JP2002126655A - Sorting system and sorting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sorting system which improves the reliability of the results of postal code number reading by collating the read postal code numbers of seven digits with the key words registered in a data base in order to complement the recognition results of the postal code numbers of the seven digits and to sort the postal matters by using the sorting system with high reliability. SOLUTION: High-reliability sorting is carried out by the sorting system having a first judging means for judging whether or not the address-for-delivery codes recognized by a recognizing means correspond to the address-for-delivery codes registered in a specific address-for-delivery registering means, a second judging means for judging whether or not the address-for-delivery information recognized by the recognizing means has the key words registered in the specific address-for-delivery registering means in accordance with the judgment made by the first judging means that the codes described above correspond to the specific address-for-delivery codes, and a transporting means for transporting the deliveries to prescribed sorting boxes according to the results of the judgment of the second judging means, and the sorting method for sorting by using this sorting system is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a postal code or a postal code written on a mailing sheet (delivery) such as a postcard or a sealed letter or a package (delivery) such as a parcel. The present invention relates to a sorting apparatus and a sorting method for recognizing an address and sorting a delivery to a predetermined sorting destination based on the recognition result.

[0002]

2. Description of the Related Art In a conventional sorting apparatus, recognition of an address written on a postal matter as a delivery, for example, is performed as follows.

[0003] That is, since February 1998, postal items have been assigned a seven-digit postal code (delivery destination code).
The seven-digit postal code is set corresponding to each town name unit of the address (delivery destination information). For example, the zip code "21
"2-8501" corresponds to "Yanagimachi, Sachi Ward, Kawasaki City, Kanagawa Prefecture".

[0004] For this reason, if a seven-digit postal code written on a postal matter can be recognized, it is possible to limit the names of towns to be recognized in the process of recognizing the address of the postal matter.

[0005]

In the case of the recognition method used in the conventional sorting apparatus as described above, even if a seven-digit zip code can be recognized, there is still a possibility that the zip code is misread. Remaining.

Therefore, conventionally, as a countermeasure against erroneous reading of the postal code, the entire address is read, and if all the addresses are correctly read, the recognition of the seven-digit postal code is complemented using the address recognition result. Was.

However, when performing the above-described recognition complementation, if the seven-digit postal code is misread and all the addresses cannot be correctly recognized, the above-described complementing function does not work at all. was there.

The present invention has been made to solve such a problem. To complement the recognition result of a seven-digit postal code, a keyword extracted from an address corresponding to a seven-digit postal code is provided. Is registered in the database in advance, the address position is detected, the keyword described in the address is detected, and the postal code read result is obtained by comparing the read 7-digit postal code with the keyword in the database. An object of the present invention is to provide a sorting device and a sorting method that improve reliability.

[0009]

In order to solve the above-mentioned problems, the invention according to claim 1 recognizes a delivery destination code and delivery destination information of a delivery, and classifies the delivery based on the recognition result. An image reading means for reading an image of a delivery destination code and delivery destination information of the delivery supplied from the supply means, and a delivery destination code based on the image data read by the image reading means. And a recognizing means for recognizing the delivery destination information, a specific delivery destination code among the delivery destination codes is registered as a specific delivery destination code, and the delivery destination information corresponding to the specific delivery destination code is registered as a keyword. The specified delivery destination registration means and the delivery destination code recognized by the recognition means are
First determining means for determining whether or not the specified delivery destination code is registered in the specific delivery destination registration means; and determining whether the specified delivery destination code is satisfied by the first determining means. A second determining means for determining whether or not the delivery destination information recognized by the recognition means has a keyword registered in the specific destination registering means; and The present invention is to provide a sorting apparatus having a transport means for transporting a delivery to a predetermined sorting box.

[0010] In order to solve the above-mentioned problem, according to the invention described in claim 2, the second judging means is provided with the first judging means.
And determining whether the destination information recognized by the recognizing unit has the keyword registered in the specific destination registering unit, based on the determination that the determining unit corresponds to the specific destination code, 2. The method according to claim 1, wherein when it is determined that the specified delivery destination code is correct, the specific delivery destination code is determined to be correct, and when it is determined that the registered delivery destination code is not included, the specific delivery destination code is determined to be misread. And a sorting device described in (1).

In order to solve the above-mentioned problem, in the invention according to claim 3, the specific delivery destination registering means registers a plurality of keywords for each specific delivery destination code,
The second determining means is configured to register the destination information recognized by the recognizing means in the specific destination registering means based on the determination by the first determining means that the code corresponds to the specific destination code. It is determined whether or not there are any keywords among the keywords corresponding to the specific delivery destination code. If it is determined that the keyword has a predetermined number of the registered keywords, it is determined that the specific delivery destination code is correct. 2. The sorting apparatus according to claim 1, wherein when it is determined that the specified delivery destination code does not have a predetermined number of keywords, the specific delivery destination code is determined to be misread.

