EP4561816A1 - Dispositif de radiocommunication pour des objets mis en pile verticale - Google Patents
Dispositif de radiocommunication pour des objets mis en pile verticaleInfo
- Publication number
- EP4561816A1 EP4561816A1 EP23744185.2A EP23744185A EP4561816A1 EP 4561816 A1 EP4561816 A1 EP 4561816A1 EP 23744185 A EP23744185 A EP 23744185A EP 4561816 A1 EP4561816 A1 EP 4561816A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radio frequency
- rotation
- arm
- communication device
- axis
- 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.)
- Pending
Links
Classifications
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
- G06K7/10415—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM
- G06K7/10425—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM the interrogation device being arranged for interrogation of record carriers passing by the interrogation device
- G06K7/10435—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM the interrogation device being arranged for interrogation of record carriers passing by the interrogation device the interrogation device being positioned close to a conveyor belt or the like on which moving record carriers are passing
- G06K7/10445—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM the interrogation device being arranged for interrogation of record carriers passing by the interrogation device the interrogation device being positioned close to a conveyor belt or the like on which moving record carriers are passing the record carriers being fixed to further objects, e.g. RFIDs fixed to packages, luggage, mail-pieces or work-pieces transported on a conveyor belt
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10356—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2241—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in or for vehicle tyres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
- H01Q19/17—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07758—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
- G06K19/07764—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag the adhering arrangement making the record carrier attachable to a tyre
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10118—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the sensing being preceded by at least one preliminary step
Definitions
- the present invention relates to the field of logistics management of connected or connectable goods and in particular for goods of the pneumatic envelope type, whether fixed to a rim.
- the device communicates by radio frequency wave comprising a transponder which is capable of capturing the radio frequency signal emitted, of interpreting it and of restoring to this signal an action which can be for example, the emission of another radio frequency signal.
- the objects of the invention which follow aim to improve the quality of the radio frequency communication of several material goods placed in a stack vertically, in order to reduce the cost price linked to the use of this material good while by ensuring robustness and reliability in radio frequency communication between these physical assets and external systems.
- Everything is done within the framework of the flow of piles of material goods without modification of the piles if they conform to expectations.
- the first objective is to read all the identifiers from the stack.
- the second objective is to be able to identify the order of the identifiers in the stack or even the direction of placement of the object in the stack when the electronic device of the object is placed on one side or the other of the stack. object according to the direction of the object corresponding to that of the stack.
- the invention relates to a radio frequency communication device capable of communicating with a radio frequency transponder with a linear polarization antenna, linked to a geometrically stable object, said device being capable of accommodating at least two of the said objects placed next to each other vertically in order to constitute a stack which is circumscribed in a cylinder and the polarization of the radiofrequency transponder of the geometrically stable object being directed mainly in a circumferential direction relative to the axis of revolution of the cylinder confined to the stack of at least two objects, said device comprising:
- a base capable of receiving the stack of objects, the normal of which defines a vertical direction
- At least one radio frequency communication reader capable of generating or reading electrical signals to or from a radio frequency antenna
- At least a first arm whose main dimension extends in a first direction, preferably the first direction being collinear with the vertical direction;
- the at least one first arm comprising at least two radio frequency antennas spaced from one another in the first direction.
- the device is characterized in that the device comprises a system for rotating around an axis of rotation collinear with the vertical direction capable of putting into relative rotation a part of the base capable of receiving the stack of objects arranged vertically the stack of objects arranged vertically relative to the at least one first arm, in that each of said at least two radio frequency antennas is connected to a single port of the at least one radio frequency communication reader, in that the at least two radio frequency antennas have an elliptical, preferential linear polarization, with an electric field E whose radial component is less than a quarter of the norm of the electric field E and the circumferential component is greater than 0.7 times the norm of the electric field E in the associated cylinder reference to the axis of rotation of the rotation system, in that two radio frequency antennas contiguous in the first direction constituting a pair of antennas, each pair has radio frequency antennas which are located on either side of at least one first arm, in that the antennas located on the same side of at least one first arm are spaced apart by a distance
- Material goods can be equipped with communication devices within their structure or on their surface.
- the material goods are axisymmetric around an axis of revolution, even if the angular position of the communication device within the material good can be defined, the goods are placed in a pile without an angular positioning being carried out between them so as not to waste cycle time for this purpose. Indeed, the axisymmetry of material goods tends to make the azimuthal positioning of material goods between them trivial.
