JPH09173987A - Mail processing method and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to efficiently sort postal items by delivery areas and to rearrange sequence of delivery by forming allocations of sorting lots according to the constitution of the postal items to be sorted and sorting machines. SOLUTION: The sorting conditions of the postal items are inputted to an input device 121 and the allocations of the sorting lots 205 of the postal items are formed in accordance therewith. The postal items are inputted to the sorting machine 200 and the addresses of the postal items are recognized in an address recognizing section 202. The allocation of the first time of the sorting lot 205 formed according thereto is referenced and the postal items are sorted to the sorting lot 205. The sorted postal items are inputted to the sorting machine 200 in order of the sorting lots 205. The addresses of the inputted postal items are again recognized and the postal items are sorted by referencing the allocation of the sorting lots corresponding to the place of the number of the sorting times formed according to these addresses. The processing from the input of the entire postal items to the sorting is repeated up to the number of the sorting times formed. As a result, the postal items are efficiently sorted by the delivery areas and are rearranged in the sequence of the delivery.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mail processing method and system in which a mail processing system using a mail sorting machine sorts mails according to delivery destinations and rearranges them according to a delivery order.

2. Description of the Related Art Processing of postal items in a post office is roughly divided into dispatching work and delivery work. In the dispatch work, the mail received by the station is classified by the destination area (hereinafter referred to as the dispatch category). Also, in the delivery business, the postal items for delivery are classified according to the area of responsibility of the delivery person (hereinafter,
After that, each delivery member rearranges the mail items (hereinafter referred to as route assembly) according to the order of delivery within the area in charge and delivers them. In this delivery business, the direction assembly is
Currently, it is done manually, and occupies a large part of the work time of the delivery staff. In recent years, in order to improve postal services, the need for shorter work hours and nighttime work has increased, and delivery work has been required to improve the efficiency of postal processing, especially consistent mechanization from route assembly to automation, as well as automation. . At present, the Ministry of Posts and Telecommunications is proceeding with an information mechanization plan for postal processing that introduces a new postal code system in contrast to conventional manual work. Specifically, the address described in the mail is recognized, and the corresponding address code is printed on the mail. At the time of delivery classification and route assembly, the sorting machine reads the address code printed on the postal matter and automatically sorts it.

There are several methods for rearranging data in an electronic computer. Among them, as a method capable of handling mechanical operations such as sorting mails in a delivery order by a sorting machine. , There is a radix sort. A simple example of radix sorting will be described with reference to FIG. Now, assume that the articles 301 having a two-digit order are rearranged in order. First, the articles are sorted by the first digit from the bottom of the order.
The division result of the first division is shown at 302. Each of the division ports 304 to 307 has the same first digit from the bottom. Next, the articles in the sorting ports 304 to 307 are taken out, and the articles in the sorting port 304 are sorted again in ascending order of the second digit from the bottom. The second division result is 30
3 is shown. Items having the same second digit from the bottom are sorted into the sorting ports 304 to 307, and articles are arranged in ascending order of the first digit from the bottom. If this order is 3 digits, 3
It can be changed in order by dividing into times. When rearranging postal items, the number of divisions is smaller than at the delivery point, so it is not possible to rearrange the items in one division. ,
It is necessary to sort the mail items by inputting them into the sorting machine. However, using the idea of radix sorting, in order to realize the rearrangement of mails with an actual sorting machine, since the mails do not have a 2-digit sequence number, refer to the information on the delivery order. , It needs to be internally numbered on the calculator. Further, the sorting machine has a limited number of sorting ports, and it is necessary to assign an internal number so as to correspond to the sorting port and perform sorting while referring to this internal number. Further, from the viewpoint of efficiency, it is necessary to prevent the postal matter from exceeding the capacity of the sorting port as much as possible. Therefore, an object of the present invention is to create an allocation of sorting ports in consideration of the configuration of a sorting machine, sort mail items according to the created assignment, and sort them in a delivery order.
It is to provide a mail processing method and system.

