Method and device for determining the order of objects placed in a stack

Abstract

The invention relates to a method for determining the order of objects, which method comprises: - a sub-step (E1), wherein the stack of objects is rotated on a device for rotating with respect to the antennas, and for each identifier of each object, and for each antenna, the one or more events Aj,k are measured in which the identifier is detected by the antenna during the rotation lasting at least one duration (D), each duration (D) corresponding to at least one revolution (Q); - a sub-step (E2), wherein a parameter YIDi(Aj,k) is computed as a function of the one or more events Aj,k, and the formula (I), (I) is computed, where H Aj is a weighting proportional to the position of the antenna vertically; - a third sub-step (E3), wherein the order (ORD) of the objects corresponding to the identifiers IDi is determined as a function of the increasing or decreasing direction of the weighted averages m(ID!), and an information item (INF) indicating the order (ORD) is provided at an output.

Description

[0001]DESCRIPTION Method and Device for Determining the Order of Objects Placed in a Stack The invention relates to a method and device for determining the order of objects placed in a stack. The field of the invention concerns the logistics management of connected or connectable goods, and in particular for goods of the pneumatic tube type, whether or not attached to a rim. Systems are known in which vertically spaced radio frequency antennas detect the RFID tags of objects in the stack. One of the problems with these systems is to reliably and automatically determine the order of the objects in the stack, regardless of the positioning of an identifier-emitting device on each of these objects. Indeed, some systems can give different results depending on the positioning of the identifier-emitting devices relative to each other in the stack.This is inherent to the fact that the radio frequency antennas are vertically spaced. Thus, the identifiers of each object in the stack may not be sufficient to deduce the vertical order of the objects, particularly in cases where an identifier is incorrectly detected or where the positioning of the identifier-emitting devices relative to each other in the stack is random. An objective of the invention is to obtain a method and a device for determining the order of objects placed in a stack, which solves the aforementioned problem by refining the information obtained from the object identifiers. To this end, a first object of the invention is a method for determining the order of objects placed vertically one on top of the other to form a vertical stack of objects, each object carrying at least one device for emitting an object identifier (IDi).the IDi identifiers being different from each other, the method comprising a step in which the vertical stack of objects is brought in front of an IDi identifier detection device, comprising at least one set of N radio frequency antennas Aj, which have positions spaced at least vertically apart from each other, to determine a vertical order of the objects in the vertical stack, where N is a natural number greater than or equal to 4, characterized in that said step for determining the vertical order of the objects in the vertical stack comprises the following substeps: a first substep, in which the vertical stack of objects is rotated on a rotation device to perform a relative rotation of the vertical stack of objects around a vertical axis with respect to the N radio frequency antennas A, j according to at least one round, and we measure by the detection device, for each ID identifier iof each object and for each radio frequency antenna A j , the event(s) A j,k ID detection i of each object by the radio frequency antenna A j during the relative rotation for at least a duration, each duration corresponding to at least one revolution, a second sub-step, in which a parameter ^^^^^^^,^^ is calculated by a computer based on the detection event(s) Aj,k, and the computer calculates for each identifier IDi of each object a weighted average m(IDi) according to the following equation: ∑ ^ ^ ^^^^^^^^^^,^^ ∙ ^^^where ^ ^^ is a weighting antenna A jLet j be a natural number from 1 to N. A third sub-step involves the computer determining the vertical order, from bottom to top, of the objects corresponding to the IDs IDi in ascending order of the calculated weighted averages m(IDi), or the vertical order, from top to bottom, of the objects corresponding to the IDs IDi in descending order of the calculated weighted averages m(IDi). A physical output provides information indicating the vertical order of the objects, as determined by the computer. Thanks to the invention, determining the order of the objects in the stack is independent of the angular position of the IDs on the objects, while ensuring that all IDs are detected. The invention thus ensures greater accuracy in determining the order of the objects in the stack.According to one embodiment of the invention, the parameter ^^^^^^^,^^ calculated as a function of the or events Aj,k of detection is the number ^^^^^^^^^,^^ of events Aj,k of detection of the identifier ID. i of each object by the radio frequency antenna A j . According to one embodiment of the invention, the parameter ^^^^^^^,^^ calculated as a function of the detection event(s) Aj,k is the sum (^^^^^^^^ = ∑^ ^^^^^^^,^^ , over the detection events Aj,k, of the powers ^^^^^^^,^^ with which the identifier IDi of each object is detected by the radio frequency antenna Aj in each detection event Aj,k. According to one embodiment of the invention, the parameter ^^^^^^^,^^ calculated as a function of the detection event(s) Aj,k is equal to ^^^^^^^^, where ^^^^^^^^ is equal to 1 when ^^^^,^^^^^ ≥ ^ ∙ ^^^^^,^ ^^^^^^^^,^^^, where ^^^^^^^,^^ is the power with which The IDi identifier of each object is detected by the radio frequency antenna A jin each event A j,k detection, XIDi(Aj) is equal to at least one value greater than or equal to 0 and less than 1 when ^^^^^^^,^^ < ^ ∙ Maximum power ^^^^,^^^^^ on Ajet radio frequency antennas B is a prescribed threshold, which is greater than 0 and less than 1. According to one embodiment of the invention, in the first substep the N radio frequency antennas A j are activated simultaneously by the computer for the duration in radio frequency reception mode corresponding to the relative rotation of the vertical stack of objects around the vertical axis with respect to the N radio frequency antennas A j during the duration. According to one embodiment of the invention, in the first sub-step the N radio frequency antennas A jare activated one after the other by the computer, each for the duration in radio frequency reception mode corresponding to the relative rotation of the vertical stack of objects around the vertical axis with respect to the N radio frequency antennas A j during the duration. According to one embodiment of the invention, in the first substep several subgroups of radio frequency antennas A j are activated by the computer one after the other, each for the duration in radio frequency reception mode corresponding to the relative rotation of the vertical stack of objects around the vertical axis with respect to the N radio frequency antennas A j during the duration, the subgroups of the radio frequency antennas A j being disjoint from each other. According to one embodiment of the invention, each device for emitting the ID identifier i Each object contains a radio frequency transponder capable of transmitting the ID identifier iThe object's ID detection device comprises at least one reader, capable of emitting the radio frequency transponder interrogation signal during relative rotation for at least one revolution during the first sub-step. The reader is connected to N radio frequency antennas Aj and is capable of reading, at each detection event, the object's ID, which was emitted by at least one of the radio frequency transponders in response to the interrogation signal and received by at least one of the radio frequency antennas Aj. According to one embodiment of the invention, each radio frequency transponder is an RFID tag in which the ID is i is recorded, the reader being at least an RFID reader. According to one embodiment of the invention, each device for emitting the ID identifier iEach object includes a sender ID identifier. i of the object. According to one embodiment of the invention, the object comprises a wheel, a tire attached to the wheel, and a pressure sensor for the tire and / or temperature sensor for the tire, the pressure sensor for the tire and / or temperature sensor being attached to the wheel or the tire, each device emitting the identifier ID i Each object includes a sender ID identifier. iof the object forming part of the pressure and / or temperature sensor of the pneumatic envelope. According to one embodiment of the invention, each radio frequency antenna Aj is capable of detecting said object identifier IDi from each radio frequency transponder and said object identifier IDi from each