• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An article sorting installation (7) comprising: - at least one conveyor (4) comprising supports (3) adapted to carry the articles (7), and - at least one receiving device (5), the supports being adapted to eject successively at least some of the articles in or on the receiving device, the ejected articles describing actual trajectories (Tr) relative to the receiving device, the actual trajectories being likely to belong to a predefined set (Tr-Out) of potential trajectories considered incorrect. The installation further comprises: - a detector (61) adapted to provide primary information relating respectively to real trajectories, and - an analyzer (6) adapted to use said primary information and to produce at least one secondary information representative of the membership at least one of the real trajectories to the predefined set (Tr-Out). Corresponding method.
    公开号:FR3044648A1
    申请号:FR1561894
    申请日:2015-12-04
    公开日:2017-06-09
    发明作者:David Zak
    申请人:Fives Intralogistics SA；
    IPC主号:
    专利说明:

    The invention relates to the field of article sorting installations, more particularly those equipped with cross-band carriages, referred to in the art. English crossbelt, tilt-trays, English-style tilting trays, or shoe-sorters.
    Sorting facilities for items, such as parcels and packages, are partly made up of equipment called sorters. These sorters consist for example of carriages connected together in an articulated manner to form a train that circulates in a loop on a path constituting a circuit. In general, the carriages form a chain at regular intervals. In particular, these sorting facilities are used in the distribution sector to prepare orders for points of sale or directly to customers.
    The articles are introduced by automatic loading stations on the carriages or possibly on roller conveyors. These trolleys transport the articles to outlets corresponding to areas of care or shipping areas. The passage of the article from the carriage to the exit is currently an action that requires to be manually adjusted to ensure proper support of the article and avoid congestion or damage to items during this transfer.
    Sorting facilities manage a wide range of items with weights of up to 50 kg, and various shapes or volumes with cart travel speeds of up to 3 m / s. Setting the ejection of items is a complex operation.
    To better understand the operation, it is necessary to explain the principle of ejection of a package from a sorting facility equipped with crossed-belt carriage, crossbelt type, although the present invention is not limited in its scope of application. application and allow the same operations on an installation using shoe-sorter sortors or tilt-tray, or any other known device for sorting articles.
    To eject an article from a cross-stripe trolley, the cross-stripe of the trolley is moved by a motor, causing the article to be ejected perpendicularly or at a substantially acute angle to the direction of travel of the trolley. trolley on the tread of the installation. This ejection is initiated by an electronic device, called a trigger antenna, disposed at the right of each output. The location of this equipment is defined during the design of the installation project and is adjusted on site according to the actual position of the outlets. This ejection must allow to properly position the items in the outputs, that is to say, to give them a path consistent with the shape and dimensions of the output. The outputs are receiving devices, for example roller conveyors, falls, spiral falls, baskets ...
    When articles change in nature, it is sometimes necessary to make adjustments - by successive tests with the release of more or less large articles, and more or less heavy - to adjust the ejection position. Trigger antennas are commonly used which transmit infrared signals to the trolley with tripping commands. In place of these antennas, it is also possible to use the theoretical position expressed in steps and in time, to indicate to a carriage to which exit it must eject the article.
    Adjustments can be made mechanically by moving the triggering antenna of the ejection, or by software, using a trigger offset called offset in English (software delay of the unloading moment) depending on the importance of the correction to to bring. In order to carry out the ballistics adjustment, items of different types and characteristics must be passed through each of the outputs in order to adjust the trip offset empirically until the operator or the operator is observing acceptable behavior. Only the experience allows a good adjustment that is based on a feeling of the operator. The setting is not repeatable and random from one installation to another.
    In addition, no reliable measurement can serve as a reference for later control or drift detection. No real-time diagnostics are possible, which prevents any automatic alert or error correction. Adjusting the ballistics of a sorter is therefore a long and complex operation, based essentially on the experience of the driver, because manual.
    The present invention therefore aims to overcome the aforementioned drawbacks, by proposing a sorting installation and a method for improving the initial setting of ejection articles and maintain a correct setting later.
