EP3936285A1 - Dispositif de réception et procédé de détection de l'objet de travail - Google Patents

Dispositif de réception et procédé de détection de l'objet de travail Download PDF

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Publication number
EP3936285A1
EP3936285A1 EP21183077.3A EP21183077A EP3936285A1 EP 3936285 A1 EP3936285 A1 EP 3936285A1 EP 21183077 A EP21183077 A EP 21183077A EP 3936285 A1 EP3936285 A1 EP 3936285A1
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EP
European Patent Office
Prior art keywords
worker
sensors
sensor
receptacle
inductive
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP21183077.3A
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German (de)
English (en)
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EP3936285C0 (fr
EP3936285B1 (fr
Inventor
Thomas MÜLTNER
Katrin SCHINDLER
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Hoffmann Engineering Services GmbH
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Hoffmann Engineering Services GmbH
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Publication date
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Publication of EP3936285A1 publication Critical patent/EP3936285A1/fr
Application granted granted Critical
Publication of EP3936285C0 publication Critical patent/EP3936285C0/fr
Publication of EP3936285B1 publication Critical patent/EP3936285B1/fr
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Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H3/00—Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments

Definitions

  • the invention relates to a receiving device, the receiving device having receptacles for worker's items, the receptacles being individually adapted to the shape of the worker's items.
  • the invention also relates to the use of at least one sensor in a recording device.
  • the invention relates to a method for determining the presence and/or position of at least one worker's object in a receptacle of a recording device provided for the worker's object.
  • a merchandise management system is known by means of which the removal and replacement of worker items in a container is monitored.
  • merchandise management systems can be helpful in determining whether worker items have been put back in their place after use or whether they have been lost or stolen. For example This is very important when aircraft are being repaired as there can be serious consequences should a work item be left inside an aircraft turbine.
  • foam inserts are usually used in which recesses are provided which match the shape of the worker item and the size of the worker item. An operator can thus very easily determine whether the worker's objects are all recorded in their recordings. However, this is time-consuming. In addition, this may not be safe enough for some applications, since it is possible that similar worker objects are placed in receptacles that can be confused with the worker objects actually intended for this purpose.
  • GB 2 406 092 B now envisages using sensors to determine the presence or absence of worker items in a container.
  • a recording device for receiving worker items, especially tools where the receiving device has receptacles for worker objects, the receptacles being individually adapted to the shape of the worker objects, which is further developed in that in the area or near the receptacles of the receiving device at least one capacitive sensor and/or one inductive sensor for determining the presence and /or the position of at least one worker's object is provided in a recording that is individually adapted for the worker's object.
  • the recording device has in particular a capacitive and/or an inductive sensor for determining the presence and/or position of at least one worker's object in a recording that is individually adapted for the worker's object.
  • the capacitive sensor and/or inductive sensor used according to the invention can be referred to as an electronic proximity sensor within the scope of the invention.
  • Electronic proximity sensors generate an electrical or electromagnetic field in the working area in which an object is to be detected.
  • the presence or type and/or location or position of the object changes a defined or specifiable electromagnetic field and can thus be detected by the sensor.
  • Electronic proximity sensors By using an electronic proximity sensor is very accurate to determine the presence and / or location of at least one worker object, such as a tool, in a for the worker object individually adapted recording possible.
  • Electronic proximity sensors have the advantage that they can detect worker objects in the recording even if there is no direct line of sight. In contrast to optical sensors or cameras, for example, they can be mounted below a recording, for example a foam insert. Unlike magnetic sensors, which only respond to magnetic material, electronic proximity sensors can detect all typical materials used in tools or in the workshop environment and respond particularly well to conductive and metallic materials.
  • the capacitive sensor is preferably designed in such a way that an electric field is generated in the area of the receptacle.
  • the presence or absence of materials within the generated electrical field changes the electrical capacitance, which is used as a measurand.
  • the size, position and material properties of the object introduced affect the capacitance reading.
  • non-metallic objects can also be detected, since they change the capacitance value due to a dielectric constant or permittivity that is different from air.
  • the current capacity is measured by at least one sensor arranged in the vicinity of the worker's object receptacle, so that it can be recognized very precisely whether the worker's object or the material from which the worker's object is made is placed in the receptacle provided for it.
  • a capacitive sensor is also understood to mean, in particular, a one- or two-dimensional arrangement of capacitive sensor elements, such as those used in linear and radial sliders (1D) and in trackpads or touchscreens (2D), as well as a so-called proximity sensor (3D).