transmitter of the object identifier IDi. According to one embodiment of the invention, the distance between the highest radio frequency antenna Aj and the lowest radio frequency antenna Aj is at least 90% of the height of the vertical stack of objects. According to one embodiment of the invention, each object has a height greater than or equal to a prescribed height, and the positions of the N radio frequency antennas Aj are vertically spaced from each other by a spacing height less than half the prescribed height. According to one embodiment of the invention, the relative rotation is performed over an integer number of turns.According to one embodiment of the invention, during the first sub-step, the measurement of the event(s) Aj,k by the detection device, when the rotation device rotates the vertical stack of objects with respect to the N radio frequency antennas A at a constant relative rotation speed. j A second object of the invention is a device for determining the order of objects for implementing the order determination method as described above, the determination device comprising an IDi identifier detection device, comprising at least one set of N radio frequency antennas A j , which have positions spaced at least vertically apart from each other, characterized in that the determination device further comprises a rotation device for performing a relative rotation of the vertical stack of objects around a vertical axis with respect to the N radio frequency antennas Aj according to at least one round, the detection device being configured to measure, for each ID i of each object and for each radio frequency antenna A j , the event(s) A j,k ID detection i of each object by the radio frequency antenna A j during the relative rotation for at least a duration, each duration corresponding to at least one revolution, the determination device further comprising a calculator configured to calculate a parameter ^^^^^^^,^^ as a function of the detection event(s) Aj,k and to calculate for each identifier IDi of each object a weighted average m(IDi) according to the following equation: ∑ ^^^^ ^^^ ^ ∙ ^ ^ ^^^ ^ ,^ ^^ where ^ ^^ is a weighting antenna A jj is a natural number from 1 to N, the computer being configured to calculate the vertical order, from bottom to top, of the objects corresponding to the identifiers IDi in ascending order of the weighted averages m(IDi) that have been calculated, or the vertical order, from top to bottom, of the objects corresponding to the identifiers IDi in descending order of the weighted averages m(IDi) that have been calculated. The determination device further comprises a physical output, which is connected to the computer and is capable of providing information indicating the vertical order of the objects, having been determined by the computer. The invention will be better understood upon reading the following description, given solely by way of non-limiting example with reference to the figures below of the accompanying drawings. [Fig. 1] represents a flowchart of a determination method according to the invention. [Fig.[Fig. 2] represents a schematic perspective view of an example of a stack of objects to which the determination method and the determination device according to the invention can be applied. [Fig. 3] represents a schematic perspective view of a determination device according to one embodiment of the invention. [Fig. 4] represents a schematic perspective view of a conveyor line of which the determination device according to one embodiment of the invention is a part. [Fig. 5] represents a flowchart of the determination method according to a first embodiment of the invention. [Fig. 6] represents a flowchart of the determination method according to a second embodiment of the invention. [Fig. 7] represents a flowchart of the determination method according to a third embodiment of the invention. [Fig. 8] represents a schematic perspective view of a determination device according to another embodiment of the invention.Figure 9] represents a schematic, enlarged perspective view of a determination device according to another embodiment of the invention. Examples of methods for determining the order of objects according to embodiments of the invention are described in more detail below with reference to Figures 1, 5, 6 and 7, and examples of devices for determining the order of objects according to embodiments of the invention. As illustrated by way of example in Figure 2, the objects (or material goods) 201, 202, 203, 204 are placed vertically one on top of the other to form a vertical stack 200 of these objects 201, 202, 203, 204. The number M of objects 201, 202, 203, 204 in the stack 200 is a prime natural number greater than or equal to 2. Of course, the invention would also work with M=1.Each object 201, 202, 203, 204 is equipped with one (or more) respective devices 2010, 2020, 2030, 2040 for issuing an IDi identifier (for example, respectively: ID1, ID2, ID3, ID4) of the object 201, 202, 203, 204. Each respective IDi identifier is unique and serves to identify the object 201, 202, 203, 204 that bears it. The respective IDi identifiers are different from one another. The index i is used to designate the respective IDi identifier and the respective object 201, 202, 203, 204 identified by that respective IDi identifier. The index i is a second natural number from 1 to M. The same number (one or more) of device(s) 2010, 2020, 2030, 2040 respectively can be provided for the emission of the identifier IDi on each object 201, 202, 203, 204. Each identifier IDi can be a string of characters, or other.A memory 40 (for example, a database), for example, of the computer 4, may be provided in which are recorded, for all objects 201, 202, 203, 204, the associations of a unique name of each object 201, 202, 203, 204 to the IDi identifier of each device 2010, 2020, 2030, 2040 for emitting this IDi identifier provided on each object 201, 202, 203, 204. The names are different from each other. For example, as shown in Figure 2, each of the objects 201, 202, 203, 204 has a wheel R on which is mounted a pneumatic tire P (which may be in the inflated or deflated state). The diameters of the pneumatic envelopes P are arranged horizontally in the stack 200. The pneumatic envelopes P are of revolution around a central geometric axis 210, which is vertical in the stack 200. The central geometric axis 210 is parallel to the vertical direction Z.By way of example, in memory 40, the name of object 201 may be "front left tire", the name of object 202 may be "front right tire", the name of object 203 may be "rear left tire", and the name of object 204 may be "rear right tire", in the case where objects 201, 202, 203, and 204 are to be used to equip a four-wheeled motor vehicle. In Figures 3, 4, 8, and 9, the determination device 1000 includes a device 3 for detecting the identifiers IDi. The detection device 3 includes a set 31 of N radio frequency antennas Aj, which have positions spaced at least vertically apart from each other, or a first set 31 of N radio frequency antennas A. j and a second set of 32 N other radio frequency antennas A j as shown. Of course, more than two sets of 31 N radio frequency antennas could be provided. j Games 31 and 32 of N radio frequency antennas A jcan be distributed around the axis 212 of rotation, described below. Each set 31 or 32 is designated globally below by the N radio frequency antennas Aj. N is a third natural number greater than or equal to 4, or greater than or equal to 8, or greater than or equal to 10 or greater than or equal to 16. As shown in figures 3, 4, 8 and 9, in each set 31 and / or 32, the N radio frequency antennas Aj are, for example, arranged one above the other. Of course, in other embodiments not shown, the N radio frequency antennas Aj could be horizontally offset from each other in each set 31 and / or 32. The index j is used to designate the radio frequency antenna Aj of each set 31 or 32. and The index j is a fourth natural number from 1 to N.Thus, in Figure 1, the determination process includes a step E in which the vertical stack 200 of objects 201, 202, 203, 204 is brought in front of the device 3 for detecting the identifiers IDi to determine the order in which the objects 201, 202, 203, 204 are arranged along the vertical direction Z in the vertical stack 200. The determination device 1000 includes a rotation device 11 allowing the vertical stack 200 of objects 201, 202, 203, 204 to undergo at least one rotation around a vertical axis 212 of rotation with respect to the N radio frequency antennas Aj. The vertical axis 212 of rotation is parallel to the vertical direction Z. For example, in the case of Figure 2, the vertical axis 212 of rotation is parallel to the central geometric axis 210 of the stack 200 or coincides with the central geometric axis 210 of the stack 200.For example, in Figures 3, 4, 8, and 9, the rotation device 11 is positioned in front of the N radio frequency antennas Aj and is configured to rotate the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation in front of the N radio frequency