EP2366464A1 - Procédé de tri et dispositif de tri doté de dispositifs de sortie pouvant être vidés de manière ergonomique - Google Patents

Procédé de tri et dispositif de tri doté de dispositifs de sortie pouvant être vidés de manière ergonomique Download PDF

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Publication number
EP2366464A1
EP2366464A1 EP11158938A EP11158938A EP2366464A1 EP 2366464 A1 EP2366464 A1 EP 2366464A1 EP 11158938 A EP11158938 A EP 11158938A EP 11158938 A EP11158938 A EP 11158938A EP 2366464 A1 EP2366464 A1 EP 2366464A1
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EP
European Patent Office
Prior art keywords
sorting
output
output device
plan
attribute value
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EP11158938A
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German (de)
English (en)
Inventor
Zsolt Balogh
Armin Zimmermann
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Siemens AG
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Siemens AG
Siemens Corp
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Publication of EP2366464A1 publication Critical patent/EP2366464A1/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Withdrawn legal-status Critical Current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
    • B07C3/02—Apparatus characterised by the means used for distribution
    • B07C3/06—Linear sorting machines in which articles are removed from a stream at selected points

Definitions

  • the invention relates to a method and a device for the ergonomic sorting of objects in two sorting runs, in particular flat mail items.
  • a method having the features of the preamble of claim 1 and an apparatus having the features of the preamble of claim 11 are made US 2006/0259186 A1 known.
  • a sorting system which sorts mailpieces in several sorting runs.
  • Fig. 1 shows this sorting 1.
  • a singler 2 separates the mail.
  • a reader 3 reads the respective address on the mailpiece.
  • the mail items are injected into compartments ("bins") of an "injection carrousel 4" and then pass into compartments ("bins 5") of another "carrousel 6".
  • the mail items arrive in a respective "tray”.
  • Fig. 2 illustrates the first sorting pass.
  • a sorting output (“sort outlet”) is selected for a mail item, for which a sorting plan for the first sorting pass is used.
  • step 28 the mail item is discharged into the selected sorting output and enters the respective container.
  • step 29 that order is stored under internal identifiers of mail items which describes the order of the mailpieces in the sorting output.
  • Fig. 3 illustrates the second sorting pass.
  • step 32 a sorting output is selected for the mail item, for which a sorting plan for the second sorting pass is used.
  • step 34 the mail item E1 is transported to the selected sorting exit and spent there in a container.
  • step 35 the level is measured after discharging E1 in such a container.
  • step 36 the measured level is compared with a barrier S1. If the level is above S1, the filled container becomes definitely replaced by an empty container.
  • step 38 If the level is below S1, but above a barrier S2 (step 38), it is checked whether there is still enough time to replace the filled container with an empty container (steps 39, 40). This time depends on when the next mail item E2 and when the next but one mail item E3 reach the same sorting output. For this check, the distance is used below the square digits of mail in the order previously determined. If necessary, the ejection of the mail E2 or even E3 is prevented in the filled container until the filled container has been replaced by an empty container (step 43), section [0044]). It is also possible that the item of mail E2 or the item of mail E3 are discharged into an overflow compartment.
  • the fill levels can be predicted even before the second sorting pass, because the thicknesses of the mailpieces were measured in the first sorting pass and the order in which the mailpieces in the second sorting pass through the sorting system is known, cf. Section [0052].
  • EP 0948416 B1 a sorting procedure is described.
  • mailpieces are sorted according to their delivery addresses. An order among the possible sorting addresses is specified.
  • the mail items go through the sorting system in a first and in two further sorting runs. After the first and after the second sorting run, the mailpieces are again fed to the sorting system.
  • Each sorting run uses a sorting plan.
  • the respective sorting run for each further sorting run is only generated after the first sorting run. For this generation is counted in the first sorting run, how many mail items are to be delivered to each delivery address. These counting results are evaluated in order to generate a sorting plan for each further sorting pass, which ensures an optimized allocation of the output devices.
  • WO 02/00362 A2 become a sorting arrangement and a sorting method for sorting mailpieces in a single Sorting pass ("single pass") described.
  • a sorting system with several output devices (“bins") and a reader.
  • Several such sorting plants are connected to the sorting arrangement.