  • capacitive sensors that are made up of several segments in a different way, as well as simple capacitive buttons such as those used in control elements for household electronics, are also among the capacitive sensors. This includes both analog and digital sensor variants.
  • a capacitive sensor is a sensor that has two electrodes that are spaced apart from one another in one plane and that measure a change in permittivity and/or the change in electrical capacitance of an overall arrangement that is caused by changes in an electrical field in the vicinity of the electrodes is formed.
  • a corresponding capacitive sensor can have, for example, an inner electrode in a circular shape and a ring-shaped second electrode arranged around the inner circular electrode.
  • a coating may be applied to these electrodes to protect the electrodes. The coating itself has essentially no influence on the function of the sensor.
  • This also makes it possible to determine the dielectric constant of the work object or to determine the material of the work object, for example by evaluating the signals from a number of sensor components or a number of sensors. It is preferably possible to check whether the worker's item brought in and its parts represent the same worker's item in terms of material, size and/or position as, for example, in a reference measurement. Training can thus be carried out to determine the presence and/or position of at least one worker's object in a receptacle of a recording device provided for the worker's object.
  • Capacitive sensors also have the option of adjusting the sensitivity, traditionally using a potentiometer or, in more modern sensors, using an integrated circuit.
  • At least one inductive sensor is additionally or alternatively provided in the recording device.
  • materials can be detected well that are conductive and thus exert an influence on an alternating magnetic field, such as, for example, metallic materials, in particular ferrous materials or steel.
  • Inductive sensors use the effect of electromagnetic induction. If electrically conductive material (the object or the tool or the worker's item) gets into the alternating magnetic field formed by the inductive sensor, eddy currents are generated in the object according to the law of induction. These eddy currents draw energy from the sensor's oscillating circuit and can thus be measured via the oscillating circuit quality. The eddy current losses depend on various parameters, which can thus be detected by the sensor: distance and position of the object, its dimensions, shape, electrical conductivity and permeability. Inductive sensors are known for their high sensitivity and very good signal-to-noise ratio. In this way, the presence of an electrically conductive object, such as a tool or part of a tool (such as a hammer head), can be determined very safely and reliably at the location provided for it in the receiving device.
  • a plurality of capacitive sensors and/or inductive sensors are preferably provided. If several capacitive sensors and/or inductive sensors are preferably arranged on a flat sensor device, in particular a foil or foils and/or a printed circuit board or printed circuit boards, it is particularly possible to detect multiple parts of a worker object or multiple worker objects at the same time.
  • the capacitive sensors and/or inductive sensors of the flat sensor device lie in a plane that is preferably arranged parallel to the bottom of the receiving device.
  • the sensors can also, in particular partially, be vertical be arranged to the bottom of the receiving device.
  • the multiple capacitive sensors and/or inductive sensors are preferably arranged or connected in the form of at least one matrix.
  • the matrix can be adapted to the position of the receptacles in the receptacle device or can be a matrix that can be used for different receptacle devices.
  • a matrix may have the sensors in straight rows and columns and/or have straight rows and staggered columns and/or have a meandering arrangement of the sensors.
  • the arrangement of the multiple sensors can also be adapted to the arrangement of the recesses in the receiving device.
  • the receiving device is or comprises a molded foam or a plastic plate.
  • the molded foam can be, for example, a polyethylene foam or ESD foam from Hoffmann SE, item no. 95 3201 31 or 97 3235 15.
  • the molded foam can also be an LDPE foam or a polyoxymethylene copolymer (POM C).
  • POM C polyoxymethylene copolymer
  • PP-H polypropylene homopolymer
  • PE plastics can also be used.
  • the external dimensions of the recording device are preferably defined by the molded foam or the plastic plate, optionally supplemented by a flat sensor device.
  • Components in particular the sensors, can be attached to rigid circuit boards, flexible circuit boards and/or flexible foils.
  • the assembly can be done with all standard methods, eg with SMD components or metallic or other films or coatings.
  • the components can also be printed, for example or be made of films by etching. They can be cast or covered with a layer to ensure stability, protection against mechanical influences, insulation, heat dissipation and/or privacy.
  • Movably attached electrodes for adjusting the capacitance, inductance and/or the sensitivity or the position of the field for adaptation to specific worker objects are also conceivable.