- the fact that an angular scan is undertaken between the material goods placed in a pile and the first arm by the rotation system guarantees the reading of all the transponders of the material goods.
- the rotation system may consist of rotating the stack of objects alone, or the first arm alone, or rotating the two objects differently, for example, with a different direction of rotation or different speeds of rotation. As long as each geographical area of the material assets is observed for the same period of time during the reading phase, the reading of all the radio frequency transponders associated with all the material assets placed in the stack is ensured fairly.
- each of the radio frequency antennas is connected to a single port of at least one radio frequency communication reader allows communication between the antennas radio frequencies of the communication device and the radio frequency transponders of the material goods is not sequential, which saves communication time between the communication device and the stack of objects.
- the contiguous radio frequency antennas are located on either side of the first arm, which ensures that the radiation patterns of the two antennas will overlap little or not at all. What is required is that two antennas located on the same side of the first arm are spaced apart from each other by a distance of in the first direction so that their radiation patterns do not disturb each other. .
- the radio frequency transponders of material goods have a linearly polarized antenna which is directed mainly in a circumferential direction relative to the axis of revolution of the cylinder circumscribed to the battery, that is to say that the electric field E of the antenna has a radial component in the cylindrical mark associated with the axis of rotation of the rotation system whose amplitude is less than a quarter of the standard of the electric field E.
- the polarization axis of the radio frequency antennas of the device it is necessary to make the polarization axis of the radio frequency antennas of the device with those of the radio frequency transponders of the material goods.
- the polarization axis of the radio frequency antenna of the device will be substantially collinear with the polarization axis of the transponder of the material asset, which ensures quality radio frequency communication.
- the communication energy of the device is optimized to communicate with the transponders of material assets due to the collinearity between the axis of the linear antenna and the electric field E, which guarantees better communication between the antennas, this which makes it possible to apply a greater relative rotation speed between the pile of material goods and the arm equipped with the antennas while maintaining good communication quality.
- the radio frequency antenna of the device has an elliptical type polarization, preferably linear as long as the circumferential component is the majority.
- the polarization of the antenna which is its adaptation to the electric field to optimize the energy exchanged between the antenna and the electric field, should not be confused with the directivity of the antenna which makes it possible to concentrate the energy towards a spatial area around the antenna.
- the communication device comprises a system for positioning the at least one first arm relative to the axis of rotation of the rotation system defining a trajectory of the at least one first arm.
- the communication device can adapt whatever the diameter of the cylinder circumscribed to the material goods placed in a pile while ensuring an acceptable distance between the radio frequency transponders of the material goods rotated around the axis of rotation of the rotation system and the radio frequency antennas of the communication device. But, the communication device can also adapt whatever the angle of the cone of the pile of material goods by an inclination between the first direction of the arm and the vertical direction of the base while ensuring a similar distance between the radio frequency transponders material goods forming the cone and the radio frequency antennas of the communication device.
- the trajectory followed by the arm to position itself relative to the stack can for example be a translation, a rotation around an axis or the combination of a translation and a rotation around an axis.
- the positioning system of the at least one first arm comprises a system for guiding the translation of the at least one first arm in a direction of translation, preferably the direction of translation intersects the axis of rotation of the system of translation. rotating. -1-
- the most basic movement of the first arm will be a translation in a single direction.
- this direction intercepts the axis of rotation of the rotation system, which permanently ensures that the axis of polarization of the radio frequency antennas of the device will always remain predominantly circumferential with respect to the axis of rotation of the rotation system. rotation.
- the device comprises an actuator system capable of setting in motion the at least one first arm relative to the trajectory imposed by the positioning system.
- the communication device comprises a limiter, preferably comprising a sensor, capable of stopping the movement of the first arm according to the trajectory imposed by the positioning system when a threshold has been reached.
- the device includes a limiter capable of stopping the movement of the first arm during the trajectory imposed by the positioning system.
- the limiter which can be equipped with a sensor or includes an open loop, assesses the proximity of the first arm to the material goods placed in the pile via a value.
- This sensor can be a force cell measuring the contact force between the arm and the material goods, a proximity sensor measuring the distance between the arm and the exterior surface of the vertical stack.
- an open loop it can be a pneumatic or hydraulic or electric or magnetic setpoint.