  • A2 has a sorting next to the output devices ("bins") still buffer (“cells 402"), the latches 402 are arranged in a "cell rack", see. Fig. 4.
  • Each buffer 402 are assigned possible delivery points and a maximum level. If a buffer 402 is filled to the maximum fill level, then another mail item that should actually reach this buffer 402 is directed into an overflow buffer ("overflow cell 402a").
  • This overflow buffer 402a is logically connected to the actually provided pocket 402.
  • a controller (“control unit 112") then allocates an overflow buffer 402a to a buffer 402 during sorting if, during the sorting run, the buffer 402 is filled and another mail item should actually arrive in this buffer 402.
  • a system operator is signaled in which buffer 402, 402a postal items for a particular delivery point area have been discharged.
  • EP 785828 B1 All output devices are arranged in one strand. If a sorting class is assigned a plurality of output devices, objects of this sorting class are first discharged into a first assigned output device until this output device reaches a predetermined fill level. Subsequently, items are transferred to a second associated dispenser removed and so on. Thereafter, all dispensers are emptied.
  • each sorting class is assigned in each case an output device of the first and the second string.
  • the objects of a sorting class are alternately discharged into the first and the second strand.
  • a sorting system is used with two groups of mail bins, namely a group with larger capacity bins and a group with smaller capacity bins, cf. Fig. 2 and Fig. 4.
  • a reader (“reader device 112") reads the ZIP code on each mailpiece.
  • a "reader database 120" contains the delivery point identifiers on a mailpiece.
  • a "bin configuration database 128" contains the respective dimension of each output unit ("bin dimensional data").
  • a sort scheme determines which output devices are larger and which small capacity output devices are available in a sort run.
  • these mailpieces are divided into groups.
  • the mailings of a group are all addressed to the same area of destination, e.g. Depending on the ZIP code, cf. Fig. 4. It counts how many postal items are in each group.
  • the sorting run for sorting is now carried out, and for this purpose a sorting plan is generated in advance ("step 308").
  • the available high capacity output devices the number of which is called “highCapacityCount” is assigned to groups of mail items. If the available high-capacity dispensers are not sufficient for all groups, then further groups are split into low-capacity dispensers (step 318).
  • WO 2005/051556 A2 For example, a method and apparatus are described for accurately sorting mail items in two sorting runs in sequence. A sorting plan is used for each sorting run.
  • the sorting system of US 7,080,739 B2 has two superimposed rows of sorting end points, wherein the rows are offset at an angle to each other.
  • the invention has for its object to provide a method with the features of the preamble of claim 1 and an apparatus having the features of the preamble of claim 11, which reduce the risk that in the first sorting an object can not be discharged into an associated output device, because this output device is full without having to use special overflow trays that are not used for sorting.
  • a sorting system sorts objects according to at least one predetermined sorting attribute. It is possible to sort by several sorting attributes.
  • the sorting system has a plurality of dispensing devices into which the sorting system is able to discharge several items each. These output devices are divided into a first output group and at least a second output group. It is possible that there are more than two output groups. Each output device of the sorting system belongs to exactly one output group.
  • the articles pass through the sorting plant in a first sorting pass and at least one subsequent further sorting pass.
  • a first computer-available sorting plan is used, in each further sorting run in each case a further computer-available sorting plan.
  • Each computer-available sorting plan assigns at least one output device to at least each occurring sorting attribute value. It is possible for a sorting plan to assign at least one output device to each possible sort attribute value.
  • the sorting system In the first sorting pass, the sorting system has the choice between several output devices for some items, because the first sorting plan assigns a plurality of output devices to the sorting attribute value of the item. In the first sorting pass, the sorting system always discharges an object into an output device of the first output group assigned to the first sorting plan if there is still sufficient space in this output device of the first output group. This means that before sorting out, the sorting system has determined that the current fill level in this output device will also be below a fill level barrier specified for this output device even after the article has been removed.
  • each item that the sorting system has discharged into an output device (AE1,..., AE4,...) Is again supplied to the sorting system.
  • This re-supplied object passes through the sorting system in the at least one further sorting run. It is possible that an object is fed three times or more frequently the sorting system.
  • Each sorting plan each includes multiple sets of occurring sort attribute values.
  • Each sort attribute value set each includes at least one sort attribute value.
  • the sorter allocates the same output device (s) to all sort attribute values of a sort attribute value set.