  • SNR signal-to-noise ratio
  • interference immunity composite with EMC specifications, electromagnetic compatibility
  • sensitivity e.g., sensitivity to noise suppression.
  • Certain measures can be used for optimization, e.g. smoothing capacitors and particularly stable supply voltage and/or input voltage smoothing as well as filter stages or other hardware or software measures for noise suppression. It may also be preferable to electrically ground or shield the housing or surfaces of the receptacle or other components.
  • the bottom of the receiving device is electrically conductive, with in particular an electrical connection of measuring electronics of the at least one capacitive sensor being electrically connected to the bottom, with the bottom in particular being grounded.
  • the sensor device preferably lies parallel to the floor and/or is integrated in the receiving device, in particular flat.
  • a worker's object is in particular a tool and For example, assembly material and small items such as screws, nails, bolts, resistors, cables, plugs, sockets understood. Worker items also include personal protective equipment such as safety goggles, protective gloves, hearing protection, helmets and the like. Mounting material can also be understood to mean boxes or containers for mounting material, for example containers for milling cutters or drills or containers for screws. In particular, worker objects are tools, such as screwdrivers, hammers, torque wrenches, cordless screwdrivers and the like.
  • the sensors are preferably components of the recording device, ie they are incorporated in the material of the recording device, for example. However, they can also be attached to the outside of the material from which the receiving device otherwise consists or is made or which is comprised by the receiving device.
  • the sensors can therefore also be arranged under the receiving device, above and/or next to the receiving device and in contact with the receiving device. In particular, the sensors are then also part of the receiving device within the scope of the invention.
  • an inductive sensor is a sensor that generates a magnetic field, with the inductive sensor being designed as an oscillating circuit.
  • the presence of a worker's item in a receptacle of the fixture causes an eddy current to be generated in a conductive portion of the worker's item, thereby extracting energy from the resonant circuit of the inductive sensor.
  • the quality of the oscillating circuit is checked so that it can be determined whether the correct worker's object is present in the holder provided for this purpose.
  • Objects close to the sensor that are not part of the detection e.g. B. parts or the bottom of the container, neighboring containers, a metal wall of the tool cabinet or conductive ESD foams can also influence the electric and/or electromagnetic field.
  • the design and position of the sensor components can be adjusted accordingly for optimization, e.g. so that the generated field does not reach the area of the interfering bodies.
  • a defined distance between the sensors and the conductive base of the container e.g. using a spacer layer, e.g. made of molded foam or plastic, or using spacers, can significantly improve functionality.
  • Interference that is fixed or always present during the measurement can be taken into account by a reference measurement.
  • a training process can be carried out with an empty holding device, with a holding device that is only filled with individual tools or groups of tools and/or with a holding device that is completely filled. It can also make sense to carry out further reference measurements under different environmental conditions such as changed temperature or humidity, since these also have an influence on the switching behavior of the sensors.
  • One or more comparison variables are determined from this reference measurement/these reference measurements. If the presence and/or position of a worker object is to be detected, the current measured value or the current measured values are compared with the reference measurement or the reference measurements. The respective differences can be used to determine whether the worker item intended for this recess is actually included.
  • this can be determined by means of physical relationships (e.g. checking the material parameters, responding or evaluating individual sensors and specific positions, etc.). Consistency checks, checks based on rules and/or correlation analyzes are preferably also possible for the above-mentioned methods.
  • the consistency checks can be used to check whether the various measured values actually match one another.
  • the correlation analyzes can be used to check whether the time curves of the measured values of the sensors match, i.e. correlate with each other.
  • the rules that can be used in the test here can take into account the order of removal and replacement of worker items.
  • the overlapping of electromagnetic fields can be minimized by targeted design and/or targeted arrangement and/or shielding.
  • closely adjacent oscillators with offset frequencies can be provided and/or these can be operated alternately and/or one after the other in order to avoid coupling and thus unreliable measurement behavior.
  • a worker object storage device comprising a container, which is accommodated by a receiving device of the type according to the invention or preferred.
  • the container can have a base on which the receiving device is placed.
  • the container can be a drawer of a tool storage cabinet or a worker's item storage cabinet.
  • the object is also achieved by using at least one capacitive sensor and/or inductive sensor in a recording device, which is preferably as described above, for determining the presence and/or position of at least one worker object, in particular a tool, in a recording of the worker object individually adapted Recording device, in particular a container of the worker item storage device, released.