The above-mentioned object is to provide at least one sorting machine for sorting mail, configuration information of the sorting machine, and delivery information consisting of correspondence between the delivery destination and delivery order of the mail. Using a computer that has a storage device stored in advance and controls the sorting machine, inputs sorting conditions for mails, creates sorting port assignments for at least two sortings of mails, and sorts mails Input the mail to, recognize the address of the entered mail, refer to the allocation of the first division, classify the mail to the allocation division, and perform the processing from input of mail to classification for all mail Repeatedly input the sorted mail into the sorting machine in the order of the sorting mouth, recognize the destination,
Refer to the assignment of the sorting port corresponding to the number of sortings, sort the mail items to the sorting port of the assignment, repeat the process from the input of the mail item to the classification, and the process from the input of all the mail items to the classification. , Repeat until the number of created categories is reached. In addition, the allocation of the classification mouth is made by extracting the records to be classified according to the classification condition input from the delivery information, sorting by the delivery order, re-ordering, and maintaining the order, at least a 2-digit delivery order. The number corresponding to each digit of the numbered delivery order is assigned as a division port of the number of times corresponding to the number of digits counted from the bottom. Furthermore, if there is a sorting port that exceeds the capacity of the sorting port in the second and subsequent sorting with the sorting machine of the mail, the mail item is sorted into at least two sorting ports so as not to exceed the capacity of the sorting port. Preferably. Further, when the postal items can be sorted so as to be arranged in the delivery order without exceeding the capacity of the sorting port, it is preferable to sort the postal items sorted into at least two sorting ports into the same sorting port. According to the present invention, since the allocation of sorting ports is created according to the mail items to be sorted and the configuration of the sorting machine, it is possible to efficiently sort the mail items into delivery areas and rearrange them in the delivery order.