  • the sort attribute value sets may differ from sort plan to sort plan.
  • Each further sorting plan assigns at least one output device of the first output group to each occurring sort attribute value of this sort attribute value set.
  • This further sorting plan is used in a certain further sorting run. It is possible that the further sorting plan associates two different sorting attribute values of this sorting attribute value set with different output means of the first output group. The further sorting plan does not assign to any of the occurring sort attribute values of this sort attribute value set an output device of the second output group.
  • the output devices of the first output group are primarily used in the first sorting pass.
  • An object always arrives in an associated output device of the first output group, if this output device is not yet filled to the level limit.
  • This level barrier can equal the maximum capacity be the output device or even lower.
  • the object is ejected to the associated output device of the second output group and not to an overflow bin which is not used for sorting.
  • the invention also eliminates the need to allocate an additional output device to a full bin of the first issue group during the first sort pass, as described in US Pat WO 02/00362 A2 is described ("referred to as overflow cells 402a").
  • the invention saves the need to pre-determine the order in which the articles pass through the sorting system in a further sorting pass. Due to faults or incorrect operation, the actual sequence may deviate from a calculated sequence.
  • the invention makes it possible, but does not require to identify an item in a further sorting after this item has passed through the sorting in the first sorting. This identification would be required if space digits were used in order among items in the further sort run.
  • the invention saves the need to perform during a further sorting quasi quasi real-time calculations, z. B. to determine whether a filled container can be replaced during operation by an empty container or whether the discharge must be interrupted.
  • the measured sort attribute values and the prescribed sorting plans are needed, but not more information, in particular not an order among square digits.
  • the sorting plans can be generated "offline" in advance. It is also possible to generate only the first sorting plan in advance and to generate each further sorting plan after the first sorting run. Also every other sorting plan can be generated before the respective further sorting run, not during a sorting run.
  • the output devices of the first output group can be arranged ergonomically and / or optimized process technology, so that a quick and convenient unloading is possible.
  • the output devices of the first output group can be adapted to the gripping height of a plant operator and / or to a processing height of an automatic handling machine.
  • the invention also offers the following advantage: If a sorting system sorts articles in several sorting runs, it is often necessary to empty the output devices in a specific feed order after a sorting pass and to return the articles to the sorting system in this feed order.
  • the articles from the first output device of the feed order are to be supplied first to the sorting system, then the articles of the second output device, and so on.
  • a mixing of objects from different output devices during feeding is to be avoided.
  • This feeding sequence is to be followed by a plant operator or an automatic handling machine. If the feed order is not adhered to, sorting can lead to erroneous results.
  • the risk of re-feeding errors is significantly reduced if all dispensers to be emptied are arranged according to this feeding order.
  • the invention it is possible to arrange both the output means of the first output group and the output means of the second output group according to this feed order.
  • the sorting system were to allocate a further output device only during the first sorting run and, if required, assign it to a sorting attribute value, then the feed order can not be taken into account.
  • This embodiment makes it possible to install the output devices of the first output group ergonomically, so that a plant operator or an automatic handling machine can easily remove the objects from the output devices of the first output group.
  • all output devices of the first output group are in a plane that is within a good reach for an adult human.
  • the further sorting run only one output device of the privileged output group is available for at least one occurring sorting attribute value of a sorting attribute value set.
  • the output devices of the second output group can be used in the further sorting run for objects with different sorting attribute values or also for further articles to be sorted.
  • This embodiment makes it possible to make maximum use of the output devices of the first output group in the further sorting run, without having to keep available output devices of the second output group as a reserve. In particular, no overflow compartments are needed.
  • the further sorting plan can preferably only be generated after the first sorting run, for which purpose in the first sorting pass it is counted how many articles have which sorting attribute value. These counting results are used to generate the further sorting plan such that the output devices of the first output group be used to the maximum. For this purpose, for example, a method can be used which in EP 0948416 B1 is described.
  • the invention does not require the information prior to the first sorting pass, because the output devices of the second output group are available as a reserve in the first sorting pass. However, the output devices of the second output group are filled only when necessary, namely when the respectively assigned output device of the first output group is filled.
  • a sorting method with multiple sort runs is applied when there are more possible or more actually occurring sort attribute values than the sort facility has output facilities.