  • the object is achieved by a method for determining the presence and/or position of at least one worker object in a receptacle of a recording device provided for the worker object, the receptacle provided for the worker object being individually adapted to the worker object, with a capacitive sensor and/or or at least one measured value is recorded by an inductive sensor, with the at least one measured measured value being compared with a predefinable target value, which in particular corresponds to a measured value in which the at least one worker object is placed in a specified target position in the receptacle provided for the at least one worker object, the presence and/or position of the at least one worker object in the recording provided for the worker object being determined on the basis of the comparison. If several sensors are provided, the measured values of the sensors are compared with the target value provided for the respective sensor. A target value is therefore assigned to each sensor.
  • the measured values of the capacitive sensor and/or the inductive sensor are preferably measured over a period of time, resulting in a measurement curve.
  • the measurement curve or the measurement curves is or are, for example, a measurement curve over time.
  • the measurement curve of the capacitance value can be recorded independently of the measurement curve of the inductive sensors.
  • a 3-dimensional measurement can also be carried out, namely the measurement of both the capacitive sensors and the inductive sensors in a time-dependent manner.
  • individual areas for example sensors that belong to specific recesses and/or containers and/or container parts, can also be measured separately as a measurement curve. It is thus also a multi-dimensional measurement and evaluation possible.
  • a plurality of capacitive sensors and/or inductive sensors are preferably provided, by means of which the presence and/or position of a plurality of worker objects in for the worker objects respectively intended shots is determined. This makes it possible, for example, to determine the presence and/or position of a plurality of worker objects in a recording device with a number of recordings.
  • a missing worker object or an incorrect worker object placed in a receptacle is preferably detected and a signal that represents this is output or emitted.
  • a sequence for removing and/or placing worker objects in receptacles provided for this purpose is preferably specified, with a signal being generated if the sequence is not adhered to.
  • This enables efficient worker guidance. For example, a light signal can be used to show the worker which worker object the worker should remove from the receiving device at a specific point in time. If this doesn't happen or the wrong worker item is removed, there will be an error message.
  • the same can also be implemented for the insertion of worker items. Alternatively or additionally, every removal and/or every insertion of worker objects can also be logged.
  • the position and/or presence of worker objects is monitored in recordings provided for this purpose.
  • the invention provides an intelligent detection sensor system for objects, preferably made of different materials with locally fixed storage positions, for example in rigid foams.
  • the stored objects or tools or worker's items can consist of a wide variety of materials and can vary greatly in their properties such as weight, dimensions, material density and conductivity.
  • worker objects or tools can be made of different plastics, metals or combinations thereof. It should be possible to reliably identify worker objects, such as tools, in a receptacle of a recording device.
  • receiving devices can be provided in steel drawers of a worker's item storage device, for example a cupboard.
  • the container is, for example, a steel drawer into which a receiving device, for example a hard foam with receptacles for work objects, is introduced.
  • weight detection can also be carried out or image detection can be carried out using a camera system. It is also possible that worker objects, in particular tools, were provided with RFID tags and that these RFID tags could be recognized by a corresponding sensor system. This promotes the accuracy of determining the presence and/or position of worker objects, in particular tools, in the recordings provided for this purpose.
  • a planar sensor system or a planar sensor device is in every container, for example in every drawer or each Rigid foam insert, ie per recording device provided.
  • the sensor device can be arranged parallel to the underside of the receiving device.
  • the sensor device can also be arranged in an intermediate layer in the receiving device.
  • the receiving device can be constructed in the manner of a sandwich.
  • a fixed structure of the sensors for example in a grid form, in which the arrangement and size can be adapted depending on the size of the container or the receiving device and/or the worker's objects, makes it possible to deliver precise measurement results.
  • the sensors can be arranged according to the arrangement of the recordings or can be arranged following a general grid structure. More sensitive sensors may be used for small worker items or worker items made of material or materials that have lower conductivity. The sensors can therefore be adapted to the material properties of the worker's objects.
  • the determination of the presence and/or position of the worker items in the receptacles provided for the worker items is preferably recorded at the moment when the container with the receiving device is fully inserted into the worker item storage device, for example in that in the event that the container has a drawer is, the drawer is fully inserted into the worker item storage device. In this way, manipulation during the measurement can be avoided.
  • Worker guidance can preferably be used.
  • provision can be made for optical identification of the worker items arranged in a receiving device, for example by means of light, so that the worker knows which worker item, for example which tool or which safety material such as safety goggles or which consumable material such as a screw, for example, should be removed from the receiving device.