    Thus, according to a first aspect, the subject of the invention is an article sorting installation comprising: at least one conveyor forming a circulation path for the articles, the conveyor comprising supports adapted to carry the articles, and least one receiving device, the supports being further adapted to eject successively at least some of the articles in or on the receiving device, the ejected articles describing real trajectories relative to the receiving device, the actual trajectories being likely to belong to a set predefined set of potential trajectories considered to be incorrect, further comprising: a detector adapted to provide primary information relating respectively to the real trajectories, and an analyzer adapted to use said primary information and to produce at least one secondary information representative of the belonging of the trainee. at least one of the traje real ctoires to the predefined set.
    According to some embodiments, the installation furthermore comprises one or more of the following characteristics, taken in isolation or in any technically possible combination: the detector comprises at least one device taken from a camera, an infrared sensor, a ultrasonic sensor, and a laser, or a combination of these devices; the primary information is images or films, and the analyzer comprises a calculation means or a computer adapted to perform an analysis of said images or said films, the secondary information being a result of the analysis; the installation further comprises a control system adapted to receive the secondary information and to modify at least one operating parameter of the conveyor by using the secondary information, the real trajectories being modified after said modification of the parameter so as not to no longer belong to the predefined set; the operating parameter of the conveyor is adapted to modify: an ejection speed of at least one of the articles relative to the receiving device, an instant of triggering the ejection of at least one of the articles, an a period of time between said moment of initiation and a time reference, or - a speed of movement of at least one of the supports relative to the receiving device; and - the installation comprises a sensor adapted to provide said time reference or the control system is adapted to provide said time reference. The subject of the invention is also, according to a second aspect, a sorting method comprising the following steps: providing at least one conveyor forming a circulation path for the articles, the conveyor comprising supports adapted to carry the articles, - Providing at least one receiving device, - Successively ejecting at least some of the articles by the supports in or on the receiving device, the ejected articles describing real trajectories relative to the receiving device, - Providing a predefined set potential trajectories considered as incorrect, the actual trajectories being likely to belong to the predefined set, - detection to provide primary information relating respectively to the real trajectories, and - analysis of the real trajectories from the primary information and obtaining a Secondary information representative of belonging at least one of the actual trajectories to the predefined set.
    According to some embodiments, the method further comprises one or more of the following characteristics, taken separately or in any possible technical combination: the step of providing the predefined set comprises the following substeps: recording of one of the real trajectories, the recorded trajectory being considered correct, and. calculating the predefined set from the recorded trajectory and a tolerance threshold representative of a maximum difference between the real trajectories and the recorded trajectory; the step of providing the predefined set comprises the use of a graphical interface by an operator; the method further comprises a step of modifying at least one operating parameter of the conveyor as a function of the secondary information, the real trajectories being modified after said modification of the parameter so as to no longer belong to the predefined set; and in the step of modifying at least one operating parameter of the conveyor, at least one physical characteristic of at least one of the articles is used to modify said operating parameter.
    The features and advantages of the invention will become apparent on reading the description which follows, given solely by way of example, and not by way of limitation, with reference to the appended drawings, in which: FIG. 1 is a diagrammatic representation, in top view of an installation according to the invention; and FIG. 2 is a view from above of part of the installation shown in FIG. 1, showing in particular two receiving devices.
    With reference to FIG. 1, an article sorting installation 1 is described. The installation 1 is for example of the cross-belt type (with cross-band carriages).
    In a variant, the installation 1 is for example of the tilt-tray or shoe-sorter type. The installation 1 comprises a conveyor 4, automatic loading stations 2 for transferring the articles 7 on the conveyor, and receiving devices 5 for collecting the sorted articles 7 according to destinations respectively corresponding to the receiving devices.
    Articles 7 are, for example, parcels, bins, packaged or unpackaged articles, letters or packages, plastic bins, tires, flat objects, bundles, letters, or manufactured goods in their packaging.
    The conveyor 4 forms a path on which the articles 7 circulate before passing respectively into one of the receiving devices 5. In the example shown, the conveyor 4 has a "U" shape in plan view. The conveyor 4 comprises successive supports 3 adapted to carry the articles 7, advantageously regularly spaced along the driving lane. The conveyor 4 is for example cross-belt type. The lane defines locally a longitudinal direction L and a direction of circulation.