  • the articles are returned to the sorting installation after the first sorting pass in accordance with a predetermined value sequence.
  • This value order determines an order among the sort attribute value sets of the first sort plan.
  • the value order results in a feed order among the output devices.
  • the invention it is possible to generate the first sorting plan such that the generated feed order coincides with an order in which the output devices are arranged in the sorting system to use the first output group as a privileged output group and yet to avoid having to dump an item into an overflow compartment.
  • a set of output means of the second output group is used only in the first sorting pass, but in no further sorting pass.
  • This embodiment can be used in particular when all objects to be sorted find their place in the output devices of the first output group, but only with a good distribution of the objects on these output devices.
  • This division for the purpose of sorting can only be established after the first sorting run, if it is known how many articles each have which sorting attribute value. This is made possible by the fact that each further sorting plan is generated only after the first sorting run and the information is used for this generation as to how many objects each have which sorting attribute value.
  • This embodiment has the advantage that a little ergonomically arranged amount of output devices of the second output group does not need to be emptied after each further sorting run.
  • the output devices of this set can be used for other sorting tasks, which are performed in parallel with the further sorting run.
  • the first sorting plan is generated before the first sorting pass and remains constant throughout the first sorting pass. This ensures that the feed order is the same as the order in which the output devices used are arranged in the sorting system. It is avoided that an additional output device must be allocated during the first sorting pass. Namely, this allocation usually causes the feed order to deviate from the order of order, which may lead to errors and longer processing times.
  • the first sorting cycle it is counted how many articles each have which sorting attribute value. These count results are used to generate each additional sorting plan.
  • This refinement makes it possible to use the privileged output devices of the first output group primarily or even exclusively in each further sorting run.
  • the invention is used to sort a certain amount of flat mail (standard letters, large letters, postcards, catalogs, ).
  • Each mail item is provided with details of a destination address to which this mail item is to be transported, or is provided with such destination address information in the course of the sorting.
  • the mail item is to be transported to this destination address - or forwarded to a predefined forwarding address.
  • the mailpieces are therefore flat objects which can be stacked.
  • Each mail item extends in an object plane and has a front side and a back side.
  • the mail items of the quantities are to be sorted to at least one predetermined delivery sequence ("delivery sequence") of a delivery agent ("carrier").
  • delivery sequence a delivery sequence of a delivery agent
  • carrier a delivery agent
  • Fig. 1 schematically shows the sorting system of the embodiment from above.
  • Fig. 2 schematically shows the two rows R1, R2 of output devices of the sorting of Fig. 1 from the front.
  • the output devices AE1, ..., AE4, ... are arranged in the embodiment in two superimposed planes.
  • the output devices AE4, AE5,... Of the first, lower level form the first output group and are arranged in a first row R1.
  • the output devices AE1, AE2,... Of the second, upper level are arranged in a second row R2.
  • the first row R1 acts as the privileged first edition group and is mounted in an ergonomic handle height of about 1 m to 1.5 m above the ground.
  • the second row R2 acts as the second edition group.
  • the first row R1 has five output devices AE4,..., AE8, and the second row R2 has three output devices AE1, AE2, AE3.
  • the two rows R1, R2 are arranged vertically or obliquely one above the other. It is possible that the first row R1 protrudes in comparison to the second row R2 in order to be more accessible.
  • the first output group may also consist of two rows of dispensers accessible from two different sides, or a carousel with dispensers. The same applies to the second edition group.
  • Each dispenser AE1, ..., AE4, ... has a bottom and preferably side walls and is adapted to receive a stack of upright mailpieces. During sorting, this stack grows in a stacking direction because the sorting system discharges further mailpieces into this output device AE1,..., AE4,.
  • the stack is directly on the ground and rests on at least one side wall of the output device.
  • a container is on the floor in such a way that the container is open on one side. The mailpieces for this dispenser are stacked in the container through the opened sidewall. It is also possible that the mail items are stacked from above into the container.
  • the return transport device has z. B. an endless conveyor belt Fb.
  • This endless conveyor belt Fb is located at the same height as the lower output row R1 and connects the output devices AE4, AE5, ... the first row R1 with the feeder ZE. It is also possible to use at least one vehicle as a return transport device.
  • Each output device AE1, ..., AE4, ... has a maximum recording capacity, namely the dimension in the stacking direction reduced by the dimension of an unusable space and possibly a space reserve.
