EP1961493A1 - Procédé et dispositif destinés au tri de courriers postaux - Google Patents

Procédé et dispositif destinés au tri de courriers postaux Download PDF

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Publication number
EP1961493A1
EP1961493A1 EP08101791A EP08101791A EP1961493A1 EP 1961493 A1 EP1961493 A1 EP 1961493A1 EP 08101791 A EP08101791 A EP 08101791A EP 08101791 A EP08101791 A EP 08101791A EP 1961493 A1 EP1961493 A1 EP 1961493A1
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EP
European Patent Office
Prior art keywords
sorting
delivery
output
group
time
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.)
Withdrawn
Application number
EP08101791A
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German (de)
English (en)
Inventor
Bernd Rosenberger
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.)
Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1961493A1 publication Critical patent/EP1961493A1/fr
Withdrawn legal-status Critical Current

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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 a method for sorting mailpieces by means of a sorting system and a sorting system for the automatic sorting of articles, in particular of mailpieces.
  • a method having the features of the preamble of claim 1 and an apparatus having the features of the preamble of claim 5 are made EP 0999902 B1 known.
  • the sorting system described there is capable of carrying out various sorting plans in order to sort mailpieces. Each mail item goes through the sorting system twice. This sorting system has 205 output devices in one example, and 1000 possible destination points.
  • the mailpieces are presorted in five directions, namely for five different final sortings according to five different end sorting plans, and after pre-sorting distributed to five different output devices ("mailing memory").
  • the presorted mail items are successively fed back to the sorting system, wherein a feed order is maintained among the five output devices.
  • the mail items then pass through the sorting installation a second time and are sorted one after the other in accordance with the five sorting plans.
  • the invention has for its object to provide a method having the features of the preamble of claim 1 and a sorting system with the features of the preamble of claim 5, by which predetermined temporal boundary conditions about until when a sorting for which delivery region must have been completed, taken into account become.
  • the method according to the invention is used for sorting objects by means of a sorting system.
  • each item is transported to a respective delivery point specified on or for the item.
  • several delivery points are combined to a delivery region such that the transport paths from the sorting system to the delivery points of a delivery region comprise a common partial transport path and each delivery point belongs to exactly one of at least two predetermined delivery regions.
  • At least one delivery region is designated as the first delivery region. Objects to this first delivery region are to be brought on the move at an early stage, namely up to a predetermined first time, for example because the first delivery region is far away from the sorting system or because the articles are needed at an early stage.
  • a first and a second time are given.
  • the second time is after the first time.
  • the sorting system has several output devices.
  • a first set of dispensers is used for the first sort run, a second set for the second sort run.
  • the first set comprises a designated first group of output devices. Some, but not all of these output devices of the first set belong to this predetermined first group of output devices.
  • the second set also includes a designated first group of output devices. Some, but not all of these output devices of the second set belong to this predetermined further first group of output devices.
  • Each article is fed to the sorting plant twice and passes through the sorting system at least twice, namely in a first and a second sorting pass.
  • the sorting system recognizes the delivery point and the delivery region of each item and outputs the item to an output device of the first quantity depending on the recognized delivery points and delivery regions.
  • "Detect” may be an automatic detection, e.g. B. by OCR, a manual recognition, z. As by video coding, or a hybrid of both.
  • the sorting system automatically decides whether the delivery point of the item belongs to the first delivery region and at the same time the time at which the item is dispensed after the first sorting run in an output device, before the predetermined first time. If the delivery point belongs to the first delivery region and if the delivery time lies before the first time, the sorter discharges the article into an output device of the predefined first group, otherwise into an output device of the first set that does not belong to the first group.
  • the articles are removed from the dispensers of the first set. They are fed again to the sorting system according to a predetermined feed order.
  • the sorting system performs the second sorting pass for each item.
  • the articles to the first delivery region are output to output devices of the designated first group. After the first time these items are removed and fed again to the system for a second sorting run.
  • the invention ensures that the articles are first sorted to the first delivery region. Between the first and second times, the sorting system is not loaded with the second sorting pass for items to be sent to a delivery region other than the first delivery region.
