EP2569099B1 - Méthode pour optimiser un processus de traitement et de transport du courrier en bacs utilisant un tri stratifié - Google Patents

Méthode pour optimiser un processus de traitement et de transport du courrier en bacs utilisant un tri stratifié Download PDF

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Publication number
EP2569099B1
EP2569099B1 EP11714066.5A EP11714066A EP2569099B1 EP 2569099 B1 EP2569099 B1 EP 2569099B1 EP 11714066 A EP11714066 A EP 11714066A EP 2569099 B1 EP2569099 B1 EP 2569099B1
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EP
European Patent Office
Prior art keywords
sorting
mailpieces
machine
outlets
mail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP11714066.5A
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German (de)
English (en)
French (fr)
Other versions
EP2569099A1 (fr
Inventor
Didier Tresse
Nicolas Basset
Jacques Petit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solystic SAS
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Solystic SAS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C3/00—Sorting according to destination

Definitions

  • the invention relates to the field of postal sorting and more particularly the automatic sorting of mail according to which mail items are collected and sorted in a first mail processing center to be transported in storage bins to second data processing centers.
  • mail attached to the first mail processing center and wherein sorting the mail in the first center consists of separating the mail items in a sorting machine having a plurality of sorting outlets each using at least one storage bin to form a a number of groups of storage bins in which mail items are stored, these storage bin groups being intended respectively for said second mail processing centers, and wherein the sorting machine is driven by one or more sorting cycles to segment each group of storage bins destined for a second mail processing center in such a way as to differentiate the mail items stored in these bins according to a plurality of delivery destinations associated with said second mail processing center.
  • the invention relates more particularly to a method for optimizing the filling of bins in such a mail processing process especially in the case where the mail items are collected and sorted in a sorting center departure where is carried out sorting routing for be transported by plane, truck or train in storage bins to arrival sorting centers where sorting is carried out.
  • a sorting center In an arrival sorting center, the mail items arrive in storage bins already pre-sorted by delivery destination which reduces the time required to perform the sorting process in the arrival sorting center.
  • Pre-sorting in the departure sorting center is also known as the name of "outward sorting" while the sorting for the preparation of the postman's tour in an arrival sorting center is known as "inward sorting".
  • a sorting machine receives as input a flow of mail items arranged in random order, and provides an ordered flow of mail items at the exit, i.e., a stream of mail items arranged in a predetermined order.
  • the predetermined order generally corresponds to a separation by delivery destination groups.
  • the predetermined order therefore corresponds to a sequential distribution of mail items by one or more factors.
  • each distribution sorting center attached to each other constitute a postal processing platform that can be spread over a more or less extensive geographical area, for example a national area.
  • each distribution sorting center also constitutes a sorting center with respect to the other distribution sorting centers of the platform.
  • sorting machines that are used in a mail processing platform for sorting are provided with a small number of sorting outlets due to cost and space constraints.
  • These storage bins have a storage capacity of about 50 mail items each. Sorting mail items in such a sorting machine may require several sorting cycles and the volume of mail to be processed may require several dozen storage bins per sorting outlet.
  • a sorting conveyance machine therefore normally comprises a destacking magazine receiving a batch of mail items to sort such as large letters or magazines with or without a paper or plastic envelope; a number of sorting outlets, which are respectively fed in empty removable bins for storing these mail items sorted; and a sorting conveyor interposed between the unstacking magazine and the sorting outlets, and controlled by an electronic processing unit to direct each mailpiece to be sorted to a respective sorting outlet on the basis of an identifier for delivery destination code, normally printed on the mail piece, and an assignment table, kept in memory in the electronic processing unit, correlating the code to a given sorting output of the machine.