- the communication device comprises a centering system relative to the axis of rotation of the rotation system.
- the centering system comprises at least a second vertical arm linked radially to at least a first arm relative to the axis of rotation of the rotation system.
- the stack of material goods and/or the first arm is positioned relative to the axis of rotation of the rotation system.
- the positioning of the first arm relative to the stack is made at an angular position relative to the axis of rotation allowing higher speed angular scans of the material stack or first arm.
- This centering system can consist of a series of vertical arms including in particular the first arm whose concentric movement is uniform with respect to the axis of rotation.
- the concentric movement of the arms tends to position the stack of material goods so that the axis of revolution of the cylinder circumscribed by the stack coincides with the axis of rotation of the rotation system.
- the second arm it is sufficient for the second arm to extend vertically at least over the material good located at one of the ends of the stack.
- the physical asset located near the base has the highest radial dimension to ensure the stability of the vertical pile and the second arm is located near the base at that time.
- This arm system will have the ability to move the pile of material goods onto the base.
- the rotation system is integrated into the base of the communication device.
- the communication device comprises a means of movement integrated into the base defining a trajectory passing through the axis of rotation of the rotation system capable of moving the stack of material goods received by the device according to the trajectory.
- the at least one first arm comprises a reflector element located radially externally to said at least one first arm relative to the axis of rotation of the rotation system.
- This reflective element that is to say reflecting electromagnetic waves, makes it possible to interrogate the radio frequency transponders of material goods located towards the battery and not externally to the battery. In this way, the risks of wrongly interrogation of radio frequency transponders of material assets located on another battery or associated with the environment in which the communication device is placed are minimized.
- the reflecting element is arranged radially externally relative to at least the two radio frequency antennas at a distance e, preferably the distance e being less than 0.5 times the wavelength linked to the frequency of the device.
- a distance e preferably the distance e being less than 0.5 times the wavelength linked to the frequency of the device.
- the communication device comprising at least one other first arm positioned at an identical radial position and a different azimuthal position of the at least one first arm relative to the axis of rotation of the positioning system in rotation, preferably the first arms are equally distributed around the axis of rotation,
- the communication device comprises two first arms located diametrically opposite to the axis of rotation of the rotation system.
- the first two antennas, dipole and slot are linearly polarized antennas, the axis of the dipole antenna or the axis of the slot defining the polarization axis of the antenna.
- the next two, loop and patch are circular or elliptical polarized antennas.
- the invention also relates to the use of the communication device with objects placed in a pile included in the group comprising a pneumatic envelope, a wheel, a wheel valve such as a TPMS type valve (acronym in English of Tyro Pressure Monitoring system), an element made of elastomeric materials of the assembled assembly.
- TPMS type valve acronym in English of Tyro Pressure Monitoring system
- the pneumatic casing may comprise an RFID tag (acronym in English for Radio Frequency IDentification) located in the sidewall of the tire and oriented circumferentially relative to the natural axis of rotation of the pneumatic casing.
- the wheel and the valve of the mounted assembly can also be equipped with radio frequency transponders whose communication antenna is oriented circumferentially relative to the natural axis of rotation of the wheel which coincides with the axis of rotation of the casing pneumatic for a mounted assembly.
- the invention also relates to a conveyor line capable of transporting objects placed in a pile along a given path comprising a communication device capable of communicating to the radio frequency transponders linked to these objects.
- the radio frequency communication device is placed between two conveyors, the first conveyor, placed upstream along the given path, comprising a centering system capable of positioning the stack of objects relative to the width of the communication device radio frequency.
- the integration of a radio frequency communication device along the conveyor line makes it possible to control the stack of objects during transport of the stack with minimal immobilization of the stack. objects, which ensures a competitive cost price. And in the event of non-compliance of the stack, this also makes it possible to remove a stack of non-compliant objects from the flow by integrating the radio frequency communication device between two conveyors of the conveyor line: an optimization of the identification function , ordering of the products and possibly their direction of installation is carried out. Centering the battery in the direction transverse to the trajectory defined by the radio frequency communication device ensures that the battery is predisposed in relation to the communication device.
- the means of centering the communication device consists of making the axis of revolution of the cylinder circumscribed to the stack of material goods coincide with the axis of rotation of the rotation system included in the communication device.