  • the sorting system carries out the first sorting pass for articles to other delivery regions, namely until the second time point. Between the first and the second time, the sorting system thus carries out both the second sorting pass for objects to the first delivery region and the first sorting pass for articles to other delivery regions.
  • the invention makes it possible to adhere to a temporal boundary condition which specifies until when the objects to be transported to delivery points in the first delivery region have to be sorted. From this closing date, the first date is derived.
  • a time is given for each delivery region, and after the first sorting run, the output devices are emptied with the objects of this delivery region up to this time.
  • the articles are mailpieces which are provided with delivery addresses (house addresses, mailboxes or the like).
  • the items are baggage of passengers or cargo that is to be transported by a means of transport to a port or airport.
  • the objects are workpieces or production objects or components that are to be transported to different destinations within a spatially distributed manufacturing plant.
  • each item is provided with destination information.
  • the details of the destination points are stored in a database and are assigned to the objects during transport.
  • each item is provided with a unique identifier.
  • the invention is used to sort mail items to be sent to delivery points in M delivery regions 2R [1], ..., 2R [m].
  • the delivery points are, for example, delivery post offices or individual mailboxes.
  • this delivery point is printed on the mailpiece.
  • an identifier is printed or otherwise attached, which distinguishes the mail item from all other mail items of a certain period. In a database, this identifier and the delivery point of the mailing are stored.
  • an order is specified under the delivery regions.
  • the first delivery region ZR [1] that delivery region is selected which has the longest transport path from the sorting system. Therefore, the mailpieces to the first delivery region ZR [1] must first be set in motion, and therefore the sorting for these mailpieces must be completed first.
  • T (1) is earlier than T (2), T (2) ahead of T (3), and so on.
  • the mail items are to be transported to different delivery points in the M different delivery regions.
  • N (i) be the number of delivery points in the delivery region
  • j 1, ..., N
  • ZR [i] the delivery points of the delivery region ZR [i].
  • an order is specified under the or at least some delivery points of each delivery region ZR [i].
  • the order of delivery points results z. B. from a predetermined course sequence in which a deliverer visits the delivery points to deliver mail.
  • a sorting with two sorting passes (“two-pass sequencing") is performed.
  • the procedure for a sorting with two sorting runs is first described as an example for those mail items that are to be sent to delivery points of the first delivery region ZR [1]. Let V [1,1], ..., V [1, N (1)] be these N (1) delivery points.
  • the sorting is carried out with the help of a sorting system.
  • This sorting system has n1 (1) output trays for discharging mail items to the first delivery region ZR [1] after the first sorting pass.
  • This sorting system has a plurality of output devices, which are in the form of output trays, for discharging mailpieces.
  • the sorting system automatically distributes the mailpieces to be sorted to n1 output bins of the sorting system. After the first sorting run, therefore, each mail item whose address could be read and which is to be sent to a delivery point in ZR [1] is located in one of the n1 (1) output bins.
  • the sorting system distributes the mailpieces to be sorted to n2 (1) output bins of the same sorting system.
  • the n1 (1) output bins for the first sort run are numbered differently and numbered in ascending order, and the n2 (1) output bins for the second sort run also. It is possible that at least one output bin of the sorting system is used for both the first and the second sorting pass.
  • the sorting is carried out as follows:
  • the mail items to be sorted are aligned and fed to the sorting system via a feed device ("material input", "feeder”). In this case, it is not necessary to sort the mail items in advance.
  • the sorting system first performs the first sorting pass.
  • the sorting system successively reads the addresses of the mailpieces and decides whether the respective mail item is to be transported to the first delivery region ZR [1] and, if so, to which of the N (1) delivery points of ZR [1]. If an address can not be recognized unambiguously during automatic reading, it is read and input manually in a video coding station.
  • the sorting system preferably temporarily stores the detected delivery point, for example by printing a stitch code on the mailpiece or storing an identification of the respective mailpiece and the respectively recognized delivery point in a data memory.
  • the Identification of the mailpiece preferably comprises a feature vector with features of the surface of the mailpiece.
  • the first sort pass is completed for the mail items at ZR [1] after each mail item has been ejected into one of the n1 (1) output bins.
  • the mailpieces are removed from the n1 (1) output compartments and returned to the feeder. In this case, all the mail items in the first output tray are first removed from this and fed back to the feeder, then the mail items in the second output tray and so on, until the mailpieces have been removed from all n1 (1) output compartments.