[1. Editing division assignment

<Step 101> Selective Input of Route Assembly Mode A route assembly mode is selected and input using the input device 212 as a segment mode for editing the segment port assignment. FIG.
Is an example of an input screen of the classification mode to be edited. In the sorting mode selection area 401 on the screen, there are a sorting sorting mode for posting the mail to another post office, a delivery sorting mode for sorting by delivery area, and a route assembling mode. <Step 102> Input of classification conditions Corresponding to the route assembly mode selected in Step 101,
The sorting port allocation condition is input from the input device 212. FIG. 5 shows an example of a screen for inputting the conditions for allocating divisions in the route assembling mode. The creation screen is composed of a section mouth allocation information input area 510 and a reference information output area 520 for creating an allocation. Classification mouth allocation information input area 51
0 is a classification target input field 511, a classification number input field 512,
The section number input field 513 is provided. In the classification target 511, which delivery district is classified is selected and input in a menu format or the like. In the division number input field 512, the number of divisions in which the route assembly is executed is input. In the division number 513, the number of divisions for each division is entered. The reference information output area 520 includes the number of delivery areas 521, the number of delivery points 522 within the delivery area, and the average number of delivery points 523 per area. The delivery area corresponds to the delivery person on a one-to-one basis and corresponds to the area in which the delivery person is in charge. The reference information output area 520 is stored in advance in the storage device 2 as information regarding the delivery area and the delivery destination in charge of the post office.
It is displayed based on the delivery information 600 stored in 14. FIG. 6 shows an example of a file of delivery information 600. The delivery information 600 includes a delivery area field 601, a delivery order field 602, an address field 603, and an address code field 604. The delivery information 600 contains information about the delivery area of the post office. The reference information of division allocation is information used as reference when inputting the division target and the number of divisions. <Step 103> Checking classification conditions Under the classification conditions input in step 102, it is checked whether the classification is physically possible due to the configuration of the sorting machine. Therefore, the delivery information 60 stored in the storage device 213 in advance.
From 0 and the sorting machine information 700, the number of sorting units and the number of delivery points are referred to and compared. FIG. 7 shows a file example of the sorting machine information 700.
Shown in The sorting machine information 700 includes sorting machine ID field 7
01, a division number field 702 and a division capacity field 703. Specifically, the number of divisions 513 must be equal to or less than the number of divisions 702 physically provided in the sorting machine. In addition, the product of the number of divisions for the first time and the number of divisions for the second time must be a number equal to or larger than the total number of delivery points in the delivery area specified by the division target 511. The total number of delivery points is the number of records in which the delivery section field 601 of the delivery information 600 matches the delivery section designated by the classification target 511. When the input range of the division target 511 and the division number 513 exceeds the above constraint, a message notifying that is output, and the process returns to step 102. <Step 104> Allocation Creation According to the classification target 511 and the number of classifications 513 of the conditions input in step 102, allocation of classification mouths is created from the delivery information 600 stored in the storage device 206. FIG.
It is a process flow diagram of allocation creation. The detailed processing flow of step 104 will be described with reference to FIG. <Step 801> From the delivery information 600, the classification target 51
The record having the delivery area field 601 corresponding to 1 is extracted. <Step 802> Next, the records are sorted in the order of the numbers in the delivery order field 602, and the delivery order in the extracted records is sequentially changed from 1. <Step 803> Next, the two-digit order <m><n> is reassigned while maintaining the order of the delivery order. A specific calculation example of m and n is shown below. Remainder obtained by dividing n = P by “the number of divisions for the first time” m = (P−n) / n where m and n are respectively the number of divisions for the second time and the number of times for the first time input in step 102. It's a small number. For example, in the example of the record 903 of FIG. 9, the delivery order is 1300, but when the number of divisions for the first time is 100 and the number of divisions for the second time is 150, 1300 = <13><0>.
Becomes <Step 804><m><n obtained in Step 803
Based on the>, the division mouth allocation is created. The m corresponding to each address is the second division number and the n is the first division number. FIG. 9 shows an example of the allocation file 900 storing the allocation result. Allocation file 90
0 is a delivery target field 601 and delivery order field 60, which are also extracted from the delivery information 600 as a classification target.
2. An address code field 603, a second division port field 901, and a first division port field 902. In the second division field 901, m is
In the first division field 902, n is entered. Each number corresponds to each of the sorting ports 205 of the sorting machine 200. For example, in the example of the record 903 in FIG. 9, the division number of the second division is “13” and the division number of the first division is “0”. In steps 801 to 804, for all the addresses to be classified,
Although the divisions are allotted, in reality, not all mails are delivered to all addresses every day. That is, as a result, the sorting port is assigned to an address without delivery mail, and the sorting port cannot be fully utilized. Therefore,
In step 801, if the address code of the target postal item is stored in the storage device 213, for example, if the postal item to be sorted is put on the sorting machine once in advance by a delivery sorting process, etc., It is possible to extract not only all records having the delivery area field 601 corresponding to the target 511 but only the address codes to be classified. As a result, the capacity and number of sorting ports can be utilized to the maximum, and sorting port assignments can be created. The time for classification can be reduced. [2. Classification Execution Based on Classification Port Allocation] <Step 105> Input of Classification Mode The route assembly mode is input to the computer 211 using the input device 212 as the classification mode of the classification machine 200. In the case of the route assembling mode, the number of divisions is further input. FIG. 10 is an example of an input screen in the classification mode. Input that this is the first division of route assembly.
Here, the number of divisions may be input internally by the computer, and the number of divisions may be output in advance. <Step 106> Input of Mail Items Mail items to be sorted are input to the sorting machine 200 from the input port 201. When inputting mail, it is desirable to have a feeding function that automatically inserts the set mail. <Step 107> Recognition The address recognition unit 20 recognizes the address code of the input postal matter 1100.
Recognize in 2. FIG. 11 shows an image of the postal matter 1100. The address code 1101 is a unique code corresponding to the address 1102, and the address 1102 of the mail item is recognized in advance and the corresponding address code is printed on the mail item at the preparatory stage of the underwriting office and the delivery business. . Here, the unrecognized mail item is sorted into a reject sorting port in step 109. <Step 108> Reference to the division number In accordance with the recognized address code 1101, the allocation file 900 refers to the division number from the first allocation 902 corresponding to the address code to the division number. If the address code 1101 corresponds to the assignment file 90
If it is not in the address code field 604 of 0, in step 109, it is classified into a rejection port. <Step 109> Sorting The mail is conveyed through the conveying path 203, and the sorting control valve 2
By controlling 04, the mail piece 1100 is sorted into the sorting port 205 corresponding to the sorting port number of the referred allocation. If a piece of mail that exceeds the capacity of the sorting mouth is sorted for a certain sorting port, the excess amount is stored in the sorting port for overflow, and all the mail items are sorted and sorted. After removing from the mouth, divide again and combine with the previous one. <Step 110> Repeat for all mails Step 106 for all mail items to be sorted in order
To step 109 are repeated. <Step 111> Input of Sort Mode The route assembly mode is input to the computer 211 using the input device 212 as the sort mode of the sorter 200. FIG.