  • groups of storage bins comprising a large number of partially filled bins are formed because the segmentation of bins in a group of bins intended for a sorting distribution center is generally done. by a change of bin in the sorting outlet considered of the machine. If it is assumed that several dozen delivery destinations can be associated with a distribution sorting center, several tens of partially filled storage bins can be produced at the end of the sorting process for each distribution sorting center. These partially filled storage bins unnecessarily occupy space in the means of mail transport which results in additional costs for the operation of the postal processing platform.
  • the object of the invention is therefore to propose a method for optimizing a mail processing process as indicated above by minimizing the number of bins to be transported from one postal processing center to another postal processing center while keeping the same level of separation of mail items.
  • Another object of the invention is to provide such a method to reduce the proportion of partially full tanks after sorting routing including without penalizing an effective use sorting machines.
  • the invention is based on the observation that in a sorting process, a major part (approximately 80%) of the mail is spread over a few main delivery destinations (approximately 20%), the rest of the mail being distributed over a large number of other secondary destinations of delivery. It has therefore appeared advantageous to take into account these differences in filling rates (differences in the volume of mail by destination) and to share the sorting section of the postal sorting machine into a first zone comprising a large number of sorting outlets for receiving mail items from high-fill destinations and a second area with a small number of sorting outlets to temporarily receive mail items from low-fill destinations.
  • the idea underlying the invention is therefore to use the space available in the partially filled bins of mail items of a main destination produced at the end of a first sorting cycle to store there, after inserting a physical separator, the mail items of the secondary destinations that are related to that main destination during a second sort cycle.
  • a related delivery destination is a destination that is conveyed by the same means of transport as the main destination. Better filling trays can reduce the proportion of partially filled tanks and thus overall reduce the number of trays to transport.
  • the subject of the invention is therefore a method for optimizing a mail processing process in a sorting machine, characterized in that it comprises the following steps: submitting mail items to a first sorting cycle in a machine according to which a plurality of first sorting outlets of the sorting machine are respectively assigned to a plurality of first delivery destinations and at least one further sorting output of the sorting machine is assigned to a plurality of second delivery destinations, directing through the sorting machine, separators of physical separation of mail items respectively to first sorting outlets and recycling incoming mail items from said other sorting output to the input of the sorting machine and subjecting them to a second sorting cycle according to which the plurality of first sorting outputs are respectively assigned to the plurality of seconds delivery destinations.
  • the sorting outlets automatically operate interchangeable and removable storage bins, for example using an automatic tray handling system running along each side of the sorting sort row of sorting machines, at the end of second sort cycle, the mail items respectively of a first main destination and a second destination related to this main destination are sorted into layers in the same tray being separated by a spacer.
  • each item of mail is recycled at most once in the machine which helps to reduce the risk of mail damage in addition to limiting the operating costs of the machine.
  • the division of the sort section can be optimal when the quantity P is determined on the basis of the N / M ratio with the condition that N-MxP remains greater than 1.
  • the quantity P is determined on a machine sorting system whose number of sorting outlets is predefined. The size P can therefore be adjusted so that the mail items are recycled in principle only once.
  • the method according to the invention can be adapted to operate on repeated sorting cycles the second sorting output by example.
  • the figure 1 schematically illustrates a sorting machine with sorting outlets.
  • the figure 2 schematically illustrates a configuration of a postal processing platform with a sorting center departure and a plurality of attached arrival sorting centers.
  • the figure 3 schematically illustrates an assignment of sorting outlets of the machine for a first sorting cycle with the method according to the invention.