  • the sorting plant starts with the second sorting pass.
  • the sorting system again recognizes the respective delivery point of each mail item, for example by reading the bar code or by accessing the stored information.
  • the sorting system discharges each mail item into one of the n2 (1) output bins for the second sorting pass, depending on the detected delivery point.
  • This tuple has the following meaning: After the second sorting run, all mailpieces for the delivery point V (j) are located in the sorting bin s1 [1, j], at the position s2 [1, j] in the bin s1 [1, j]. The position is measured in the stacking direction of the bin.
  • the mail items at the delivery point with the tuple (s1 [1, j], 1) are at the bottom in the sorting bin s1 [1, j], then the mail items at the delivery point with the tuple (s1 [1, j] , 2) and so on.
  • a marker is set to distinguish these two partial stacks in the output tray.
  • the sorting system with two sorting runs can sort out and send sorted mailpieces for a maximum of n1 (1) * n2 (1) mail items to ZR [1].
  • the first sorting pass it ejects all mail items to be transported to a delivery point with an encoding (s1 (1), 2) into the second of the n1 (1) output bins, and so forth.
  • all mailpieces are sorted solely on the basis of the second number in the coding.
  • n1 (1) * n2 (1)> N (1) various methods are possible to achieve, by two sorting runs, that after the second sorting run, the mailpieces are output in the n2 (1) sort bins given sorting plan is met.
  • n1 (1) 25 output bins G1 [1] .1,..., G1 [1] .25 of a group G1 [1] of output bins available.
  • n2 (1) 25 output pockets G2 [1] .1,..., G2 [1] .25 are available.
  • n1 (1) 25 output bins (inside the output bin in an unpredictable and random order) as follows: output tray Contents of the output bin: Mail to the following delivery points G1 [1] .1 V [1,1], V [1,25], V [1,49], ..., V [1,553], V [1,577] G1 [1] .2 V [1,2], V [1,26], V [1,50], ..., V [1,554], V [1,578] G1 [1] .3 V [1,3], V [1,27], V [1,51], ..., V [1,555], V [1,579] ... ...
  • the mail items are first fed from the first delivery compartment G1 [1] .1 and back to the sorting system.
  • output compartments are - after the sorting and discharge of all mail items from the compartment G1 [1] .1 - the following postal items: G2 [1] .1 G2 [1] .2 G2 [1] .3 ... G2 [1] .24 G2 [1] .25 V [1,1] V [1.25] V [1.49] ... V [1.553] V [1.577]
  • the first line indicates the output tray
  • the second line the contents of the output tray (mail to the aforementioned delivery points).
  • the mail items to the delivery point V [1,2] are located above the mail items at the delivery point V [1,1], because the mail items at V [1,2] have been discharged later than the mail items at V [1,1].
  • n1 output compartments for the first sorting pass are subdivided into M groups of distribution compartments, namely into a first group G1 [1] with n1 (1) output compartments for the first delivery region ZR [1], a second group G1 [2] with n1 (2) Output trays for the second delivery region ZR [2], ..., an M-th group G1 [M] with n1 (M) output trays for the Mth delivery region.
  • n1 n1 (1) + ... + n1 (M).
  • the first sorting pass is carried out as described above for all mailpieces.
  • Each mail item for the first delivery region ZR [1] is output to one of the n1 (1) output bins for the first delivery region ZR [1], each mail item for the second delivery region ZR [2] is placed in one of the n1 (2) output bins for the second delivery region and so on.
  • first the mail items from the n1 (1) output bins for the first delivery region ZR [1] are returned to the feeder, namely first the mail items from the first delivery bin G1 [1] .1 for the first delivery region ZR [1], then the mail items from the second output tray G1 [1] .2 for the first delivery region ZR [1] and so on.
  • T1 (1) is before T1 (2), T1 (2) is ahead of T1 (3) and so on.
  • T1 (i) is set so that there is a time interval ⁇ T (i) between T1 (i) and T (i), ie that T (i) is later than T (i) by ⁇ T (i).
  • Fig. 1 illustrates the timing.
  • T1 (2) T (1)
  • T1 (3) T (2)
  • the sorting system in the first sorting pass sends mail for the delivery region ZR (1) to the output bins of the delivery Group G1 [1].
  • the mail items are removed from the compartments of G1 [1], returned to the sorting system and discharged into the compartments of the group G2 [k (1)] in the second sorting cycle.
  • the broadcasts are dropped into the slots of G2 [k (1)] and can be sent.
  • the sorting system in the first sorting pass sends mail for the delivery region ZR (2) into the output bins of the group G1 [2].
  • the mail items are removed from the compartments of G1 [2], returned to the sorting system and discharged into the compartments of the group G2 [k (2)] in the second sorting cycle.
  • the broadcasts are dropped into the slots of G2 [k (2)] and can be sent.
  • L groups of output bins are provided for the output of the second sorting pass with L ⁇ M.
  • L 2.
  • the first group G2 [1] consists of n2 (1) output bins
  • the sorting system starts at time T1 (1) to carry out the second sorting run for the mailpieces to the first delivery region. It can already start with the second sorting run, while mail items from the sorting compartments to be emptied later are taken from the groups G1 [1] .2, G1 [1] .3,... And returned to the feeder.
  • the sorting system again recognizes the respective delivery point of each mail item, for example by reading the bar code or on the stored information (labeling of mailpieces and delivery points).