antennas Aj to complete at least one relative rotation. The rotation device 11 includes a rotating lower platform 110 that can be rotated about the vertical axis 212 of rotation relative to a fixed base 111. The N radio frequency antennas Aj are positioned outside the rotation device 11. Of course, in other embodiments not shown, the rotation device 11 could be configured to rotate the N radio frequency antennas A. jaround the vertical axis 212 of rotation and around the vertical stack 200 of objects 201, 202, 203, 204 to make the complete at least one relative rotation. Of course, in other embodiments not shown, the rotation device 11 could be configured to rotate both the N radio frequency antennas Aj and the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation to make the complete at least one relative rotation. The detection device 3 is configured to measure the detection event(s) Aj,k of each IDi identifier of each object 201, 202, 203, 204 by each radio frequency antenna Aj during the relative rotation for at least one (or more) duration D, each duration D corresponding to the turn(s) of relative rotation.Each detection event Aj,k corresponds to the radio frequency antenna Aj detecting the identifier IDi of one of the objects 201, 202, 203, or 204 over time and is a temporal measurement associated with the identifier IDi, which was detected by the radio frequency antenna Aj or via the radio frequency antenna Aj. Each detection event Aj,k can be a time-domain power peak, received by the radio frequency antenna Aj and associated with the identifier IDi, which was detected by the radio frequency antenna Aj or via the radio frequency antenna Aj. The index k is a fifth natural number used to designate each detection event Aj,k, which was obtained by the radio frequency antenna Aj of each set 31 or 32 or via the radio frequency antenna Aj of each set 31 or 32.Thus, the determination process comprises a first sub-step E1 of step E, during which the vertical stack 200 of objects 201, 202, 203, 204 is rotated by the rotation device 11 to make the vertical stack 200 of objects 201, 202, 203, 204 complete the number Q of rotations around the vertical axis 212 of rotation with respect to the N radio frequency antennas Aj, and during which the detection device 3 measures, for each identifier IDi of each object 201, 202, 203, 204 and for each radio frequency antenna Aj, the detection event(s) Aj,k of the identifier IDi of each object 201, 202, 203, 204 by the radio frequency antenna Aj during the rotation relative during the duration(s) D, each duration D corresponding to the number Q of relative rotation(s). The number Q of relative rotation(s) is greater than or equal to 1. The number Q of relative rotation(s) can be greater than or equal to 2.In one embodiment of the invention, the number Q of turns of relative rotation can be a sixth natural integer greater than or equal to 1. The number Q of turns of relative rotation can be a sixth natural integer greater than or equal to 2. The detection device 3 is configured to pick up the ID identifiers. i objects 201, 202, 203, 204, obtained by the event(s) Aj,k of their detection by each radio frequency antenna Aj during the relative rotation for the duration(s) D, each duration D corresponding to the turn(s) of relative rotation. During the first substep E1, the measurement of the event(s) A j,kDetection by device 3 can occur when the rotation device 11 rotates the vertical stack of objects 201, 202, 203, 204 at a constant or stabilized relative speed, with respect to the N radio frequency antennas Aj. This prevents discrimination between one area and another. This is desirable when the number Q of wheel revolutions is limited and is an integer. Conversely, if the number Q of revolutions is high, this number Q does not necessarily have to be an integer, as a real number Q is sufficient. The determination device 1000 includes a computer 4 configured to calculate, during the second sub-step E2 of step E, a parameter ^^^^^^^,^^ as a function of the detection event(s) Aj,k. The rotation device 11 can be controlled by the computer 4.The parameter ^^^^^^^,^^ decreases with the respective distance of the transmitting device 2010, 2020, 2030, 2040 of the identifier IDi from the radio frequency antenna Aj in each detection event Aj,k. For example, the detection event Aj,k can occur when the identifier IDi passes closest to the radio frequency antenna Aj or in a prescribed position relative to the radio frequency antenna Aj during the relative rotation for the duration(s) D, each duration D corresponding to the number Q of turns of relative rotation, i.e., when the identifier IDi is in the near field within the reception range of the radio frequency antenna Aj. This makes it possible not to interrogate all the transmitting devices 2010, 2020, 2030, 2040 in a single angular position of the stack 200 around the axis 212 of rotation and to obtain a diversified reception power of the transmitting devices 2010, 2020, 2030, 2040 by the radio frequency antennas Aj.Each radio frequency antenna Aj has a principal pointing direction of its main radiation lobe (in its radiation pattern), which represents the direction in which the radio frequency antenna A. j is capable of receiving the most power emitted from all directions emanating from the radio frequency antenna Aj in the three dimensions of space. According to one embodiment of the invention, the radio frequency antennas A j are oriented in the same way, that is to say, the main pointing directions of the radio frequency antennas Aj are parallel and in the same direction, so as not to favor one of the radio frequency antennas A j in the parameter ^ ^^^ ^^ ^,^ ^. Implementations of this parameter ^^^^^^^,^^ are described below. Calculator 4 is configured to calculate during the second sub-step E2 of step E, for each identifier IDi of each object 201, 202, 203, 204, a weighted average m(IDi) according to the following equation: ∑ ^ ^ ^^^^^^^^^^,^^ ∙ ^^^where ^ ^^ is a weighting antenna A j along the vertical direction Z. The weighting ^ ^^ This could be, for example, the difference in height of the antenna position Aj relative to a height reference, which could be, for example, that of the rotation device 11, or something else. The weighted average m(IDi) is thus an estimate of the vertical position of each identifier IDi of each object 201, 202, 203, 204 along the Z direction. The invention therefore has the advantage of increasing the weighted average m(IDi) i) weighting of antennas Aj with a large parameter ^^^^^^^,^^ of reception of the identifier IDi relative to the weighting of antennas Aj with a smaller parameter ^^^^^^^,^^ of reception of this identifier ID i This improves the estimated vertical position of each ID identifier. i of each object 201, 202, 203, 204 by the weighted average m(IDi). Thus, for example, in the case of ID identifiers iformed in figure 2 by the identifiers ID1, ID2, ID3, ID4 respectively of objects 201, 202, 203, 204, calculator 4 calculates m(ID1) for the identifier ID1 of the object 201 which has been detected, m(ID2) for the identifier ID2 of the object 202 which has been detected, m(ID3) for the identifier ID3 of the object 203 which has been detected, m(ID4) for the identifier ID4 of the object 204 which has been detected. Calculator 4 calculates in this case: m(ID1) < m(ID2) < m(ID3) < m(ID4). Calculator 4 is configured to determine during the third sub-step E3 of step E the vertical ORD order, from bottom to top, of the objects 201, 202, 203, 204 corresponding to the IDs IDi according to the ascending direction of the weighted averages m(IDi) that have been calculated (or the vertical ORD order, from top to bottom, of the objects 204, 203, 202, 201 corresponding to the IDs IDi according to the descending direction of the weighted averages m(IDi) that have been calculated).Thus, for example in the case of the IDi identifiers formed in figure 2 by the identifiers ID1, ID2, ID3, ID4 respectively of objects 201, 202, 203, 204, the calculator 4 deduces from the fact that m(ID1) < m(ID2) < m(ID3) < m(ID4) the order ORD of the identifiers ID1, ID2, ID3, ID4 from bottom to top and therefore the order ORD of the objects 201, 202, 203, 204 from bottom to top (or the order ORD of the identifiers ID4, ID3, ID2, ID1 from top to bottom and therefore the order ORD of the objects 204, 203, 202, 201 from top to bottom). The determination device 1000 includes a physical output 5, which is connected to the computer 4 and is capable of providing, during the third sub-step E3 of step E, information INF indicating the order ORD of the objects 201, 202, 203, 204 determined by the computer 4, from bottom to top (or top to bottom). This allows for a reliable vertical ranking of the IDs to be provided on the physical output 5. iread and objects 201, 202, 203, 204 according to their actual position in stack 200. According to a first embodiment of the invention, the calculator 4 is configured to calculate during the second sub-step E2 of step E as a parameter ^^^^^^^,^^ calculated according to the detection event(s) Aj,k the