  • the protective goggles can first be illuminated or an LED can be lit in the mount for the protective goggles so that the worker knows that the protective goggles must be put on first, so that a tool such as a cut-off grinder can be illuminated later in a second step, so that this can then be removed by the worker.
  • a comparison can be made as to whether the correct worker items are being used in the correct order, for example whether they are being taken out of the exception device and put back in again. In this way, reliable worker guidance can be implemented, which issues warnings if the worker does not adhere to the process sequence.
  • every work record can be logged, for example when a spare part is installed or a module is installed. When installing an assembly, for example in an aviation context, this can be very important. Provision can be made here, for example, for each dismantled part to be placed in a recess provided for this purpose, so that it can be measured according to the invention whether everything is correctly configured in sequence.
  • an inspection case or an inspection set or a prepared recording device with integrated electronics or prepared for electronics that can be integrated can be provided.
  • the inspection case or the inspection set then has at least one holding device according to the invention.
  • the quality of a bond can depend on different waiting times.
  • the quality can be significantly improved here by controlling the worker.
  • the process time specifications can be determined and adjusted.
  • Evaluation electronics are preferably provided for evaluating the measurement signals from the sensors.
  • FIG. 12 schematically shows a three-dimensional representation of a worker item storage device 10.
  • the worker item storage device 10 has five containers designed as drawers, which can be pulled out of the worker item storage device 10.
  • FIG. A monitor 21 is also provided, in which the presence and/or position of worker objects in a recording device can be displayed visually.
  • FIG. 12 schematically shows a plan view of a worker item storage device 10 in which a container 11 in the form of a drawer has been pulled out.
  • a receiving device 12 is introduced, for example in the form of a rigid foam.
  • the receiving device 12 has receptacles 14 designed as recesses, into which worker objects 15 can be placed. It is also a worker item, such as a hammer, in 2 placed on the receiving device 12 and not in the intended receptacle 14.
  • the worker's object 15 is smaller than the recording 14 shown underneath, so that this worker's object would not be suitable for the recording itself.
  • An inductive sensor which is arranged in the area of the receptacle 14, specifically where the hammer head would lie, would supply a measured value by means of which it could be recognized that an incorrect worker's item was in the recording 14 would have been inserted.
  • FIG. 3 shows a schematic sectional view of a part of a container 11.
  • This is, for example, a metal drawer with a metal base 13.
  • a sensor device 18 of the receiving device 12 is arranged on the metal base 13, in which in this case capacitive sensors 16 and an inductive sensor 17 are introduced.
  • the sensor device 18 can be a capacitive distance sensor or a capacitive proximity switch. A distance between the conductive floor and the sensors arranged parallel thereto can be ensured or made possible by a foam board or device made of foam or plastic.
  • the function of the proximity switch is based on the change in the electrical and/or electromagnetic field in the vicinity of the sensor electrode.
  • the sensor works, for example, with an RC oscillator circuit.
  • the capacitance between the active electrode and the electrical ground potential is measured.
  • the capacitance between two electrodes applied to the sensor device can also be measured.
  • the capacitance changes when a substance or material approaches the active zone of the sensor.
  • the capacitance value is measured by the sensor.
  • the sensor device 18 is integrated into the receiving device 12 in the lower area, ie attached below in this example.
  • the receiving device 12 can consist of rigid foam or comprise rigid foam.
  • Recesses 14 in the form of recesses are introduced into the receiving device 12 and are adapted to the worker objects 15 provided for this purpose.
  • a top view of a sensor device 18 with various capacitive sensors 16 and inductive sensors 17 is shown schematically.
  • the sensors have specific arrangements, for example in the form of a matrix 20 of sensors 16, 17.
  • the matrix 20 of sensors 16, 17 is such that the sensors 16, 17 are arranged in rows and columns that are connected to one another are aligned.
  • the matrix 20 of sensors 16, 17 is arranged in such a way that the rows are aligned and the columns are offset in relation thereto.
  • the matrix 20 of sensors 16, 17 is arranged in such a way that the sensors 16, 17 are arranged in a meandering manner.
  • some matrices 20 of sensors 16, 17 are shown with the same sensors, such as capacitive sensors.
  • Other arrays of sensors may be configured such that the different sensors alternate, or different areas have one type of sensor and other areas have a different type of sensor.
  • the meandering arrangement is shown in such a way that the capacitive and inductive sensors alternate.