  • first all mail items are returned to the feed device to the first delivery region ZR [1]. These mail items were transferred to the n1 (1) output bins of group G1 [1] in the first sorting run. Therefore, in the second sorting pass, the sorting system first processes all the mailpieces for the first delivery region ZR [1].
  • the sorting system discharges each mail item for the first delivery region into one of the n2 (k (1)) output bins of the group G2 [k (1)].
  • the sorting system issues a message. Because between T1 (1) and T (1) of the period .DELTA.T (1), the sorting system sets this message at the latest time T1, so in good time. Let T-M (1) be the time this message was issued. As soon as the sorting system has issued this message, it begins to remove the mail items from the n2 (k (1)) output trays of group G2 [k (1)]. The transport of these sorted mail items to the first delivery region is triggered. All mail items for the first delivery region are located in the output bins of group G2 [k (1)]. Only from these n2 (k (1)) output compartments are mailpieces to be taken and sent on the journey to their respective delivery points.
  • G2 is [k (2)] # G2 [k (1)], because the k (1) output pockets of G2 [k (1)] are still filled with the mailpieces for the first delivery region ZR [1].
  • the sorting system discharges each item of mail for the second delivery region ZR [2] into one of the n2 (k (2)) output compartments of the group G2 [k (2)].
  • the sorting system again sets one Message.
  • the mail items are then taken from the n2 (k (2)) output bins of group G2 [k (2)].
  • the transport of these sorted mail items to the second delivery region ZR [2] is triggered.
  • the mail items After the mail items have been issued to the second delivery region ZR (2), the mail items are output to the third delivery region ZR (3), again into the now emptied output compartments of the first group G2 [1]. After that, the mail items are delivered to the fourth delivery region ZR (4) in the now emptied output compartments of the second group G2 [2], then the mail items to the fifth delivery region ZR (5) into the now emptied output compartments of the first group G2 [1]. and so on.
  • the inventive method loads the workers or handling machines that empty the output compartments after the second sorting, more uniform and avoids strong fluctuations in workload and idle times.
  • the operators or automatic handling machines do not have to wait until the sorting plant has completely completed the second sorting pass, and then have to empty all the n2 sorting bins in a short time.
  • the sorting system continues to operate and carries out the second sorting run for mailpieces to the second, then to the third, delivery region. It can also complete the first sorting run for mailings to later delivery regions. Then, only the output bins of group G2 [k (2)] need to be emptied and the sorter continues to operate.
  • the delivery region which has the longest transport path from the sorting system is selected as the first delivery region.
  • the sorting system first discharges the mailpieces to the first delivery region.
  • the mail items to the first delivery region are therefore first sorted ready and can be sent on the trip.
  • the delivery region with the second longest transport path is used as the second delivery region, and so on.
  • This sorting plan assigns a tuple (s1 [i, j], s2 [i, j]) to each delivery point V [i, j] from the delivery region 2R [i].
  • the first index indicates in which sorting bin the mailpieces are to be ejected to the delivery point V [i, j] in the second sorting pass.
  • the second index s2 [i, j] gives at which position in the sorter s1 [i, j] the mail items are at the delivery point V [i, j] after the second sorting run.
  • each mail item is delivered to a delivery point of the delivery region ZR [i] in one of the n1 (i) output bins used for the delivery region ZR [i].
  • Each output bin thus belongs either to exactly one of the M groups G1 [1], ..., G1 [M] or to one of the L groups G2 [1], ..., G2 [L].
  • This embodiment requires n1 + n2 output bins.
  • This configuration makes it possible to arrange the output trays of the M groups G1 [1], ..., G1 [M] close to the feeder. As a result, only short transport paths are required in order to feed the mail items back to the feed device after the first sorting pass.
  • the output compartments of the L groups G2 [1], ..., G2 [L] can be placed close to the location where the sorted mailpieces are brought into transport to be transported to the delivery regions.
  • the first sorting run for mailpieces to a particular delivery region may be repeated if the first sorting pass fails in the first execution, e.g. B. because of a jam in the sorting or because of an error when removing the mail, without having to repeat the entire first sorting run for all mail.
  • Another embodiment saves output pockets.
  • Some or all output compartments of the L groups G2 [1], ..., G2 [L] are not only used in the second sorting run, but also in the first sorting run.
  • L 2.
  • M 7.
  • the sorting machine has a total of only M + 1 groups of 25 output bins each.
  • the mail items are discharged to the first delivery region ZR [1] into the n2 (1) output bins of the group G2 [k (1)]. These output trays are used only in the second sorting pass. Until time T1 (1), the output bins of group G1 [1] are emptied and are available again. After the time T1 (1), no mail items are first discharged to ZR [1], but remain in a waiting loop in the sorting system. Therefore, the output bins of G1 [1] are reused in the second sorting pass to discharge the mailpieces to ZR [2].
  • the group G1 (1) is thus also used as group G2 [k (2)].