    The supports 3 form a chain which moves on the circulation path formed by the conveyor 4. The supports 3 are for example carriages. Each carriage has a so-called "crossed" strip 10, because oriented in a transverse direction T.
    The supports 3 are adapted to eject the articles 7 laterally with respect to the conveyor on one of the receiving devices 5. Each ejected article 7 describes a real trajectory Tr with respect to the receiving device 5 on which it is ejected. The actual trajectories Tr belong either to a predefined set Tr-ln of potential trajectories considered to be correct or acceptable, or to a predefined set Tr-Out of potential trajectories considered as incorrect or not acceptable.
    The correctness or otherwise of the trajectories arises, for example, from the fact that it is desired to prevent the articles from being subjected to dangerous shocks to their contents, or to avoid jamming of articles 7 at the entrance or on the receiving devices 5. More generally, a "correct" trajectory is a trajectory allowing an unhindered routing of the article 7 via the receiving device 5.
    In the example shown, the transverse direction T forms a right angle with the longitudinal direction. Alternatively (not shown), the transverse direction T forms an acute angle with the longitudinal direction L. The installation 1 also comprises a detector 61 adapted to provide primary information relating respectively to the actual trajectories Tr of the articles 7, and an analyzer 6 adapted to use said primary information and produce at least one secondary information representative of the membership of at least one of the real trajectories Tr to the predefined set Tr-Out. The installation 1 comprises a control system 8 adapted to receive the secondary information and to modify at least one operating parameter of the conveyor 4. The real trajectories Tr are modified after the modification of the parameter so as to no longer belong to the set predefined Tr-Out, that is to say to become acceptable again.
    By "modifying" an operating parameter, here is meant to calculate a new value for this parameter, the new value being imposed on the conveyor 4 by the control system 8, for example in the form of a new instruction.
    The operating parameter is for example representative of: - an ejection speed of at least one of the articles 7 relative to the receiving device 5, - an acceleration to be applied to at least one of the articles 7 by the engine of the equipment 10, - an instant of triggering the ejection of the article 7, - a lapse of time, or offset, between said moment of release and a time reference, and / or - d ' a speed of displacement of the support 3 with respect to the receiving device 5.
    FIG. 2 shows two reception devices 5, which we will also call "outputs", with reference to the conveyor 4. The conveyor 4 passes in front of the outputs 5. The outputs 5 are provided with trigger antennas 9 arranged at the input of each outlet 5, the upstream side in the direction of flow of the conveyor 4. The outputs 5 further comprises, for example, a ramp extending transversely from the conveyor 4, on which the articles 7 slide.
    When an article 7, transported by a support 3, reaches the level of the trigger antenna 9, a motor (not shown) of the cross-band of the support rotates the crossed band to eject the article 7 in its output 5 of destination. The antenna 9 provides in this case said time reference for triggering the ejection.
    According to a variant, the control system 8 is adapted to provide said time reference.
    The detector 61 makes it possible to observe the real trajectory Tr of the article 7 on the output 5. The detector 61 is for example a camera and the primary information is an image, a plurality of images, or a film.
    As a variant, the detector 61 is any other sensor also adapted to locate the article 7 with respect to the borrowed receiver device, in any case sufficiently to determine whether the real trajectory Tr belongs to the predefined set Tr-ln or to the predefined set Tr-Out. The detector 61 is for example an infrared sensor, a laser or a combination of these sensors. The detector 61 comprises for example several sensors of the same kind, operating for example successively or by triangulation.
    The detector 61, in the example a camera, is for example located longitudinally between two consecutive receiving devices 5, so that the detector is capable of providing information relating to the actual trajectories on the two receiving devices 5 which are adjacent thereto. The use of a video camera is particularly advantageous for visualizing the actual trajectories Tr of articles 7 on the outputs 5. The analyzer 6 advantageously comprises a calculation means intended to determine the real trajectory Tr, and for example a speed V of Article 7 in relation to the exit 5 taken, particularly at the time of the ejection. This calculation means is for example a computer equipped with appropriate software, a programmable logic controller, or an electronic card dedicated to the determination of the trajectories and speeds of articles 7.