number ^^^^^^^^,^^ of the identifier IDi of each object (201, 202, 203, 204) by the radio frequency antenna Aj during the relative rotation during the duration(s) D, each duration D corresponding to the number Q of turn(s) of relative rotation of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas Aj. We therefore have: ^^^^^^^,^^ = ^^^^^^^^,^^. Thus, calculator 4 is used to count, during the second sub-step E2 of step E, the number of times ^^^^^^^^^,^^ that an event Aj,k of detection of the identifier IDi is obtained by the radio frequency antenna A j relative rotation during the duration(s) D, each duration D corresponding to the number Q of turns of relative rotation of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas A j Thus, calculator 4 is configured to count during the second substep E2 of step E the number of times ^^^^^^^^,^^ that the identifier IDi is detected by the radio frequency antenna Ajdurant the relative rotation during the) duration D, each duration D corresponding to the number Q of relative rotation turns of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas Aj. Thus, the computer 4 is configured to count during the second sub-step E2 of step E the number of power time peak(s) which is / are received by the radio frequency antenna Aj and with The identifier IDi (the power peak(s) being associated with the identifier IDi) was detected by the radio frequency antenna Aj or via the radio frequency antenna Aj during the relative rotation for the duration(s) D, each duration D corresponding to the number Q of turns of relative rotation of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas Aj. A flowchart of the determination process according to this first embodiment of the invention is shown in Figure 5. Thus, according to this first embodiment of the invention, the computer 4 is configured to calculate during the second substep E2 of step E for each identifier ID i of each object 201, 202, 203, 204 the weighted average m(IDi) according to the following equation: ∑ ^ ^^ ^ ^ ^ ^^^^^^ ^^,^ ∙ ^^^ In a non-limiting numerical example, where N = 10, M = 4, we can have the following values ​​for ^^^^^^^^,^^ according to the following table of 4 rows (IDi, i = 1 to 4) and 10 columns (of antennas Aj, j = 1 to 10) which indicates the value ^^^^^^^^,^^ for each antenna Aj and for each IDi and which indicates the weighted average m(IDi) for [Table 1] ^ ^^^^ ^ ^^,^ ^ AVERAGE Height ^^^ 50 150 250 350 450 550 650 750 850 950 (in mm) Antennas A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 m(IDi) (in mm) ID1 0 4 3 1 0 0 0 0 0 0 212.50 ID2 0 0 1 1 5 2 0 0 0 0 438.89 ID3 0 0 0 0 0 2 5 3 0 0 660.00 ID4 0 0 0 0 0 0 0 2 4 3 861.11 The weighted average m(IDi) of this first embodiment of the invention is thus an estimate of the vertical position of each ID identifier iof each object 201, 202, 203, 204 along the Z direction. This first embodiment therefore has the advantage of increasing, in the weighted average m(IDi), the weighting of antennas Aj having a large number of times ^^^^^^^^,^^ that IDi is detected by them, compared to the weighting of antennas Aj having a smaller number ^^^^^^^^,^^ for that IDi. This improves the estimated vertical position of each IDi of each object 201, 202, 203, 204 by the weighted average m(IDi). According to a second embodiment of the invention, the calculator 4 is configured to calculate during the second sub-step E2 of step E as a parameter ^^^^^^^,^^ calculated as a function of the detection event(s) Aj,k the sum ^^^^^^^^ = ∑^ ^^^^^^^,^^ , over the events Aj,k of detection, of the powers^^^^^^^,^^ with which the identifier IDi of each object 201, 202, 203, 204 is detected by the radio frequency antenna Aj in each detection event Aj,k, during the relative rotation during the duration(s) D, each duration D corresponding to the number Q of turn(s) of relative rotation of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas Aj. We therefore have: ^^^^^^^,^^ = ∑^ ^^^^^^^,^^ .The detection device 3 is configured to measure, during the first sub-step E1 of step E, the power ^^^^^^^,^^ of each detection event Aj,k of each identifier IDi of each object 201, 202, 203, 204 by each radio frequency antenna Aj during the relative rotation during the duration(s) D, each duration D corresponding to the number Q of turns of relative rotation of the vertical stack 200 of the objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas A. j Thus, the detection device 3 is configured to measure, during the first substep E1 of step E, the power ^^^^^^^^,^^ with which each detection event Aj,k of each identifier ID i The signal from each object 201, 202, 203, 204 is received by each radio frequency antenna A jduring the relative rotation during the duration(s) D, each duration D corresponding to the number Q of relative rotation(s) of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas A j. Thus, the calculator 4 is configured to calculate during the second sub-step E2 of step E the sum ^^^^^^^^ of the powers ^^^^^^^,^^ of the time peaks of power, which is(s) received by the radio frequency antenna Aj and with which (which) the identifier IDi (the time peak(s) of power being therefore associated with the identifier IDi) was detected by the radio frequency antenna Aj or via the radio frequency antenna Aj during the relative rotation during the duration(s)D, each duration D corresponding to the number Q of turn(s) of relative rotation of the vertical stack 200 of the objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas Aj. A flowchart of the determination process according to this second embodiment of the invention is shown in Figure 6.Thus, according to this second embodiment of the invention, the calculator 4 is configured to calculate during the second sub-step E2 of step E for each identifier IDi of each object 201, 202, 203, 204 the weighted average m(IDi) according to the following equation:. ∑ ^ ^^^^∑^ ^^^^^^^,^^ ^ ∙ ^^^ In a non-limiting numerical example, where N = 10, M = 4, we can have the following values ​​for ^^^^^^^,^^ and ^^^^^^^,^^ according to the following table for 4 IDi (i = 1 to 4) and 10 antennas Aj (j = 1 to 10) which indicates for each antenna Aj and for each IDi, and which indicates the weighted average m(IDi) for each IDi (the values ​​^^^^^^^,^^ being expressed in dBm, i.e., in decibels relative to 1 milliwatt): [Table 2] ^^^^^^^,^^ (in dBm) Antenna Height ^^^ID1 ID2 ID3 ID4 (in mm) A 1 50 0 0 0 0A2 150 -55 0 0 0150 -51 0 0 0150 -49 0 0 0150 -47 0 0 0A3 250 -43 0 0 0250 -42 0 0 0250 -44 0 0 0250 0 -58 0 0A4 350 -56 0 0 0350 0 -53 0 0A5 450 0 -48 0 0450 0 -46 0 0450 0 -45 0 0450 0 -43 0 0450 0 -47 0 0A6 550 0 -53 0 0550 0 -58 0 0550 0 0 -56 0550 0 0 -57 0A7 650 0 0 -48 0650 0 0 -46 0650 0 0 -45 0650 0 0 -42 0650 0 0 -41 0A8 750 0 0 -43 0750 0 0 -47 0750 0 0 -54 0750 0 0 0 -57750 0 0 0 -54A9 850 0 0 0 -49850 0 0 0 -46850 0 0 0 -45850 0 0 0 -49A10 950 0 0 0 -52950 0 0 0 -55950 0 0 0 -58m(IDi) (in mm) 212.27 437.14 656.47 861.61 The weighted average m(IDi) of this second embodiment of the invention is thus an estimate of the vertical position of each identifier IDi of each object 201, 202, 203, 204 along the Z direction. This second embodiment therefore has the advantage of increasing in the weighted average m(IDi) the weighting of some of the antennas Aj having a high power of reception of the identifier report to the weighting of the other antennas AJayant a lower power of reception of this IDi identifier. This improves the estimated vertical position of each IDi identifier of each object 201, 202, 203, 204 by the weighted average(ID) i The power ^^^^^^^,^^ of each detection event Aj,k of each identifier IDi of each object 201, 202, 203, 204 can be the received signal strength indicator RSSI (received signal strength indicator) by each radio frequency antenna A j This received signal strength indicator RSSI can be measured by the detection device 3 during the first substep E1 of step E. According to a third embodiment of the invention, the computer 4 is configured to calculate, during the second substep E2 of step E, as a parameter calculated according to the detection event(s) Aj,k, the parameter of Aj,k detection of the identifier IDi of each object (201, 202, 203, 204) by the radio frequency antenna Aj during the relative rotation during the duration (or durations) D, each duration D corresponding to the number Q of turn(s) of relative rotation of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas Aj. The parameter ^^^^^^^^ is equal to 1 when ^^^^,^^^^^ ≥ ^ ∙ ^^^^^,^ ^^^^^^^^,^^^, where ^^^^^^^,^^ is the power with which the IDi identifier of each object (201, 202, 203, 204) is detected by the radio frequency antenna Aj in each detection event Aj,k. The parameter XIDi(Aj) is equal to at least one value greater than or equal to 0 and less than 1 when ^^^^^^^,^^ < ^ ∙ ^^^^^,^ For example, XIDi(Aj) = 0 when ^^^^^^^,^^ < ^ ∙ ^^^ ^ ^,^ ^ ^^^^ ^ ^^,^ ^^ .The ^^^^^,^ is the maximum power on the radio frequency antennas A j And HAS j,k detection. B is a prescribed threshold, which is greater than 0 and less than 1. For example, B is greater