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EP08101791A 2007-02-20 2008-02-20 Procédé et dispositif destinés au tri de courriers postaux Withdrawn EP1961493A1 (fr)

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Application Number Priority Date Filing Date Title
DE102007008267A DE102007008267A1 (de) 2007-02-20 2007-02-20 Verfahren und Vorrichtung zum Sortieren von Postsendungen

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EP1961493A1 true EP1961493A1 (fr) 2008-08-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8217294B2 (en) 2007-12-05 2012-07-10 Siemens Aktiengesellschaft Method and device for sorting flat mail items

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19943362A1 (de) 1999-09-10 2001-03-22 Siemens Ag Einrichtung und Verfahren zum Ordnen von flachen Sendungen
EP0999902B1 (fr) 1997-08-06 2002-02-27 Siemens Aktiengesellschaft Procede de triage d'envois
US20050218046A1 (en) 2003-11-19 2005-10-06 Northrop Grumman Corporation System and method for sequencing mail in delivery point order

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0999902B1 (fr) 1997-08-06 2002-02-27 Siemens Aktiengesellschaft Procede de triage d'envois
DE19943362A1 (de) 1999-09-10 2001-03-22 Siemens Ag Einrichtung und Verfahren zum Ordnen von flachen Sendungen
US20050218046A1 (en) 2003-11-19 2005-10-06 Northrop Grumman Corporation System and method for sequencing mail in delivery point order

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8217294B2 (en) 2007-12-05 2012-07-10 Siemens Aktiengesellschaft Method and device for sorting flat mail items
US8772664B2 (en) 2007-12-05 2014-07-08 Siemens Aktiengesellschaft Method and device for sorting flat mail items

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