    The detector 61 or the analyzer 6 can also save images or videos of the articles 7 passing on the exits 5. A posteriori examination of these archives can be realized to understand the behavior of certain articles 7 and their real trajectory Tr L analyzer 6 analyzes the primary information and produces at least one secondary information representative of the membership of the actual trajectory Tr to the predefined set Tr-ln or the predefined set Tr-Out. The predefined set Tr-ln and the predefined set Tr-Out are for example defined by the operator directly in the analyzer 6. This definition can be made according to technical parameters of the outputs 5 and average characteristics of the articles 7 or from an iterative parameterization process by an operator (not shown) using the analyzer 6. The operator can notably record a real reference trajectory Tr-R of an article 7 that he considers acceptable, and generalize this reference real trajectory by adding a tolerance threshold S. The predefined set Tr-ln is then defined as the set of potential trajectories presenting with the real reference trajectory
    Tr-R a deviation less than or equal to the tolerance threshold S. The predefined set Tr-out contains the potential trajectories which have a difference strictly greater than the tolerance threshold S.
    According to one variant, the operator can also indicate to the analyzer 6 areas to avoid on the outputs 5 by means of a graphical interface of the analyzer 6 representing the outputs 5. In this case, the operator selects the potential trajectories belonging to the analyzer 6. to the predefined set Tr-ln, and / or the potential trajectories belonging to the predefined set Tr-Out.
    Once the predefined set Tr-ln and the predefined set Tr-Out are defined for each output 5 or by type of outputs 5, articles 7 of different sizes are advantageously introduced into the installation 1 to test and adjust the offsets or tripping offsets relative to antennas 9.
    Usually, this work is done by an experienced engineer who performs successive tests. Advantageously, the invention makes it possible to adjust the offset or shift offset of the ejection of articles 7 automatically or manually according to the information sent by the analyzer 6.
    If the actual trajectory Tr of one of the articles 7 in one of the outlets 5 is outside the predefined set Tr-ln, the analyzer 6 transmits this information to the control system 8 of the installation 1 so that adjustment is made to bring the actual trajectory Tr of subsequent items 7 into the predefined set Tr-ln. This adjustment is performed by an operator, or automatically by the control system 8. The installation 1 according to the invention can therefore act in a closed loop on its operation to dynamically correct the ballistics observed during the ejection of articles 7.
    Depending on a physical parameter, such as a dimension or the mass of articles 7 considered, the actual trajectory Tr may vary. It is possible to anticipate the actual trajectory Tr according to the size of the article 7 or its mass. Advantageously, the predefined set Tr-in is defined as a function of an average article size 7 or the size of the article 7 under consideration. The unit weight of each article 7, measured optionally on the loading stations 2 of the installation 1, can be used for the analysis of the trajectory and also makes it possible to optimize the ballistics by statistical analysis. The different actual trajectory schemes Tr according to the weight and size of articles 7 can therefore be configured so that the ejection settings of items 7 take them into account.
    If a drift of the actual trajectory Tr, defined for example as the crossing of a threshold in the number of articles 7 outside the predefined set Tr-ln, is detected by the detector 61 and the analyzer 6, the control system 8 allows for example: - to automatically compensate for this drift by automatic adjustment of the offset while alerting the operator of this drift, - to lift a request for intervention automatically if the process of adjustment of the offset is not sufficient for a return to a normal situation, - to dynamically adapt the behavior of the installation 1 according to the production. Thus, the installation 1 becomes more versatile, since it allows a certain latitude of its use without requiring heavy and complex intervention (for example, in the large distribution with morning breaks including small light packages and vacations of the evening with large heavy packages having a very different dynamic behavior), - to detect abnormal behavior of the installation 1 or simply of an article 7 difficult to mechanize (rolling article) and to launch alerts or corrective actions for to achieve optimal operation, - to automatically correct the ejection trigger offset to account for a malfunction, including cross-belt wear or wear of a cross-belt motor. The performance of the installation 1 is thus maintained even in case of incident or wear. Beyond a certain threshold of articles 7 whose actual trajectories belong to the predefined set Tr-Out, the output 5 or the support 3 in default are for example disabled, because inoperative, and an alert issued to trigger a maintenance operation. Emergency outlets (wider, more tolerant) are advantageously provided in this case to receive the items 7 for the defective exit 5, and / or - to raise an alert to indicate to the operator that a correction could be performed automatically by the control system 8, or that a maintenance operation is necessary, no automatic correction can no longer be implemented.