than or equal to 0.5. Alternatively, B could be 0.9 or 0.95, or something else. The calculated value ^ ∙ is a received power threshold for detecting the ID identifier. i by the The detection device 3 is configured to measure, during the first sub-step E1 of step E, the power ^^^^^^^^,^^ of each detection event Aj,k of each identifier IDi of each object 201, 202, 203, 204 by each radio frequency antenna A j during the relative rotation during the duration(s) D, each duration D corresponding to the number Q of turns of relative rotation of the vertical stack 200 of the objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas A jThus, the detection device 3 is configured to measure, during the first substep E1 of step E, the power with which each detection event Aj,k of each identifier IDi of each object 201, 202, 203, 204 is received by each radio frequency antenna Aj during the relative rotation for the duration(s) D, each duration D corresponding to the number Q of turns of relative rotation of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas Aj. A flowchart of the determination method according to this third embodiment of the invention is shown in Figure 7. Thus, according to this third embodiment of the invention, the calculator 4 is configured to calculate during the second substep E2 of step E for each identifier ID i of each object 201, 202, 203, 204 the weighted average m(IDi) according to the following equation: ∑^ ^ ^^^^^^^^^^^ ∙ ^^^ In a non-limiting numerical example, where N = 10, M = 4, we can have the following values ​​for ^^^^^^^^ according to the following table for IDi (i = 1 to 4) and 10 antennas Aj (j = 1 to 10) which indicates the values ​​^^^^^^^,^^ for each Aj and for each IDi and which indicates the weighted average m(IDi) for each IDi, with B = 0.9 (the values ​​^^^^^^^,^^ being expressed in dBm, i.e. in decibels relative to 1 milliwatt): [Table 3] ^^^^,^^^^^ (in dBm) Antenna Height ^^^ID1ID2ID3ID4 (in mm) A 1 50 0 0 0 0A2 150 0 0 0 0150 0 0 0 0150 -49 0 0 0150 -47 0 0 0A3 250 -43 0 0 0250 -42 0 0 0250 -44 0 0 0250 0 0 0 0A4 350 0 0 0 0350 0 0 0 0A5 450 0 -48 0 0450 0 -46 0 0450 0 -45 0 0450 0 -43 0 0450 0 -47 0 0A6 550 0 0 0 0550 0 0 0 0550 0 0 0 0550 0 0 0 0A7 650 0 0 -48 0650 0 0 -46 0650 0 0 -45 0650 0 0 -42 0650 0 0 -41 0A8 750 0 0 -43 0750 0 0 -47 0750 0 0 0 0750 0 0 0 0750 0 0 0A9 850 0 0 0 -49850 0 0 0 -46850 0 0 0 -45850 0 0 0 -49A10 950 0 0 0 0950 0 0 0 0950 0 0 0 m(IDi) (in mm) 207.33 450.00 678.85 850.00 Weighted average m(IDi) of this second embodiment of the invention is thus an estimate of the vertical position of each identifier IDi of each object 201, 202, 203, 204 along the Z direction. This third embodiment therefore has the advantage of further increasing, compared to the second embodiment, in the weighted average m(IDi), the weighting of certain of the antennas Aj having a high reception power. (greater than or equal to the power threshold ^ ∙ ^^^^^,^ ^^^^^^^^,^^^) relative to the weighting^^^^^^^^ of the other antennas Aj having a lower reception power ^^^^^^^,^^ of this identifier at the power threshold ^ ∙ ^^^^^,^ ^^^^^^^^,^^^). This improves the estimated vertical position of each ID i of each object 201, 202, 203, 204 by the weighted average m(ID i The power ^^^^^^^,^^ of each detection event Aj,k of each identifier IDi of each object 201, 202, 203, 204 can be the received signal strength indicator RSSI (received signal strength indicator) by each radio frequency antenna A jThis received signal strength indicator RSSI can be measured by the detection device 3 during the first sub-step E1 of step E. This third embodiment therefore has the advantage in this case of focusing the weighted average m(IDi) of the identifier IDi read on the antenna Aj having the highest received signal strength indicator RSSI. Embodiments of the invention, which can be combined with the features described above and each of the embodiments described above, are described below.According to one embodiment of the invention, the radio frequency antennas Aj are all activated simultaneously in radio frequency reception mode to receive the IDi identifiers of the objects 201, 202, 203, 204 during the relative rotation of the vertical stack 200 of the objects 201, 202, 203, 204 around the vertical axis 212 with respect to the N radio frequency antennas Aj for the duration(s) D, each duration D corresponding to the number Q of rotation(s) during the first sub-step E1. According to another embodiment of the invention, in the first sub-step E1, the N radio frequency antennas Aj are activated one after the other by the computer 4, each for the duration(s) D in radio frequency reception mode corresponding to the relative rotation of the vertical stack 200 of the objects 201, 202, 203, 204 around the vertical axis 212 with respect to the N radio frequency antennas Aj.Thus, the radio frequency antennas Aj are activated one after the other (without interruption or with interruption between the radio frequency antennas Aj) by the computer 4, each for a duration Dd'activation in radio frequency reception mode to receive the IDi identifier(s) of the objects 201, 202, 203, 204 during the relative rotation of the vertical stack 200 of the objects 201, 202, 203, 204 around the vertical axis 212 with respect to the N radio frequency antennas Aj during each activation duration D corresponding to the number Q of turns during the first sub-step E1. There are therefore successively N activation durations D in reception mode for the N radio frequency antennas A. jDuring each activation time D in radio frequency reception mode, the rotation device 11 causes the vertical stack 200 of objects 201, 202, 203, 204 to perform a number Q of rotations relative to the vertical axis 212 of rotation with respect to the N radio frequency antennas A j and the detection device 3 measures, for each ID identifier i of each object 201, 202, 203, 204 and for the radio frequency antenna A j which is in radio frequency reception mode, the event(s) A j,k ID detection i of each object 201, 202, 203, 204 by the radio frequency antenna A jduring the relative rotation, for the activation time D corresponding to the number Q of relative rotation turns. For example, each activation time D can correspond to one relative rotation turn of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 with respect to the N radio frequency antennas A j that is, Q=1 for each activation time D. According to another embodiment of the invention, the radio frequency antennas A j are activated sequentially by subgroups. In the first substep E1, several subgroups of the radio frequency antennas A jare activated by the computer 4 one after the other each during the duration D in radio frequency reception mode corresponding to the relative rotation of the vertical stack 200 of the objects 201, 202, 203, 204 around the vertical axis 212 with respect to the N radio frequency antennas Aj during the duration D, the subgroups of the radio frequency antennas Aj being disjoint from each other. Thus, the subgroups of the radio frequency antennas Aj are activated one after the other (without interruption or with interruption between the subgroups) by the computer 4 each during the activation time D in radio frequency reception mode to receive the IDi identifier(s) of the objects 201, 202, 203, 204 during the relative rotation of the vertical stack 200 of the objects 201, 202, 203, 204 around the vertical axis 212 with respect to the N radio frequency antennas Aj during each activation time D corresponding to the number Q of turn(s) during the first substep E1.There are therefore successively several durations D of activation in reception mode respectively of the radio frequency antennas Aj of each subgroup. During each activation time D in radio frequency reception mode, the rotation device 11 causes the vertical stack 200 of objects 201, 202, 203, 204 to perform the number Q of relative rotation turns of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas Aj and the detection device 3 measures, for each identifier IDi of each object 201, 202, 203, 204 and for the respective subgroup of radio frequency antennas Aj which is in radio frequency reception mode, the event(s) Aj,k of detection of the identifier IDi of each object 201, 202, 203, 204 by the respective subgroup of radio frequency antennas Aj during the relative rotation during the activation time D corresponding to the number Q of relative rotation turns.For example, each activation time D can correspond to one rotation of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 with respect to the N radio frequency antennas Aj, i.e., Q=1 for each activation time D. Further embodiments of the invention are described below, which can be combined with the features described above and each of the embodiments described above. According to one embodiment of the invention, shown in Figure 8, each device 2010, 2020, 2030, 2040 emits the identifier ID. i Each object 201, 202, 203, 204 contains a radio frequency transponder capable of transmitting the ID identifier i of object 201, 202, 203, 204 in response to an