In the same input screen example as 0, it is input that it is the second division of route assembly. Also, as in step 105, the input of the number of divisions is internally counted by the computer,
It is also possible to output the number of times in advance. <Step 112> Taking out and recharging The sorted mail items 1100 are taken out from the sorting port, and the sorting machine 200 is sorted from the mail items in ascending or descending order of the sorting port number.
To enter. <Step 113> Address Recognition of Mail Item As in step 108, the address recognition unit 202 recognizes the input address code of the mail item 1100. <Step 114> Refer to the division number according to the recognized address code 1101, and this time, since it is the second division, refer to the division number from the allocation file 900 corresponding to the address code to the second division 901. And classify. <Step 115> Sorting Similar to step 110, the postal matter 1100 is sorted into the sorting port 205 corresponding to the assigned sorting port number. At the end of the second sorting, the mail items are sorted according to the two-digit delivery order. For postal items that could not be filled when the capacity of the sorting port was exceeded, store them in the sorting port for overflow, sort all mail items, take them out of the sorting port, and then sort again It should be combined with the divided ones. However, in that case, it is necessary to pay attention to the order of delivery. <Step 116> Repeat for all mail items Step 112 for all mail objects to be sorted in order
To step 115 are repeated. <Step 117> Repeat for the number of divisions With respect to the set number of divisions, the processing from step 111 to step 116 is repeated until the division is completed.
Since this example is an example of two-time division, the process ends. When all the sorting is completed, the postal items can be rearranged in the delivery order by collecting the postal items in the order of the sorting port numbers and collecting the postal items. As described above, according to the present embodiment, since the sorting port assignments are created according to the configuration of the sorting target mail items and sorting machines, it is possible to efficiently sort the mail items according to delivery areas and rearrange them in the delivery order. it can. In the above-mentioned embodiment, the method of rearranging the routes in two divisions has been described, but it is also possible to divide into three or four according to the radix sort method. However, in the case of three times, it is necessary to reassign the delivery order to three digits, because the allocation of the division mouth is necessary for three times. If the number of divisions is increased, the number of divisions will be small, but on the other hand the processing time will increase,
If there is a sufficient sorting port for the delivery point, the number of sortings should be as short as possible. A person skilled in the art can easily infer the detailed processing flow from the method of rearranging the route in two sections described in the embodiment.
Further, as one of the methods of making the break of the delivery area visible after the sorting, there is a method of mixing the simulated mail items before the sorting. In the delivery information 600, the address for the simulated mail is put in the break of the delivery area, and the corresponding address code is printed on the simulated mail. It is desirable that the simulated postal items have a color that stands out when the sorting is completed. By mixing the mock mail and performing the above processing flow,
After the sorting process, the postal items are rearranged in the delivery order with the simulated postal items in the positions of the cuts. As a result, the breaks in the delivery area can be seen at a glance, and it becomes easier to separate the mail items for each delivery member after the sorting. Next, a second embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 12 is a processing flowchart of the mail processing method according to the second embodiment of the present invention. FIG. 12 is almost the same as the processing flow of FIG. The difference is that step 1201 is inserted after step 110. Since the steps before and after are the same as those in FIG. 1, the description thereof will be omitted. <Step 1201> Change of Sorting Port Allocation At the time of the first sorting, by checking the sorted mail items, the mail entering the same sorting port number from the sorting port assignment file 900 in the second sorting port field 901. You can count things. Therefore, if there is a partition that has not been allocated, and there is a partition that exceeds the capacity of the partition, the allocation of the second partition is divided into multiple parts so that the capacity of the corresponding partition number is not exceeded. Then, by renumbering, the overflowed mail can be reduced. A simple example will be described with reference to FIG. 1310
Is the expected second sorting result when the mail piece is checked in the first sorting. It is expected that the mail pieces 1305 and 1306 at the sorting port 1302 will overflow. In this case, overflow 130
For the postal items 5, 1306, the allocation of the second sorting port is changed to the neighboring sorting port 1303, and
The mail items assigned to the sorting port 1303 are assigned to the next sorting port. 1320 is the classification result after the allocation is changed. The postal items 1305 and 1306 that should have overflowed are assigned to the sorting port 1303. On the contrary, by checking the mail items at the time of the first sorting, the allocation is changed so that the mail items that were supposed to be sorted into at least two sorting ports are sorted into the same sorting port. As a result, the number of division ports used can be reduced. This is possible because, in the expected second sorting result, the first digit of the order of delivery of all the mail items entering the latter sorting port in the front and rear sorting ports is the delivery of all the mail items entering the previous sorting port. This is the case where the capacity is larger than the first digit in the order, and the capacity is not exceeded even if only one division port is used. FIG. 14 shows a simple example. 1410 is the second division result expected at the end of the first division.
In this case, since the mail items in the sorting ports 1401 and 1402 satisfy the above condition, the allocation of the mail items assigned to the sorting port 1402 is changed to the sorting port 1401. Further, for the mail items after the sorting port 1403, the allocation is similarly changed to the preceding sorting port. 14
20 is the classification result after the allocation is changed. Category 1
The postal items that were supposed to enter the two sorting ports in 401 are sorted while keeping the delivery order. Next, a third embodiment for realizing the mail processing system according to the present invention on the system configuration diagram shown in FIG. 2 will be described with reference to FIG. Since the outline of the system configuration is the same as that of FIG. 2, its explanation is omitted. The present embodiment will be described in correspondence with the functions described with reference to FIG. First, the input device 212 is used to input sorting conditions for mail pieces. Based on the classification conditions entered
Create 1501 a sorting mouth assignment for at least two sortings of mail. The mail is input to the sorting machine 200. The address recognition unit 202 recognizes the input address of the postal matter. According to the recognized destination, the created first division port allocation 900 is referred to. By controlling the sorting control valve 204 to sort the mail to the sorting port of the referred allocation,
Divide. The process from input of mail items to classification is repeated for all mail items. The sorted mail pieces are input to the sorting machine in the order of sorting mouths. The address recognition unit 202 recognizes the input address of the postal matter. In accordance with the recognized destination, the allocation 900 of the created section number corresponding to the created number of sections is referred to. Sort the mail to the sorting port of the referenced allocation. The processes from input of mail items to classification are repeated for all mail items. The process from inputting all mail items to classification is repeated until the number of created classifications is reached. As described above, according to the present embodiment, similarly to the embodiment described with reference to FIG. 1, it is possible to efficiently sort the mail items according to the delivery areas and rearrange them in the delivery order according to the configuration of the sorting machine. . In the case of the above-mentioned first to third embodiments, the route assembling section is set to 1
Although the case of performing with one machine has been described, it is conceivable that a plurality of sorting machines share the first division and the second division. FIG. 16 shows a system configuration diagram of a plurality of sorting machines. This case can be dealt with by communicating and sharing the delivery information 600 and the sorting port allocation information 900 between computers. This allows multiple sorting machines to work in cooperation,
The processing time can be further shortened.