    According to another exemplary embodiment of the invention, the installation 1 uses digital trigger antennas making it possible to dynamically pass different acceleration instructions to the supports 3 in addition to the ejection instructions. This makes it possible, after analyzing the real trajectories Tr, to correct the ballistics even more finely. Indeed, it is then possible to make a setting on the trigger offset and a setting on the speed of ejection and / or acceleration of the article 7 by the support 3 to obtain a real trajectory Tr included in the predefined set Tr-ln.
    It is also possible to act on the speed of the support 3 with respect to the output 5 to obtain a speed compatible with an article 7 particularly difficult to eject, for example a very heavy article whose inertia necessarily imply a bad exit trajectory . For example, reducing this speed generally facilitates proper ejection.
    The present invention also makes it possible to adapt very easily to a decrease in the speed of the installation 1. In order to limit the energy consumption of the installation 1 at such a drop in speed, the operator can lower the speed of movement of the supports 3 on the taxiway. This drop in speed is currently very complicated to manage, since it affects all tripping offsets that need to be fixed. The invention makes it possible to make this adjustment automatically by analyzing the new real trajectories Tr and by adjusting the offsets triggering the ejection.
    In order to ensure a good monitoring of the outputs 5 by the analyzer 6, the number of detectors 61 is adjusted according to the number of outputs 5 to be monitored. Nevertheless, certain technologies allow the detectors 61 to monitor several outputs 5 at the same time. This is the case of video cameras that have wide angles of action, as shown in Figure 2. Another advantage of using a camera as a detector is to make it possible to detect fake destinations reliably. Indeed, the analyzer 6 can track an article 7 to ensure that it reaches its destination through the output 5 provided.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    CLAIMS 1Installation (1) for sorting articles (7) comprising: - at least one conveyor (4) forming a circulation path for the articles (7), the conveyor comprising supports (3) adapted to carry the articles (7); ), and - at least one receiving device (5), the supports (3) being further adapted to eject successively at least some of the articles (7) in or on the receiving device (5), the ejected articles (7) describing real trajectories (Tr) with respect to the receiving device (5), the real trajectories (Tr) being likely to belong to a predefined set (Tr-Out) of potential trajectories considered to be incorrect, characterized in that it comprises in in addition: - a detector (61) adapted to provide primary information relating respectively to the real trajectories (Tr), and - an analyzer (6) adapted to use said primary information and to produce at least one secondary information representative of the membership of at least one of the real trajectories (Tr) to the predefined set (Tr-Out).
    [2" id="c-fr-0002]
    2. - Installation (1) according to claim 1, characterized in that the detector (61) comprises at least one device taken from a camera, an infrared sensor, an ultrasonic sensor, and a laser, or a combination of these devices .
    [3" id="c-fr-0003]
    3. - Installation (1) according to claim 1 or 2, characterized in that: - the primary information is images or films, and - the analyzer (6) comprises a calculation means or a computer adapted to perform a analyzing said images or said films, the secondary information being a result of the analysis.
    [4" id="c-fr-0004]
    4. - Installation (1) according to any one of claims 1 to 3, characterized in that it further comprises a control system (8) adapted to receive the secondary information and to change at least one operating parameter of the conveyor (4) using the secondary information, the real trajectories (Tr) being modified after said modification of the parameter so as not to belong to the predefined set (Tr-Out).
    [5" id="c-fr-0005]
    5. - Installation (1) according to claim 4, characterized in that the operating parameter of the conveyor (4) is adapted to change: - a speed of ejection of at least one of the items (7) relative to the device receiver (5), - an instant of triggering the ejection of at least one of the articles (7), - a lapse of time between said moment of initiation and a time reference, or - a speed of displacement of at least one of the supports (3) relative to the receiving device (5).