interrogation signal. The same number (one or more) of radio frequency transponder(s) may be provided on each object 201, 202, 203, 204. Device 3 for detecting ID identifiersi comprises at least one reader 6, which is capable of transmitting the radio frequency transponder interrogation signal during the relative rotation for the duration(s) D, each duration D corresponding to at least one revolution during the first substep E1. The reader 6 is connected to the N radio frequency antennas Aj and is capable of reading, during each detection event, the identifier ID iof object 201, 202, 203, 204, which was emitted by at least one of the radio frequency transponders in response to the interrogation signal and which was received by at least one of the radio frequency antennas Aj during the relative rotation for the duration(s) D, each duration D corresponding to at least one revolution during the first substep E1. Reader 6 can emit the interrogation signal continuously during the relative rotation for the duration(s) D, each duration D corresponding to the number Q of revolution(s) during the first substep E1. Reader 6 allows measurement for each IDi identifier of each object 201, 202, 203, 204 and for each radio frequency antenna Aj, the event(s) Aj,k of detection of the IDi identifier of each object 201, 202, 203, 204 by the radio frequency antenna Aj during the relative rotation for at least one duration D, as described above.Reader 6 can be associated with computer 4 and / or be connected to computer 4 and / or be controlled by computer 4. According to an example of this embodiment of the invention, shown in Figure 8, each radio frequency transponder is an RFID tag in which the IDi identifier is recorded. Reader 6 is at least one RFID reader. RFID is the abbreviation for radio frequency identification. The RFID tag can consist of an electronic chip coupled to a radio antenna (distinct from the Aj antennas). According to another embodiment of the invention, shown in Figure 3, each device 2010, 2020, 2030, 2040 for emitting the IDi identifier of each object 201, 202, 203, 204 includes a transmitter of the IDi identifier of the object 201, 202, 203, 204. The same number (one or more) of transmitter(s) of the IDi identifier can be provided on each object 201, 202, 203, 204.According to an example of this embodiment of the invention, shown in figures 2 and 8, a pressure and / or temperature sensor of the pneumatic casing P is attached to the wheel R described above and / or to the pneumatic casing P described above. The transmitter of the identifier ID. iThe pressure and / or temperature sensor of the tire P is part of the tire pressure and / or temperature sensor. The tire pressure and / or temperature sensor P can be a TPMS (Tire Pressure Monitoring System) and / or TMS (Tire Monitoring System) type sensor. The tire pressure and / or temperature sensor P can be located on a valve of the tire P, which is its inflation nozzle. For example, in stack 200, the pressure and / or temperature sensors, and therefore the respective ID-issuing devices 2010, 2020, 2030, and 2040, are all located above the rim of the wheel R, or are all located below the rim of the wheel R.The two previous embodiments can be combined, by the fact that each object 201, 202, 203, 204 is provided with a radio frequency transponder (or transponders) capable of transmitting the IDi identifier of the object 201, 202, 203, 204 in response to an interrogation signal and the transmitter (or transmitters) of the IDi identifier of the object 201, 202, 203, 204 (this IDi identifier of the transmitter may be a string of characters different from the string of characters of the IDi identifier of the radio frequency transponder, or may be a string of characters identical to the string of characters of the IDi identifier of the radio frequency transponder). According to one embodiment of the invention, the distance between the highest radio frequency antenna Aj and the lowest radio frequency antenna Aj is at least 90% or 95% of the height of the vertical stack 200 of objects 201, 202, 203, 204. This makes it possible to cover all the objects in the stack 200.The distance between the highest radio frequency antenna Aj and the lowest radio frequency antenna Aj can be equal to 100% of the height of the vertical stack 200 of objects 201, 202, 203, 204, or more than 100% of the height of the vertical stack 200 of objects 201, 202, 203, 204. According to one embodiment of the invention, each object 201, 202, 203, 204 has a height greater than or equal to a prescribed height. The positions of the N radio frequency antennas Aj are spaced vertically apart by a spacing height less than half the prescribed height. We thus have at least two of the N radio frequency antennas Aj located horizontally opposite each object 201, 202, 203, 204.According to one embodiment of the invention, the rotation device 11 can have a constant rotation speed to make the vertical stack 200 of objects 201, 202, 203, 204 perform at least one relative rotation of the vertical stack 200 of objects 201, 202, 203, 204 around the vertical axis 212 of rotation with respect to the N radio frequency antennas A. j The combination of the integer number Q of revolutions and the constant rotation speed ensures fairness in the spatiotemporal area detected by the detection device 3 and improves the determination of the order of operations (ORD) in a fast acquisition time. According to an embodiment of the invention, shown in Figures 3, 4, 8, and 9, the set 31 and / or 32 of N radio frequency antennas A j can be fixed to an arm 310 extending at least vertically over a certain height, for example parallel to the Z direction. For example, the set 31 of N radio frequency antennas A j and game 32 of N other radio frequency antennas Aj are fixed to the same arm 310 extending vertically over a certain height, for example respectively to the right and left of the arm 310 and with a vertical offset between the two sets 31 and 32 so that the vertical positions of the antennas A j alternate from bottom to top between set 31 and set 32. Each antenna can be attached to the arm 310 by means of an angled bracket 311. Of course, several arms 310 could be provided, which are distributed around the axis of rotation 212, described below, and which each support one or two sets 31 of N radio frequency antennas A jAccording to one embodiment of the invention, the stack 200 can be placed on a base 211 facilitating the movement of the stack 200. The base 201 can be equipped on the face opposite the one in contact with the stack 200 with means of movement such as casters, for example, not shown. Thus, the stack 200 can be manually positioned relative to the radio frequency communication rotation device 11, and in particular, the stack 200 can be positioned relative to the rotation axis of the latter. According to one embodiment of the invention, shown in Figure 4, the device 1000 for determining the order of objects 201, 202, 203, 204 is part of a conveyor line 100. The conveyor line 100 defines a path 125 that the stacks 120 of objects 201, 202, 203, 204 travel from a starting point 121 to an arrival point 122.The conveyor line 100 includes a first conveyor 123 located upstream of the determination device 1000, i.e. between the starting point 121 and the determination device 1000, to bring the stack 120 of objects 201, 202, 203, 204 from the starting point 121 to the determination device 1000, this first conveyor 123 being able to be equipped with an endless belt conveyor 126 (or any other movement device) to ensure the movement of the stack 120 of objects 201, 202, 203, 204 from the starting point 121 to the determination device 1000.The conveyor line 100 includes a second conveyor 124 located downstream of the determination device 1000, i.e., between the determination device 1000 and the arrival point 122, to bring the stack 120 of objects 201, 202, 203, 204 from the determination device 1000 to the arrival point 122. This second conveyor 124 may be equipped with an endless belt conveyor 127 (or any other movement device) to ensure the movement of the stack 120 of objects 201, 202, 203, 204 from the determination device 1000 to the arrival point 122. The computer 4 may be or include, and the operations performed by the computer 4 may be performed by or distributed across one (or more) computer(s) and / or one (or more) processor(s) and / or one (or more) microprocessor(s), and / or one (or more) control circuit(s), or other.The computer 4 may have been programmed by a computer program, including code instructions for the implementation of the process, when it is implemented on this computer 4. The computer 4 may include a permanent memory 40 (non-transient) or a permanent medium 40 (non-transient), on which or which is recorded the computer program and / or the calculated quantities mentioned above, including in particular the weighted averages m(ID. i ) and the ORD order. Of course, the embodiments, characteristics, possibilities and examples described above can be combined with each other or selected independently of each other.