  • the figure 4 schematically illustrates another assignment of sorting outlets of the machine for a second sorting cycle with the method according to the invention.
  • the figure 5 schematically illustrates yet another assignment of sorting outlets for a third sorting cycle with the method according to the invention.
  • the figure 6 schematically illustrates the main steps of the optimization method according to the invention.
  • the postal sorting machine illustrated on the figure 1 is classic in itself. It comprises an entrance with a depiling magazine 1 in which are introduced mail items C arranged in stack on edge. The mailpieces C are unstacked and placed in series one behind the other, for example with a step (space between the front edge of two consecutive articles) constant in a sorting conveyor 3 on the path of which is provided a recognition system 2 automatic mailing address. Each mail item is then directed by the sorting conveyor 3 to a sorting outlet S1, S2, S3 ... S80 as is well known.
  • the sorting machine comprises eighty sorting outlets that operate interchangeable or removable bins in which the mail items are stored flat.
  • the figure 2 illustrates a postal processing platform with twenty six mail centers referenced CT. It is understood that the method according to the invention can be applied to smaller or larger platforms.
  • the center referenced CTi is a sorting center departure which is attached to twenty five other sorting centers arrival (the center CTi also constituting a sorting center in itself).
  • the center CTi also constituting a sorting center in itself.
  • CT1, CT2 and CT26 only three other arrival sorting centers are illustrated, namely CT1, CT2 and CT26, for the sake of clarity of this Fig.
  • the number of delivery destinations in each arrival sorting center was a multiple of the segmentation pitch P and in the case of the illustrated example , nine delivery destinations were considered for each direction.
  • delivery destination it is necessary to understand a group of distribution addresses which may correspond to one or more rounds of the postman.
  • A1, A2, A3, A'1 ... A "3 are represented in which A1, A2, A3 are main destinations with a high filling ratio representing a major part (80 % for example) of the mail volume, A'1, A'2, A'3 are destinations related to destinations A1, A2, A3 with lower filling ratio representing a smaller volume of mail (between 10 and 20% for example) and A "1, A" 2, A "3 are still destinations related to destinations A1, A2, A3 and still having a low filling ratio representing an even smaller volume of mail (less than 10% for example) .
  • the same representation of delivery destinations for CT2 with destinations B1, B2,... B "3 and for CT26 with destinations Z1, Z2,... Z" 3 was used.
  • the routing sorting process starts with a step 10 (on the figure 6 ) setting of the sorting machine to prepare a first sorting cycle.
  • this step 10 further sorting cycles subsequent to the first sort cycle may also be prepared.
  • step 6 the sorting outlets S1, S2, S3 are assigned to the delivery destinations A1, A2, A3 respectively for the first sorting cycle.
  • the sorting outlets S4, S5, S6 are assigned to the delivery destinations B1, B2, B3, and so on up to the sorting outlets S76, S77, S78 with the delivery destinations Z1, Z2, Z3.
  • step 10 therefore consists in allocating P (P greater than 1) successive sorting outlets (in the case of example P is equal to 3) to the first P delivery destinations of each direction representing the largest volume of mail important, the P sorting outlets assigned to a direction being of course distinct from the P sorting outlets assigned to another direction as visible on the figure 3 .
  • the S79 reserve sort output is assigned to the following delivery destinations P (in the order corresponding to a decreasing volume of mail) for all the directions, here therefore at A'1, A'2, A'3 , B '1, B' 2, B'3 ... Z'3.
  • the reserve output S80 is assigned to the other following delivery destinations (in this order corresponding to a decreasing volume of mail) for all the directions, here therefore at A "1, A” 2, A “3 .. ..Z "3.
  • the above assignment of the sorting outputs in the first sorting cycle amounts to separating the mail flow on a first extended sorting area (S1 to S78) which receives the major part of the mail (80% for example). of the total volume of mail to be separated), on a second zone of restricted sort (S79) which receives a much smaller part of the mail (about 10 to 20% of the volume) and a third sorting area (S80) that receives the rest of the mail is less than 10% of the volume . It is understood that the proportions 80%, 20% and 10% are given by way of non-limiting example for the invention.