    [6" id="c-fr-0006]
    6. - Installation (1) according to claim 5, characterized in that - it comprises a sensor (9) adapted to provide said time reference or - the control system (8) is adapted to provide said time reference.
    [7" id="c-fr-0007]
    7. - A method of sorting articles (7) comprising the following steps: - providing at least one conveyor (4) forming a circulation path for articles (7), the conveyor comprising supports (3) adapted for carrying the articles (7), - providing at least one receiving device (5), - successive ejection of at least some of the articles (7) by the supports (3) in or on the receiving device (5), the ejected articles (7) describing actual trajectories (Tr) relative to the receiving device (5), - providing a predefined set (Tr-Out) of potential trajectories considered as incorrect, the actual trajectories (Tr) being capable of belong to the predefined set (Tr-Out), - detection to provide primary information relating respectively to the real trajectories (Tr), and - analysis of the real trajectories (Tr) from the primary information and obtaining secondary information repr sentative of belonging to at least one of the real trajectory (Tr) in the predefined set (Tr-Out).
    [8" id="c-fr-0008]
    8. - The method of claim 7, wherein the step of providing the predefined set (Tr-Out) comprises the following substeps: - recording of one of the real trajectories (Tr), the recorded trajectory being considered as correct, and - calculating the predefined set (Tr-Out) from the recorded trajectory and a tolerance threshold representative of a maximum difference between the real trajectories (Tr) and the recorded trajectory.
    [9" id="c-fr-0009]
    9. - The method of claim 7 or 8, wherein the step of providing the predefined set (Tr-Out) comprises the use of a graphical interface by an operator.
    [10" id="c-fr-0010]
    10. - Method according to any one of claims 7 to 9, further comprising a step of modifying at least one operating parameter of the conveyor (4) according to the secondary information, the actual trajectories (Tr) being modified after said modification of the parameter so as not to belong to the predefined set (Tr-Out).
    [11" id="c-fr-0011]
    11. A method according to claim 10, characterized in that, in the step of modifying at least one operating parameter of the conveyor (4), at least one physical characteristic of at least one of the articles (7). ) is used to modify said operating parameter.
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    同族专利:
    公开号 | 公开日
    WO2017093433A1|2017-06-08|
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    JP2018536606A|2018-12-13|
    US20180319603A1|2018-11-08|
    FR3044648B1|2018-01-12|
    US10377576B2|2019-08-13|
    ES2782109T3|2020-09-10|
    EP3383770B1|2020-02-05|
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    法律状态:
    2016-09-28| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-09| PLSC| Publication of the preliminary search report|Effective date: 20170609 |
    2017-11-21| PLFP| Fee payment|Year of fee payment: 3 |
    2019-11-20| PLFP| Fee payment|Year of fee payment: 5 |
    2020-11-20| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1561894A|FR3044648B1|2015-12-04|2015-12-04|ARTICLE SORTING SYSTEM COMPRISING A TRACE DETECTION AND ANALYSIS SYSTEM AND SORTING METHOD|
    FR1561894|2015-12-04|FR1561894A| FR3044648B1|2015-12-04|2015-12-04|ARTICLE SORTING SYSTEM COMPRISING A TRACE DETECTION AND ANALYSIS SYSTEM AND SORTING METHOD|
    EP16806045.7A| EP3383770B1|2015-12-04|2016-12-01|Item sorting facility comprising a system for detecting and analysing the path of the items, and sorting method|
    PCT/EP2016/079494| WO2017093433A1|2015-12-04|2016-12-01|Item sorting facility comprising a system for detecting and analysing the path of the items, and sorting method|
    ES16806045T| ES2782109T3|2015-12-04|2016-12-01|Article classification facility that includes a system for detecting and analyzing the trajectory of the articles and classification procedure|
    US15/781,299| US10377576B2|2015-12-04|2016-12-01|Item-sorting facility comprising a system for detecting and analysing the path of the items and sorting method|
    JP2018548280A| JP2018536606A|2015-12-04|2016-12-01|Article sorting equipment and system including a system for detecting and analyzing the route of an article|
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