Claims

CLAIMS 1. A method for determining the order of objects (201, 202, 203, 204) placed vertically one on top of the other to form a vertical stack (200) of objects (201, 202, 203, 204), each object (201, 202, 203, 204) carrying at least one device (2010, 2020, 2030, 2040) for issuing an ID identifier i of the object (201, 202, 203, 204), the ID identifiers ibeing different from each other, the method comprising a step (E) in which the vertical stack (200) of objects (201, 202, 203, 204) is brought in front of an identifier detection device (3), comprising at least one set of N radio frequency antennas Aj, which have positions spaced at least vertically apart from each other, to determine a vertical order of the objects (201, 202, 203, 204) in the vertical stack (200), where N is a natural number greater than or equal to 4, characterized in that said step (E) for determining the vertical order (ORD) of the objects (201, 202, 203, 204) in the vertical stack (200) comprises the following substeps: a first substep (E1), in which the vertical stack (200) of objects (201, 202, 203, 204) is rotated. 203, 204) on a rotation device (11) to perform a relative rotation of the vertical stack (200) of objects (201, 202, 203,204) around a vertical axis (212) relative to the N radio frequency antennas Aj according to at least one revolution (Q), and we measure by the detection device (3), for each identifier IDi of each object (201,202, 203, 204) and for each radio frequency antenna Aj, the detection event(s) Aj,k of the identifier IDi of each object (201, 202, 203, 204) by the radio frequency antenna Aj during the relative rotation for at least a duration (D), each duration (D) corresponding to at least one revolution (Q), a second sub-step (E2), in which we calculate by a computer (4) a parameter ^^^^^^^,^^ calculated as a function of the detection event(s) Aj,k, and, Calculator (4) calculates for each IDi identifier of each object (201, 202, 203, 204) a weighted average m(IDi) according to the following equation: ∑ ^ ^ ^^^^^^^^^^,^^ ∙ ^^^where ^^^ is a weighting antenna Aj,j is a natural number from 1 to N, a third sub-step (E3), in which the computer (4) determines the vertical order (ORD), from bottom to top, of the objects corresponding to the identifiers IDi according to the increasing direction of the weighted means m(IDi) having been calculated or the vertical order (ORD), from top to bottom, of the objects (201, 202, 203, 204) corresponding to the identifiers IDi according to the decreasing direction of the weighted means m(IDi) having been calculated and a physical output (5) provides information (INF) indicating the vertical order (ORD) of the objects (201, 202, 203, 204), having been determined by the computer (4).