  • the output means of the first row R1 have a larger capacity than the receiving means of the second row R2.
  • all output devices AE4, AE5,... Of the first row R1 are 450 mm deep - seen in the stacking direction. With an average thickness of a mail piece of 1.5 mm, each output device of the first row R1 is capable of receiving on average 300 mail items.
  • each output device AE1, AE2,... Of the second, upper row R2 is only 350 mm deep and is capable of accommodating approximately 220 mailpieces.
  • Each output device AE1, ..., AE4, ... is equipped in the embodiment with a level sensor.
  • the fill level sensor of the output device measures the current fill level, that is to say the thickness of the stack formed so far in the output device.
  • the level sensor generates a message as soon as the current level has reached or exceeded a specified level limit. For example, a message is generated when the growing stack has reached a rocker arm and turns. Or the stack grows towards a photocell, and the photocell sets a message as soon as the stack breaks the light barrier.
  • the level sensor may also include both the rocker arm and the light barrier.
  • the level sensor sets a free message when the current level is still below the level limit.
  • a central control of the sorting system "knows" that the level sensor is intact.
  • a first fill level barrier and a further fill level barrier are specified.
  • the first level barrier is used in the first sorting pass
  • the further level limit is used in each further sorting pass.
  • An output device is filled in each sorting maximum up to the respective level barrier.
  • the first fill level barrier of an output device AE4, AE5,... Of the first row R1 is smaller than the further fill level barrier. This embodiment facilitates the process of reloading the stack of mail items from the output device onto the return transport device after the first sorting pass. This reloading can be performed faster if the output device AE4, AE5, ... is not filled to the maximum capacity.
  • the additional fill level barrier can be equal to the maximum absorption capacity of the output device.
  • the fill level sensor of an output device AE1,..., AE4,... If the fill level sensor of an output device AE1,..., AE4,... Has measured that the current fill level in this output device has reached the respective fill level limit, the fill level sensor generates a filled message. An associated reporting component notifies a system operator that this output device AE1,..., AE4,... Is now filled.
  • the sorting system additionally comprises a thickness sensor which measures the thickness of each mail item. Thickness is the maximum dimension of the flat mail item perpendicular to its object plane.
  • the thickness sensor is arranged such that the thickness sensor measures the thickness of a mailpiece measures before the controller SE has decided in which output device the mail item is ejected.
  • the level sensor transmits z. B. then a corresponding message to the controller SE, when the current level has almost reached a predetermined limit.
  • the control device SE decides whether there is still room for this mail item in the output device without the current fill level after discharging exceeding the respective fill level barrier.
  • control device SE sums, for each output device AE1,..., AE4,..., The thicknesses of the mail item that were previously discharged into this output device. In this way, the controller SE determines the current level and decides whether there is still room for an additional mail item in this output device.
  • the thickness sensor is saved and a reference thickness, e.g. B. an average thickness of a mail item is measured in advance and specified.
  • a reference thickness e.g. B. an average thickness of a mail item is measured in advance and specified.
  • the control device SE counts how many mail items have been discharged into this output device so far.
  • the current fill level is the product of the reference thickness and the number of pieces of mail.
  • the control device SE has read access to a data memory DS.
  • a computer-available first sorting plan is stored in this data store DS before the first sorting run.
  • a further sorting plan is generated for each further sorting run and stored in the data memory DS.
  • Each sorting plan allocates at least one output device to each actually occurring or even every possible sorting attribute value, in this case to each possible destination address. Because the sorting system has substantially fewer output devices aE1, ..., AE4,... Than there are destination addresses on the mailpieces to be sorted the sorting plan of each output device assigns a set of destination addresses.
  • the first sorting plan specifies five sorting attribute value sets. Each sort attribute value set consists of several destination addresses.
  • the two output devices which are assigned to the same destination address group, form a logical sorting end point for this destination address group.
  • the two output devices of a logical sorting end point are preferably arranged one above the other in the two rows R1, R2. This allows an operator to easily find and empty all dispensers associated with the same sort attribute value set.
  • the first sorting plan assigns only one output device AE7, AE8 of the first row R1 to two further sort attribute value sets, but no output device of the second row R2.
  • the first sorting plan is generated in advance.
  • each output device AE1,..., AE4,... Has a maximum recording capacity.