  • the sorting process continues in a sorting step 11 in which the mail items are subjected to the first sort cycle in the machine, and these mail items are sorted and collected in sorting outlets 4 shown in FIG. figure 3 .
  • Line L on the figure 3 symbolizes a system of automatic handling of full bins and empty bins that serves sorting outlets as is well known.
  • the bins being filled in the sorting outlets are arranged on top of the line L while the bins full of mail items and extracts sorting outlets are arranged under the line L.
  • the bins associated with a particular sorting output are arranged in column under this sorting output.
  • step 12 The sorting process is continued in step 12 by the introduction of interleaves 5 (or separators for storage bins) arranged in the input stack 1 of the machine and then by a control of the sorting machine capable of making directing each interlayer 5 into each tray 4 currently being filled in a sorting outlet of the first sorting section, namely S1 to S78 as illustrated in FIG. figure 4 .
  • interleaves 5 or separators for storage bins
  • the sorting process is then continued in step 13 by recycling the mail items stored in the bins of the standby output S79 (second area of the sorting section) at the input of the machine for a second sorting cycle. these mail items.
  • the setting of the machine for assigning the sorting outlets for the second sorting cycle can be provided in step 10 above as indicated above.
  • the assignment of the sorting outlets in this second sorting cycle consists in assigning the sorting outlets S1, S2, ... S78 (of the main sorting section) to the delivery destinations A'1, A'2, A '. 3, B'1, B'2, B'3, ... Z'2, Z'3 as illustrated on the figure 4 .
  • the consecutive sorting outlets of the first sorting section are assigned to the first P destinations. related from this direction.
  • Mail items taken from exit S79 and recycled at the entrance to the machine are therefore submitted (step 14 on the figure 6 ) in a sorting machine in the second sorting cycle to be sorted in the sorting outlets S1 to S78 as illustrated in FIG. figure 4 .
  • new bins 4 full of mail items were produced by sorting outlets S1 to S78 and bins 4 are being filled in these sorting outlets.
  • step 15 for inserting tabs 5 at the input of the machine sorting and control machine to direct these tabs each to a partially full storage bin at each sorting outlet.
  • S1 to S78 as visible on the figure 5 .
  • the sorting process is then continued in step 16 by recycling the mail items stored in the bins of the standby output S80 (third area of the sorting section) at the input of the machine for a third sorting cycle. These mail items.
  • the figure 5 illustrates the third cycle of sorting.
  • the sorting outlets S1 to S78 are assigned to the delivery destinations A "1, A" 2, A “3, B” 1, B “2,... Z” 1, Z "2 , Z "3. Therefore, P consecutive outputs are assigned to the P second related destinations of each direction.
  • step 17 we submit in step 17 ( figure 6 ), the mail items taken from the reserve output S80 and recycled to the input of the sorting machine in the third sorting cycle to sort them into the sorting outlets S1 to S78 of the main sorting section.
  • step 17 the sorting process is terminated.
  • a number of trays 4 of mail items having a single partially filled container were produced.
  • CT1 For each direction such as CT1, therefore produces at most three partially full bins on all bins filled with mail items and corresponding to this direction.
  • the mail items corresponding to the different delivery destinations such as A1, A'1, A "2 are differentiated in the bins by the tabs 5 which makes it possible, during the subsequent distribution sorting, to easily extract the mail items from the bins while maintaining the order of the pre-sorting carried out during the sorting process.
  • a signaling label may be affixed to the bins comprising an interlayer for separating two strata of mail items so that this separation is easily identifiable by a machine operator. when sorting distribution.
  • the proportion of partially filled bins can reach about 25% of the total bins produced by sorting.
  • the method of optimizing the sorting process according to the invention makes it possible to reduce this proportion to around 9%, which contributes to reducing the cost of transporting mail items between the various sorting centers of a platform.
  • the sorting step P of the sorting outlets depends in principle on the number of sorting outlets available in the sorting machine, the number of delivery destinations to be covered and the number of mail processing centers to be used.
  • the segmentation of the sorting outlets of the example above corresponds to a maximum operating efficiency of a sorting machine having 80 sorting outlets to sort out 234 delivery destinations spread over 26 postal processing centers.