2. A method according to claim 1, characterized in that the parameter ^^^^^^^,^^ calculated as a function of the detection event(s) Aj,k is the number^^^^^^^^^,^^ of detection events Aj,k of the identifier IDi of each object (201, 202, 203, 204) by the radio frequency antenna Aj. 3.Method according to claim 1, characterized in that the parameter ^^^^^^^,^^ calculated as a function of the detection event(s) Aj,k is the sum(^^^^^^^^ = ∑^ ^^^^^^^,^^ , over the detection events Aj,k, of the powers ^^^^^^^,^^ with. Each object (201, 202, 203, 204) is detected by the radio frequency antenna A j in each event A j,k 4. A method according to claim 1, characterized in that the parameter ^^^^^^^,^^ calculated as a function of the detection event(s) Aj,k is equal to ^^^^^^^^, where ^ ^^ ^ is equal to 1 when ^ ^^ ^ ≥ ^ ∙ ^^^ ^^ ^^ ^^, ^^^ ^ ^^^,^ ^ ^^,^ ^^^ ^,^where ^^^^^^^,^^ is the power with which the IDi identifier of each object (201, 202, 203, 204) is detected by the radio frequency antenna A j in each event A j,k detection, XIDi(Aj) is equal to at least one value greater than or equal to 0 and less than 1 when ^^^^^^^,^^ < ^ ∙^^^^^ ^ ^^ ^^^ ^^ ^,^ ^^,where ^^,^ ^^^ ^,^ is the maximum power ^^^^,^^^^^ on the Ajet radio frequency antennas on events A j,k of detection, B is a prescribed threshold, which is greater than 0 and less than 1.

5. A method according to any one of claims 1 to 4, characterized in that in the first substep (E1) the N radio frequency antennas Aj are activated simultaneously by the computer (4) for a duration (D) in radio frequency reception mode corresponding to the relative rotation of the vertical stack (200) of objects (201, 202, 203, 204) around the vertical axis (212) with respect to the N radio frequency antennas A jduring the duration (D).

6. A method according to any one of claims 1 to 4, characterized in that in the first substep (E1) the N radio frequency antennas Aj are activated one after the other by the computer (4), each for the duration (D) in radio frequency reception mode corresponding to the relative rotation of the vertical stack (200) of objects (201, 202, 203, 204) around the vertical axis (212) with respect to the N radio frequency antennas A j during the duration (D).

7. A method according to any one of claims 1 to 4, characterized in that in the first substep (E1) several subgroups of the radio frequency antennas Aj are activated by the computer (4) one after the other, each for a duration (D) in radio frequency reception mode corresponding to the relative rotation of the vertical stack (200) of objects (201, 202, 203, 204) around the vertical axis (212) with respect to the N radio frequency antennas A jduring the duration (D), the subgroups of the radio frequency antennas A jbeing disjoint from each other. 8.A method according to any one of the preceding claims, characterized in that each device (2010, 2020, 2030, 2040) for emitting the IDi identifier of each object (201, 202, 203, 204) comprises a radio frequency transponder capable of emitting the IDi identifier of the object (201, 202, 203, 204) in response to an interrogation signal, the device (3) for detecting the IDi identifiers comprises at least one reader (6), which is capable of emitting the interrogation signal of the radio frequency transponders during the relative rotation for at least a duration (D) corresponding to at least one revolution during the first substep (E1), and the reader (6) being connected to the N radio frequency antennas Aj and being capable of reading, during each detection event, the IDi identifier of the object (201, 202, 203, 204), which was emitted by at least one of the radio frequency transponders in response to the interrogation signal and which was received by at least one of the radio frequency antennas Aj. 9.A method according to claim 8, characterized in that each radio frequency transponder is an RFID tag in which the IDi identifier is recorded, the reader (6) being at least one RFID reader (6).

10. A method according to any one of the preceding claims, characterized in that the object comprises a wheel (R), a tire (P) fixed to the wheel (R), and a pressure sensor for the tire (P) and / or temperature sensor for the tire (P), the pressure sensor for the tire (P) and / or temperature sensor for the tire (P) being fixed to the wheel (R) or to the tire (P), each device (2010, 2020, 2030, 2040) for emitting the IDi identifier of each object (201, 202, 203, 204) comprising an emitter of the IDi identifier of the object (201, 202, 203, 204) forming part of the pressure and / or temperature sensor of the tire (P). 11.Method according to claim 8 or 9 taken in combination with claim 10, characterized in that each radio frequency antenna A. j is capable of detecting said ID i of the object (201, 202, 203, 204) of each radio frequency transponder and said IDi identifier of the object (201, 202, 203, 204) of each transmitter of the IDi identifier of the object (201, 202, 203, 204).

12. A method according to any one of the preceding claims, characterized in that the distance between the radio frequency antenna A j located at the very top and the radio frequency antenna A j located at the bottom is at least 90% of the height of the vertical stack (200) of objects (201, 202, 203, 204).

13. A method according to any one of the preceding claims, characterized in that each object (201, 202, 203, 204) has a height greater than or equal to a prescribed height, the positions of the N radio frequency antennas A jare vertically spaced from each other by a spacing height less than half the prescribed height.

14. A method according to any one of the preceding claims, characterized in that the relative rotation is carried out over an integer number (Q) of turn(s).

15. A method according to any one of the preceding claims, characterized in that during the first substep (E1), the measurement of the event(s) Aj,k by the detection device (3) is made, when the rotation device (11) rotates the vertical stack of objects (201, 202, 203, 204) at a constant relative rotational speed with respect to the N radio frequency antennas Aj.

16. Device (1000) for determining the order of objects (201, 202, 203, 204) for implementing the order determination method according to any one of the preceding claims, the determination device (1000) comprising a device (3) for detecting IDi identifiers,comprising at least one set of N radio frequency antennas Aj, which have positions spaced at least vertically apart from each other, characterized in that the determination device (1000) further comprises a rotation device (11) for performing a relative rotation of the vertical stack (200) of objects (201, 202, 203, 204) around a vertical axis (212) with respect to the N radio frequency antennas Aj by at least one revolution, the detection device (3) being configured to measure, for each IDi identifier of each object (201, 202, 203, 204) and for each radio frequency antenna Aj, the detection event(s) Aj,k of the IDi identifier of each object (201, 202, 203, 204) by the radio frequency antenna Aj during the relative rotation for at least a duration (D), each duration (D) corresponding to at least one turn (Q), the determination device (1000) further comprising a calculator (4) configured to calculate a parameter ^^^^^^^,^^ depending on the detection event(s) Aj,k and to calculate for each IDi identifier, object (201, 202, 203, 204) a weighted average m(IDi) according to the following equation: ∑ ^ ^ ^ ^ ^ ^^^^^^ ^^,^ ∙ ^^^where ^ ^^ is a weighting The antenna Aj, where j is a natural number from 1 to N, the calculator (4) is configured to calculate the vertical order (ORD), from bottom to top, of the objects corresponding to the ID identifiers i according to the increasing direction of the weighted averages m(ID i ) having been calculated or the vertical order (ORD), from top to bottom, of the objects (201, 202, 203, 204) corresponding to the IDs IDi according to the descending direction of the weighted means m(ID i) having been calculated, the determination device (1000) further comprising a physical output (5), which is connected to the computer (4) and which is capable of providing information (INF) indicating the vertical order (ORD) of the objects (201, 202, 203, 204), having been determined by the computer (4).

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