhesive fastening means 12b to the device 1 or wall 2 are coupled.
  • the vibration measuring device 10 further comprises at least one vibration sensor, in particular
  • Energy absorption unit 15, in particular comprising a solar module, can provide energy and charge the energy storage 17.
  • Measurement data can be stored in a data memory 19 (main memory and / or permanent memory) or at least stored temporarily.
  • a communication module 14 By means of a communication module 14, a transmission of detected vibration measurement data can take place.
  • a computer program product 20 in particular, a specification with regard to the manner of the measurements to be carried out and / or the data transmission can take place.
  • the vibration measuring device 10 may further include a
  • Charge measuring unit 15.1, in particular with Coulomb counter, and / or a light sensor 16 have.
  • the individual modules or components of the vibration measuring device 10 are in connection with a computing unit and / or control unit 18.
  • FIG. 2A shows a variant in which the vibration measuring device 10 is arranged on a lateral wall 2 of an open device 1, for example on a recycling container, well container, Settling or roll-off container.
  • Fig. 2B shows a contact surface 11.1, which is provided in combination with fastening means 12a, 12b.
  • FIGS. 3A, 3B without flap.
  • a recording of vibration measurement data takes place.
  • the step S 1 may also include activating the vibration measuring device 10, in particular from a deep sleep mode, in particular in response to newly occurring vibrations.
  • the manner of detection can be regulated in a first control point RI, in particular with regard to a time or a time duration of the detection, in particular as a function of the energy content or energy flow.
  • an evaluation of the vibration measurement data takes place.
  • the manner of the evaluation can be regulated, in particular with regard to a difference or a time course or a decay behavior.
  • a transmission of the vibration measurement data takes place, in particular as a function of the energy content of an energy store of the vibration measurement device.
  • the manner of the transmission can be regulated, in particular with regard to a point in time or a duration, in particular as a function of the energy content or energy flow.
  • a setting of the type of transmission can take place, in particular with time specifications.
  • Step S5 Energy supply (charging) by means of at least one energy absorption unit (solar module).
  • Step S5 may be independent of the further steps, or alternatively depending on e.g. in time dependence.
  • a fifth control point R5 with regard to the mode of energy absorption and / or energy supply can be coupled to the further control points RI to R4.
  • FIG. 5 indicates a time profile (t) of one of the methods described here.
  • a vibration or their detection / registration for example, justified by a thrown into a container bottle, or by an open or slammed flap.
  • an activation of the vibration measuring device 10 takes place.
  • detection takes place in particular.
  • an evaluation takes place.
  • archiving and / or selection of subsets of the recorded data takes place in particular.
  • a transmission takes place, for example, only of a subset of the data to be transmitted.
  • a further transmission takes place, for example also only of a subset of the data to be transmitted, in particular as a function of an energy content of the energy store.
  • the respective control RI to R5 can be carried out independently of the times 1, 2, 3 .... It can be a
  • Transmission interval (AI Advertisement Interval) are defined and maintained for a respective transmission time, which is independent of the individual times 1, 2, ..., for example over a time interval of a few minutes.
  • FIG. 5 shows by way of example two transmission intervals of different lengths.
  • the energy supply S5 is independent of the individual times 1, 2, 3 ...
  • vibration sensor in particular body vibration sensor, in particular accelerometer
  • AI transmission interval (Advertisement Interval)
  • R5 fifth control point in particular with regard to energy intake and / or feed

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

L'invention concerne un dispositif de mesure de vibration (10) autonome en énergie, conçu pour la détection autonome en énergie de données de mesure de vibration au niveau d'un dispositif (1), par exemple d'un conteneur, comportant un accumulateur d'énergie (17) pour l'alimentation autonome en énergie, et comportant une unité d'absorption d'énergie (15) conçue pour introduire dans l'accumulateur d'énergie de l'énergie récoltée dans l'environnement, et comportant par ailleurs un module de communication (14) raccordé à l'accumulateur d'énergie et conçu pour la transmission sans fil autonome en énergie des données de mesure de vibration sur la base d'au moins un protocole de communication. Le dispositif de mesure de vibration (10) est conçu pour la détection autonome en énergie et la transmission des données de mesure de vibration sous la forme de données de mesure de vibration de structure au niveau de la surface (2.1) du corps solide du dispositif (1) à mesurer, le dispositif de mesure de vibration présentant une unité de calcul (18) et étant par ailleurs conçu pour l'évaluation autonome en énergie des données de mesure de vibration de structure eu égard à un niveau de remplissage (z7) par un liquide ou des substances solides (7) d'un volume intérieur (6) délimité par le dispositif. Ceci permet d'assurer l'autonomie. Un autodiagnostic peut être effectué. L'invention concerne en outre des procédés et des utilisations associés.
PCT/DE2019/100061 2018-01-23 2019-01-22 Dispositif et procédé de détection autonome en énergie et de transmission de données de mesure de vibration et d'informations d'état d'un système, ainsi qu'utilisation WO2019144995A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP18401007.2A EP3514508A1 (fr) 2018-01-23 2018-01-23 Dispositif et procédé de détection autonome d'un point de vue énergétique et la transmission des données de mesure d'oscillation et des informations d'état du système ainsi qu'utilisation du dispositif
DE102018101475.9 2018-01-23
EP18401007.2 2018-01-23
DE102018101475.9A DE102018101475A1 (de) 2018-01-23 2018-01-23 Vorrichtung und Verfahren zur energieautarken Erfassung und Transmission von Schwingungsmessdaten und Systemzustandsinformationen sowie Verwendung

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DE102007045403A1 (de) * 2007-09-21 2009-05-07 Mobotix Ag Tankbehälterüberwachungsvorrichtung
DE102009028044A1 (de) * 2009-07-28 2011-02-03 Endress + Hauser Gmbh + Co. Kg Feldgerät der Prozessautomatisierung
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LU102216B1 (en) 2020-11-24 2022-05-24 Innovationlab Gmbh Smart waste container system
WO2022112340A1 (fr) 2020-11-24 2022-06-02 Innovationlab Gmbh Système de contenant de déchets intelligent

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