  • the sensor device can have exclusively capacitive sensors and the inductive sensors can be attached to the side of the receiving device or each laterally into the receptacles or in the vicinity of the receptacles in the receiving device.
  • the sensor device can also only have inductive sensors, which are available, for example, in different sizes and are arranged regularly. They can also be arranged according to the position of the receptacles.
  • inductive sensors and capacitive sensors are conceivable, in which both are arranged in a grid.
  • the grids can have a clear assignment to each other, eg is the center of the working field of the capacitive sensors is shifted by a fixed amount in a fixed direction in relation to the center of the working field of the inductive sensors.
  • Both can also each have the same center point. It is also conceivable that the center always has a fixed relation only in the xy plane.
  • the advantage of such an arrangement is that one or more inductive measured values can be assigned to each capacitance value, for example all neighboring points. This makes it possible to evaluate independent measurements relating to the same recess or even a specific point within the same recess.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics And Detection Of Objects (AREA)
EP21183077.3A 2020-07-06 2021-07-01 Dispositif de réception et procédé de détection de l'objet de travail Active EP3936285B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020117787.9A DE102020117787A1 (de) 2020-07-06 2020-07-06 Aufnahmevorrichtung und Werkergegenstanderkennungsverfahren

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EP3936285A1 true EP3936285A1 (fr) 2022-01-12
EP3936285C0 EP3936285C0 (fr) 2024-02-14
EP3936285B1 EP3936285B1 (fr) 2024-02-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4331776A1 (fr) * 2022-08-31 2024-03-06 Hazet-Werk Hermann Zerver GmbH & Co. KG Dispositif de fourniture d'outils

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DE19954267A1 (de) * 1999-07-30 2001-08-02 Univ Ilmenau Tech Verfahren zur automatischen Einstellung der Schaltschwelle kapazitiver sowie induktiver Näherungssensoren
GB2406092B (en) 2003-09-17 2005-10-19 Coplan Ltd Inventory control system
EP1808275A2 (fr) * 2006-01-11 2007-07-18 Gedore-Werkzeugfabrik Otto Dowidat KG Rangement d'outils
EP2727688A2 (fr) * 2012-10-31 2014-05-07 WZV - Werkzeugvertriebs GmbH Système de mise en ordre pour outils, éléments de machines ou analogues
US20140358740A1 (en) * 2008-08-08 2014-12-04 Snap-On Incorporated Image-based inventory control system with automatic calibration and image correction
WO2018063476A1 (fr) * 2016-09-29 2018-04-05 Stanley Industrial & Automotive, Llc Système de détection d'outils à de multiples emplacements
US20180095138A1 (en) * 2016-10-03 2018-04-05 Snap-On Incorporated Rechargeable tool and battery status monitoring in an automated tool control system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954267A1 (de) * 1999-07-30 2001-08-02 Univ Ilmenau Tech Verfahren zur automatischen Einstellung der Schaltschwelle kapazitiver sowie induktiver Näherungssensoren
GB2406092B (en) 2003-09-17 2005-10-19 Coplan Ltd Inventory control system
EP2014424A1 (fr) * 2003-09-17 2009-01-14 Coplan Limited Système de contrôle d'inventaire, procédé et conteneur
EP1808275A2 (fr) * 2006-01-11 2007-07-18 Gedore-Werkzeugfabrik Otto Dowidat KG Rangement d'outils
US20140358740A1 (en) * 2008-08-08 2014-12-04 Snap-On Incorporated Image-based inventory control system with automatic calibration and image correction
EP2727688A2 (fr) * 2012-10-31 2014-05-07 WZV - Werkzeugvertriebs GmbH Système de mise en ordre pour outils, éléments de machines ou analogues
WO2018063476A1 (fr) * 2016-09-29 2018-04-05 Stanley Industrial & Automotive, Llc Système de détection d'outils à de multiples emplacements
US20180095138A1 (en) * 2016-10-03 2018-04-05 Snap-On Incorporated Rechargeable tool and battery status monitoring in an automated tool control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4331776A1 (fr) * 2022-08-31 2024-03-06 Hazet-Werk Hermann Zerver GmbH & Co. KG Dispositif de fourniture d'outils
WO2024046646A1 (fr) * 2022-08-31 2024-03-07 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Dispositif de fourniture d'outil

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DE102020117787A1 (de) 2022-01-13
EP3936285B1 (fr) 2024-02-14

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