- the dimensioning of this centering system is minimal, which reduces costs.
- FIG. 1 presents a perspective view of a first radio frequency communication device according to the invention
- FIG. 2 presents a perspective view of a second radio frequency communication device according to the invention
- - Fig. 3 presents a radiation diagram of a radio frequency antenna
- - Fig. 4 presents a pile of material goods including pneumatic envelopes equipped with RFID tags (acronym in English for Radio Frequency IDentification),
- - Fig. 5 shows a perspective view of a conveyor line comprising a radio frequency communication device.
- Fig. 1 presents a first radio frequency communication device 1.
- This comprises a base 2 defining a vertical direction 21 according to the normal to the exterior surface of the base towards which are located the other elements of the radio frequency communication device 1 which corresponds to the surface in contact with the pile of material goods.
- the device 1 also comprises a first arm 4 whose main direction defines a first direction 22. This first direction 22 is collinear with the vertical direction 21.
- the device 1 comprises a system 5 for rotating the pile of material goods, integrated here in the base 2 of the device 1, which is represented here by a cross animated by a rotational movement around an axis of rotation 31.
- This cross 5 is animated also a translation movement in the vertical direction 21 in order to be located below or above the fixed external surface of the base 2 depending on the phases of communication between the device 1 and the pile of material goods. This thus allows the stack of material goods to come to rest or to move in translation relative to the fixed part of the base 2 of the device 1.
- the first arm 4 is equipped with radio frequency antennas distributed in two groups located on either side of the first arm 4.
- the first group includes the antennas 10a, 10b and 10c
- the second group includes the radio frequency antennas lOd and 10th.
- These radio frequency antennas 10a, 10b, 10c, lOd and 10e are galvanically connected to a radio frequency reader 3.
- the radio frequency reader 3 transmits and receives the radio signals towards or from the radio frequency antennas.
- the physical connection of the radio frequency antennas 10a, 10b, 10c, lOd and 10e to the radio frequency reader 3 is done via ports on the radio frequency reader 3, each of the antennas being connected to a single port.
- the radio frequency antennas 10a, 10b, 10c and lOd, 10e of each group are spaced apart, two by two, from each other by a distance of so that the height of the stack of material goods is covered by the radio radiation from the group of radio frequency antennas.
- the heights of the antennas between the two groups are differentiated, which makes it possible to improve the discrimination of the radio frequency transponders of the objects in the stack in the vertical direction 21.
- the first arm 4 is equipped of a reflector element 15 located radially externally to the radio frequency antennas 10a, 10b, 10c, lOd and 10e of the first arm 4.
- the distance e between the antennas 10a, 10b, 10c, lOd and 10e and the reflector element is less than the half-wavelength associated with the communication frequency of the device 1.
- This reflector element 15 prevents radioelectric radiation radially externally to the reflector element 15 relative to the axis of rotation 31.
- the distance e between the reflector element 15 and the radio antennas 10a, 10b, 10c, lOd and 10e guarantees to improve the radio power radiated towards the stack of material goods.
- the antennas of the device are elliptically polarized, preferably linearly polarized, so that the main component of the emission electric field is carried by the circumferential direction in the cylindrical mark associated with the axis of rotation 31 of the rotation system 5.
- the translational movement of the stack of material goods relative to the device 1 is ensured by means 12 for moving the stack.
- This movement means 12, integrated into the base 2, is made up here of a series of rollers parallel to each other. Each roller is driven by a rotational movement around an axis, the axes here are collinear with each other.
- a trajectory 121 of the pile of material goods is constructed using the rollers.
- This trajectory 121 passes here through the axis of rotation 31 of the rotation system 5.
- This means of movement 12 easily makes it possible to guide the stack of material goods on the base 2 so as to position the stack of material goods relative to the axis of rotation 31 of the rotation system 5 of the device 1.
- the rotation system 5 rises above the external surface of the base 2 so as to carry the stack of material goods and thus to separate it from the external surface of the base 2.
- the rotation system 5 then begins to rotate around its axis of rotation 31 to rotate the pile of material goods
- Fig. 2 presents a second radio frequency communication device 1 according to the invention.
- This device 1 always includes a base 2 capable of carrying the pile of material goods. It also includes a first arm 4 equipped with radio frequency antennas 10a, 10b, 10c, lOd, 10e and lOf which are connected via connection ports on a radio frequency reader 3. But, here, the first arm 4 is extends mainly in a first direction 22 which is not necessarily collinear with the vertical direction 21 defined by the external surface of the base 2, the surface having to accommodate the pile of material goods.