According to the mail processing method and system of the present invention, it is possible to efficiently utilize the limited performance of the sorting machine to efficiently sort mail items by delivery area and rearrange them in the delivery order.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating a process according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a mail processing system using the present invention.

FIG. 3 is a conceptual diagram of a radix sort method.

FIG. 4 is a view showing an example of an editing screen for allocating divisions.

FIG. 5 is a view showing an example of a screen for inputting sorting port allocation conditions.

FIG. 6 is a view showing an example of a delivery information file.

FIG. 7 is a view showing an example of a file of sorting machine information.

FIG. 8 is a flowchart of creating a sorting port allocation in the mail processing method of FIG.

FIG. 9 is a view showing an example of a file of sorting port allocation information.

FIG. 10 is a view showing an example of a selection screen in a classification mode.

FIG. 11 is a view showing an example of a mail item.

FIG. 12 is a flowchart showing a process of the second embodiment of the present invention.

FIG. 13 is a conceptual diagram of a method of grouping a plurality of divisions by changing allocation of division mouths.

FIG. 14 is a conceptual diagram of a method of dividing one division by changing allocation of division mouths.

FIG. 15 is a configuration diagram of an embodiment of a mail processing system of the present invention.

FIG. 16 is an example of a system configuration to which the present invention is applicable.

[Explanation of symbols]

200 ... Sorting machine, 201 ... Inlet, 202 ... Address recognition unit, 203 ... Conveyance path, 204 ... Sorting control valve, 205 ...
Classification port, 211 ... Calculator, 212 ... Input device, 213
... storage device, 214 ... output device.