  • the sum of these maximum take-up capacities of the output devices used in the sorting run provides the total take-up capacity of the sorting system in the respective sorting pass.
  • the amount of mail requires only a level of the sorting system, which is a certain proportion of the total capacity, z. B. about 70% to a maximum of 80%.
  • a reserve is provided, because before the first sorting is not known how many mail items have which destination addresses.
  • the first level barrier is preferably smaller than the maximum capacity of a receiving device.
  • a computer-accessible image of the mailpiece is generated and evaluated. This image shows the respective destination address of the mailpiece.
  • an OCR unit first evaluates the image and attempts to automatically decipher the destination address shown in the image. If this is not possible for the OCR unit, the image is transmitted to a video coding station, and an editor at least partially inputs the destination address. In one embodiment, an encoding of the destination address is applied to the mailpiece. In each subsequent sort pass, this destination address encoding is deciphered to determine the destination address.
  • the sorting system determines the current fill level of an output device which assigns the sorting plan to the respectively determined destination address. This current level results from the thickness of the stack of mail items that have been discharged into this output device so far.
  • the sorting system evaluates the first sorting plan. For a mail item to be rejected, the control unit SE determines its determined destination address and that output device that assigns the first sorting plan to this destination address.
  • the control device SE determines an assigned output device AE4, AE5,... Of the first row R1. In the exemplary embodiment, there is only one such output device AE-x in the row R1.
  • the control device SE determined as described above approximately the current level, which has the associated output device AE-x before the removal. In addition, in one embodiment, the control device SE determines the thickness of the mail item currently to be rejected.
  • the control device SE decides whether the current fill level of the output device AE-x will still lie below the first fill level barrier even after the mail item has been removed from AE-x.
  • control device SE selects the output device AE-x and controls the ejection device SG such that the ejection device SG stores the mailpiece in FIG Eject AE-x.
  • the control device SE determines an output device AE1, AE2,... Of the second row R2, which assigns the first sorting plan to the destination address of the mailpiece.
  • the output device AE-y there is only one such output device AE-y in R2.
  • the outward transfer device SG discharges the mail item into AE-y, otherwise into an overflow compartment.
  • the output devices AE1,..., AE4,... are emptied in accordance with a predetermined feed sequence.
  • the output devices, which together form a logical sorting end, are each emptied one after the other.
  • the mail items from the output devices are again supplied to the feeding device ZE according to the feeding order.
  • the control device SE counts, for each target address that occurs, how many mailpieces to be sorted are to be transported to this destination address. In one embodiment, the control device sums the respective thicknesses of the mailpieces to the same destination address. In another embodiment, a standard reference thickness is approximately used as a matching thickness of each mail item.
  • the control device SE - or a special sorting plan generator - After the first sorting run, the control device SE - or a special sorting plan generator - generates a further sorting plan for each further sorting run. Because the same mail items are sorted in each further sorting run as in the first sorting pass, it is known after the first sorting pass how many mailpieces are to be transported to which destination address. It is also known how thick these mailings are. This information is used to generate each additional sorting plan. This information is available after the first sorting pass.
  • a method for generating a further sorting plan after the first sorting run is z.
  • EP 0948416 B1 described.
  • An address sequence is specified among the possible destination addresses - or an address sequence for each subset of destination addresses.
  • the mailpieces should be sorted according to these address orders.
  • the sorting plan for the last sorting run is generated such that these address sequences are adhered to and each output device AE4, AE5,... Of the first row R1 is filled up to the further fill level barrier. If necessary, various possible assignments of these output devices are tested.

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EP11158938A 2010-03-19 2011-03-19 Procédé de tri et dispositif de tri doté de dispositifs de sortie pouvant être vidés de manière ergonomique Withdrawn EP2366464A1 (fr)

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DE102010012069A DE102010012069A1 (de) 2010-03-19 2010-03-19 Sortierverfahren und Sortiervorrichtung für ergonomisches Sortieren in zwei Sortierläufen

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DE10303979B3 (de) 2003-01-31 2004-07-08 Siemens Ag Schmales Stapelfach für flache Sendungen
WO2005051556A2 (fr) 2003-11-19 2005-06-09 Northrop Grumman Corporation Systeme et procede de sequençage de courrier dans un ordre de point de distribution
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