- the first arm 4 is equipped with radio frequency antennas distributed in two groups located on either side of the first arm 4.
- the translation guidance 7 makes it possible to uniquely position the radio frequency antennas 10a, 10b, 10c, lOd 10e and lOf of the first arm 4 so that the direction of polarization of these antennas 10a, 10b, 10c, lOd 10e and lOf is mainly circumferential with respect to the axis of rotation 31 of the rotation system 5.
- the radio frequency antennas 10a, 10b, 10c, lOd 10e and lOf are dipole type antennas half-wave with linear polarization, the main direction of which extends circumferentially relative to the axis of rotation 31.
- the movement of the first arm 4 via the positioning system 6 is automated by an actuator system. And this actuator system controls both the rotation of the first arm 4 around the axis of rotation 41 and the translation of the first arm 4 along the direction of translation 71 in order to ensure the proximity of the first arm 4 relative to the pile of material goods.
- the device 1 includes a limiter which controls the animation of the first arm 4.
- this limiter comprises a sensor determining the distance between the sensor and the pile of material goods in order to stop the movement of the first arm 4 according to the measurement provided by this sensor in relation to a threshold which would reflect the collision of the first arm 4 with the pile of material goods.
- This sensor is a proximity sensor of an electromagnetic, optical nature or a contact sensor.
- the translation movement of the stack of material goods relative to the device 1 is ensured by a means of movement 12 of the stack.
- This means of movement 12, integrated into the base 2, is made up here of a series of rollers parallel to each other; it could also be a sliding plate.
- Each roller is driven by a rotational movement around an axis, the axes here are collinear with each other.
- a trajectory 121 of the pile of material goods is constructed using the rollers.
- This trajectory 121 passes here through the axis of rotation 31 of the rotation system 5.
- This movement means 12 easily makes it possible to guide the pile of material goods on the base 2 so as to position the pile of material goods relative to the axis of rotation 31 of the rotation system 5 of the device 1.
- the device 1 here comprises a centering system 9 making it possible to properly position the stack of material goods relative to the rotation system 5, more precisely to make the axis of revolution of the cylinder circumscribed to the stack coaxial. of material goods with the axis of rotation 31 of the rotation system 5.
- the centering system 9 comprises four of the second arms arranged equitably on either side of the means of movement 12 of the stack of material goods.
- the four second arms are linked together in order to ensure a tightening movement around the axis of rotation 31 of the rotation system 5 so that the distance between each arm and the axis of rotation 31 of the rotation system 5 is identical.
- the second arms are animated by a translation movement in two directions of translation via grooves provided on the external surface of the base 2. The two directions of translation intersect at the level of the axis of rotation 31 of the rotation system 5.
- this centering of the stack of material goods guarantees that the distance between the first arm 4 and any material point of the stack of material goods located at a height H of the stack in the vertical direction 21 is identical.
- the radio frequency communication between the radio frequency transponders of the material goods and the radio frequency antennas 10a, 10b and 10c, lOd, 10e and lOf of the first arm 4 is equitable.
- Fig. 3 illustrates the main lobe 51 of radio radiation of the radio frequency antenna 10a of the first arm of the radio frequency communication device in a plane defined by the polarization axis 50 of the radio frequency antenna 10a and the first direction 22 of the first arm.
- the radio frequency antenna 10a is a half-wave dipole antenna.
- the radio frequency antennas being located along the first direction of the first arm per group, it is necessary that the spacing between two contiguous antennas along the first direction of each group, that is to say the antennas located on the same side of the first arm, or less than the sum of the distances D associated with the radio frequency antennas.
- Fig. 4 presents a pile 200 of material goods.
- the material goods here are four assembled assemblies of which only the pneumatic envelopes 210a, 210b, 210c and 210d are represented.
- the envelopes are stacked on top of each other in the direction defined by the axis 202.
- This stack 200 is therefore inscribed in a straight cylinder with axis 202 whose diameter corresponds to the outermost diameter of the pneumatic envelopes 210a, 210b, 210c and 210d.
- the stack 200 is placed on a base 201 facilitating the movement of the stack 200.