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EP11714066.5A 2010-05-10 2011-03-15 Méthode pour optimiser un processus de traitement et de transport du courrier en bacs utilisant un tri stratifié Not-in-force EP2569099B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1053626A FR2959680B1 (fr) 2010-05-10 2010-05-10 Methode pour optimiser un processus de traitement et de transport du courrier en bacs utilisant un tri stratifie
PCT/FR2011/050521 WO2011141651A1 (fr) 2010-05-10 2011-03-15 Méthode pour optimiser un processus de traitement et de transport du courrier en bacs utilisant un tri stratifié

Publications (2)

Publication Number Publication Date
EP2569099A1 EP2569099A1 (fr) 2013-03-20
EP2569099B1 true EP2569099B1 (fr) 2014-08-13

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EP11714066.5A Not-in-force EP2569099B1 (fr) 2010-05-10 2011-03-15 Méthode pour optimiser un processus de traitement et de transport du courrier en bacs utilisant un tri stratifié

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US (1) US8674252B2 (es)
EP (1) EP2569099B1 (es)
JP (1) JP2013526402A (es)
AU (1) AU2011251889B2 (es)
DK (1) DK2569099T3 (es)
FR (1) FR2959680B1 (es)
RU (1) RU2511538C1 (es)
WO (1) WO2011141651A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10112217B2 (en) * 2016-07-29 2018-10-30 Siemens Industry, Inc. System and method to process return-to-sender (RTS) mail
CN109801452A (zh) * 2019-03-14 2019-05-24 江西广炅中药饮片有限公司 一种药品智能分拣系统
CN112354868A (zh) * 2020-10-15 2021-02-12 西安邮电大学 一种自动化分拣系统的二次分拣方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190685A (en) * 1981-05-19 1982-11-24 Tokyo Shibaura Electric Co Sorter for letter mail
JPS5992072A (ja) * 1982-11-19 1984-05-28 郵政大臣 区分方式
JP2607777B2 (ja) * 1991-07-31 1997-05-07 郵政大臣 郵便物処理システム
DE59705043D1 (de) * 1996-07-26 2001-11-29 Siemens Ag Verfahren zum Sortieren von Versandstücken
GB2335639B (en) * 1998-03-27 2002-06-12 Post Office Sorting system
IT1307718B1 (it) * 1999-10-07 2001-11-14 Elsag S P A Metodo di ottimizzazione di un processo di sequenziazione di oggettipostali.
JP2002320924A (ja) * 2001-04-26 2002-11-05 Hitachi Ltd 紙葉類区分装置
EP1417044B1 (de) * 2001-08-13 2005-10-26 Siemens Aktiengesellschaft Verfahren zum sortieren von sendungen nach ihren verteiladressen
US20040040898A1 (en) * 2002-08-30 2004-03-04 Kechel Ottmar K. Method and system for sorting manual mail
DE10310760B3 (de) * 2003-03-12 2004-09-02 Siemens Ag Verfahren zum Sortieren von Sendungen nach ihren Zieladressen
DE10317855A1 (de) * 2003-04-16 2004-11-18 Rkb Reparatur- Und Karosseriebau Gmbh Verfahren und Einrichtung zum Verteilen von Paketen o. dgl. Beförderungsgütern
US20050045531A1 (en) * 2003-09-03 2005-03-03 Siemens Aktiengesellschaft Method for the manual merging of manually processable mail flats
DE102004035365A1 (de) * 2004-07-21 2006-02-16 Deutsche Post Ag Verfahren und Vorrichtung zum Sortieren von Postsendungen
US8269125B2 (en) * 2005-06-02 2012-09-18 Lockheed Martin Corporation Mixed product delivery point sequencer and method of use
US20090161910A1 (en) * 2005-10-27 2009-06-25 Slemens Aktiengesellschaft Method and Device for Reading Addresses of Mail Items

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Publication number Publication date
EP2569099A1 (fr) 2013-03-20
US8674252B2 (en) 2014-03-18
RU2511538C1 (ru) 2014-04-10
AU2011251889A1 (en) 2012-11-08
JP2013526402A (ja) 2013-06-24
AU2011251889B2 (en) 2013-05-09
US20120067790A1 (en) 2012-03-22
FR2959680A1 (fr) 2011-11-11
FR2959680B1 (fr) 2012-04-20
WO2011141651A1 (fr) 2011-11-17
DK2569099T3 (en) 2014-11-17

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