Claims (8)

[Claims] 1. A storage device that stores in advance at least one sorting machine for sorting mail, configuration information of the sorting machine, and delivery information including correspondence between a delivery destination and a delivery order of the mail. In a postal processing system that sorts and sorts postal items in a delivery order using a computer that controls the sorter, inputs postal item sorting conditions, and based on the input sorting conditions, at least two postal items. Creating a sorting port assignment for each time segment, inputting the mail into the sorting machine, recognizing the destination of the input mail, and assigning the created first sorting port according to the recognized destination. , The mail is sorted to the sorting port of the referenced allocation, the processing from the input of the mail to the sorting is repeated for all the mail, and the sorted mail is
Input to the sorting machine in the order of the sorting port, recognize the destination of the input mail, refer to the assignment of the sorting port corresponding to the created sorting number according to the recognized address, and the sorting port of the referenced assignment The mail item is sorted, the processing from the input to the classification of the mail item is repeated for all the mail items, and the process from the input to the classification of all the mail items is repeated until the created number of classifications is reached, A mail processing method characterized by the above. 2. The mail processing method according to claim 1,
The mail processing method, wherein the inputted classification conditions are a classification count, a classification target address, and a classification count. 3. The mail processing method according to claim 1,
The division port assignment is created by extracting the records to be divided according to the input division condition from the delivery information, sorting the extracted records in the delivery order, re-ordering, and the re-delivered delivery. The order is numbered in a delivery order of at least two digits while maintaining the order, and the number corresponding to each digit of the numbered delivery order is used as the division number of the number of times corresponding to the number of digits from the bottom. A mail processing method characterized by: 4. The mail processing method according to claim 1, wherein
A mail processing method, wherein the delivery information has a record for simulated mail at a knot of a delivery area, and the divided mail matter includes the simulated mail. 5. A sorting machine for sorting a mail item, a storage device in which configuration information of the sorting machine, and delivery information including correspondence between a delivery destination and a delivery order of the mail item are stored in advance. In a postal processing system that sorts and sorts postal items in a delivery order by using a computer that controls the postal items, enter postal item sorting conditions, and sort the postal items at least twice based on the entered sorting conditions. To the sorting machine, input the mail into the sorting machine, recognize the destination of the input mail, and according to the recognized destination,
Referring to the created first allocation of the sorting port, the mail item is sorted to the sorting port of the referenced allocation, the processing from the input of the mail item to the sorting is repeated for all the mail items, and the first time From the sorting result, the allocation of the created sorting ports after the second time is changed, the sorted mail items are re-input to the sorting machine in the order of sorting ports, and the destinations of the input mail items are recognized, According to the recognized address, the allocation of the sorting port corresponding to the changed number of classifications is referred to, the mail is sorted into the sorting port of the referenced allocation, and the processing from the input of the mail to the sorting is performed for all mails. A mail processing method, characterized in that the processes from the input of all the mail items to the classification are repeated until the number of created classifications is reached. 6. The mail processing method according to claim 5,
The change of the allocation of the classification mouth from the result of the first classification is
A mail processing method, wherein the second and subsequent sorting results are calculated from the first sorting result, and the sorting port allocation is changed so that the sorting port that exceeds the capacity does not exceed the sorting port capacity. 7. The mail processing method according to claim 5,
The change of the allocation of the classification mouth from the result of the first classification is
From the first sorting result, the second and subsequent sorting results were calculated, and the sorting ports before and after a certain sorting corresponded to the number of sortings immediately before the delivery order of all postal items entering the latter sorting port. If the number of digits is larger than the corresponding number in the delivery order of all mail items entering the previous sorting port, and if one sorting port does not exceed the capacity, assign it to the same sorting port A mail processing method characterized by changing. 8. A storage device that stores in advance at least one sorting machine for sorting mail, configuration information of the sorting machine, and delivery information including correspondence between a delivery destination and a delivery order of the mail. In a postal processing system that sorts and sorts postal items in a delivery order using a computer that controls the sorter, means for inputting postal item sorting conditions, and postal items based on the input sorting conditions. A means for creating a sorting port allocation for at least two classifications, a means for inputting the mail to the sorting machine, a means for recognizing the destination of the input mail, and the creation according to the recognized destination. Means for referring to the allocation of the first sorting port, means for sorting the mail item to the sorting port of the referenced allocation, and processing from the input to the sorting of the mail item for all mail items Means for returning the mail, means for inputting the sorted mail pieces into the sorting machine in the order of sorting mouths, means for recognizing the destination of the input mail pieces, and the number of sorting times created according to the recognized destinations A means for referring to the allocation of the sorting port, a means for sorting the mail item to the sorting port of the referenced allocation, a means for repeating the processing from the input to the sorting of the mail item for all the mail items, and A mail processing system comprising: means for repeating the processing from input of mail items to sorting until the number of sorting times is created.