- the base 201 is equipped on the face opposite to that which is in contact with the stack 200 with means of movement such as casters, for example, not shown in Fig. 4.
- the radio frequency communications device does not necessarily need a means of moving the stack of physical assets.
- Each pneumatic envelope 210a, 210b, 210c and 210d is equipped with a radio frequency transponder 211a, 211b, 211c and 21 Id which is in the present case an RFID tag consisting of an electronic chip coupled to a radio antenna of the type half-wave dipole antenna which is a linearly polarized antenna.
- the radio antenna extends along its main dimension circumferentially relative to axis 202.
- FIG. 5 shows a conveyor line 100 of material goods placed in a pile comprising a radio frequency communication device 1.
- the device 1 corresponds to that of FIG. 1.
- This conveyor line 100 defines a path 110 that the piles of material goods travel from a starting point to an arrival point.
- This path 110 extends here over the three elements of the conveyor line 100, that is to say a first conveyor 101a located upstream of the path 110, a second conveyor 101b located downstream of the path 110 and the communication device radio frequency 1 located between the two conveyors 101a and 101b.
- the two conveyors 101a and 101b are here equipped with drive rollers whose main direction is perpendicular to the path 110.
- the first conveyor 101a comprises a centering system 102 in order to direct the piles of material goods towards the middle of the conveyor 101a according to the width and thus prepare the passage of the stack of material goods at the level of the radio frequency communication device 1.
- This radio frequency communication device Ise located in the middle of the width of the first conveyor 101a, the centering system is equipped here with two track retractors 102 symmetrical with respect to path 110.
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- General Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2207779A FR3138544A1 (fr) | 2022-07-28 | 2022-07-28 | Dispositif de radiocommunication pour des objets mis en pile verticale |
| PCT/EP2023/070637 WO2024023115A1 (fr) | 2022-07-28 | 2023-07-25 | Dispositif de radiocommunication pour des objets mis en pile verticale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4561816A1 true EP4561816A1 (fr) | 2025-06-04 |
Family
ID=83593941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23744185.2A Pending EP4561816A1 (fr) | 2022-07-28 | 2023-07-25 | Dispositif de radiocommunication pour des objets mis en pile verticale |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4561816A1 (fr) |
| JP (1) | JP2025528043A (fr) |
| FR (1) | FR3138544A1 (fr) |
| WO (1) | WO2024023115A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3164027A1 (fr) * | 2024-06-28 | 2026-01-02 | Compagnie Generale Des Etablissements Michelin | Procédé et dispositif de détermination d’ordre d’objets placés en pile |
| FR3166215A1 (fr) * | 2024-09-12 | 2026-03-13 | Compagnie Generale Des Etablissements Michelin | Procédé et dispositif de vérification de la conformité du sens de pose d’objets placés en pile |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7336167B2 (en) * | 2005-02-09 | 2008-02-26 | United Parcel Service Of America | Interrogating RFID transponders during rotation of palletized items, systems and methods |
| JP2006252181A (ja) * | 2005-03-10 | 2006-09-21 | Matsushita Electric Ind Co Ltd | 情報読取装置、電子識別票、及び情報読取方法 |
| ES2285905B1 (es) * | 2005-08-24 | 2008-10-01 | Aida Centre, S.L. | Metodo e instalacion para la monitorizacion del contenido de un recinto de almacenamiento. |
| KR101099915B1 (ko) * | 2009-10-27 | 2011-12-28 | 엘에스산전 주식회사 | Rfid 기반의 리더기 |
| SG10201610224YA (en) * | 2016-10-04 | 2018-05-30 | Crest Tech Limited | Method and system for wireless tag reading |
| JP6957286B2 (ja) * | 2017-09-15 | 2021-11-02 | 東芝テック株式会社 | 読取装置及び読取方法 |
-
2022
- 2022-07-28 FR FR2207779A patent/FR3138544A1/fr active Pending
-
2023
- 2023-07-25 JP JP2025504491A patent/JP2025528043A/ja active Pending
- 2023-07-25 WO PCT/EP2023/070637 patent/WO2024023115A1/fr not_active Ceased
- 2023-07-25 EP EP23744185.2A patent/EP4561816A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3138544A1 (fr) | 2024-02-02 |
| JP2025528043A (ja) | 2025-08-26 |
| WO2024023115A1 (fr) | 2024-02-01 |
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