In order to solve the above problem, in the invention according to claim 4, the delivery destination code and the specific delivery destination code are zip codes, and the delivery destination information is a delivery address of a delivery. A sorting apparatus according to any one of claims 1 to 3 is provided.

In order to solve the above-mentioned problem, in the invention according to claim 5, the postal code is a seven-digit postal code, and the sorting apparatus according to claim 4 is provided. It is.

According to a sixth aspect of the present invention, there is provided a sorting method for recognizing a delivery destination code and delivery destination information of a delivery and sorting the delivery based on the recognition result. An image reading step of reading an image of a surface on which a delivery destination code or delivery destination information of the delivery is described, a recognition step of recognizing the delivery destination code or delivery destination information from the image data read in the image reading step, A specific delivery destination code is registered as a specific delivery destination code in the delivery destination code, and delivery destination information corresponding to the specific delivery destination code is registered as a keyword. A first determining step of determining whether or not the destination code recognized by the recognition means corresponds to the destination code; and a specific destination code by the first determining step. Based to is determined appropriate,
A second determining step of determining whether the delivery destination information recognized in the recognition step has a keyword registered in the specific destination registering means, and performing the delivery in accordance with a determination result of the second determining step And a transporting step of transporting an article to a predetermined sorting box.

In order to solve the above-mentioned problem, according to the invention described in claim 7, the second judging step includes the step of:
In the determination step, it is determined whether or not the delivery destination information recognized in the recognition step has the keyword registered in the specific delivery destination registration based on the determination that the keyword corresponds to the specific delivery destination code. 7. The classification according to claim 6, wherein when it is determined that the specific delivery destination code is correct, when it is determined that the specific delivery destination code does not have a keyword, it is determined that the specific delivery destination code is misread. Method.

[0016] In order to solve the above-mentioned problem, in the invention according to claim 8, the second judging step includes the step of:
The destination information recognized in the recognizing step based on the determination that the destination code corresponds to the specific destination code in the determining step, a plurality of keywords registered in advance for each specific destination code in the specific destination registering means. Of the registered keywords, and if it is determined that the registered keyword has a predetermined number of keywords, it is determined that the specific delivery destination code is correct, and it is determined that the specific delivery destination code does not have the predetermined number of keywords. 7. The method according to claim 6, wherein in the case, the specific delivery destination code is determined to be misread.

According to a ninth aspect of the present invention, the delivery destination code is a postal code, and the delivery destination information is a delivery address of a delivery. It is intended to provide a sorting method according to claims 6 to 8.

According to a tenth aspect of the present invention, in order to solve the above-mentioned problem, the zip code is a seven-digit zip code. It is.

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings.

First, the configuration of a sorting apparatus according to an embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a view showing an external configuration of a sorting apparatus according to an embodiment of the present invention, FIG. 2 is a view showing a configuration of the sorting apparatus according to an embodiment of the present invention, and FIG. It is a block diagram which shows the structure of the recognition unit of the sorting device of the form of FIG.

The sorting apparatus 1 according to the embodiment of the present invention includes a 7-digit postal code (delivery destination code) written on a postal matter P such as a paper sheet, which is a delivery material, and an address such as a town name. (Delivery destination information) is read, the postal code, the street name, and the like are recognized from the read contents, and the postal matter P is classified based on the recognition result.

The sorting apparatus 1 also has a function of printing a bar code corresponding to the recognition result (postal code, address) on each mail P. Note that the barcode printed here is obtained after the mail P is sorted by the sorting device.
When the mail is sorted in the delivery order at the post office (delivery office) to which the mail was delivered, this is to save the trouble of recognizing the destination by one character unit again. By recognizing, the postal code and the address can be recognized, and the mails are rearranged in the delivery order based on the barcode recognition result of each mail.

The main body 1a of the sorting device 1 includes a plurality of mail items P
Is set in batch units or rejected mail units, and has a supply unit 2 (supply means) for supplying the set mail items P one by one.

The supply unit 2 feeds the transport path 3
The scanner unit 4 (image reading unit) for reading the entire image of the surface on which the postal code and the address of the postal matter P supplied one by one on the (conveying unit) are provided, and the scanner has passed through the scanner unit 4. It has an ID code reading unit 5 for reading a bar code attached to the mail P.

The ID code reading unit 5
And a barcode printing unit 6 for printing a barcode corresponding to the postal code or address written on the postal matter P that has passed through.

The bar code print unit 6
The postal matter P that has passed through is recognized as a postal code, town name, block, etc., or a video coding system (VC
S) Classification based on predetermined classification information corresponding to the postal code, town name, block, etc. input from S), or classification for separating postal matter P for which the postal code, town name, block, etc. have not been recognized or input. It has a unit 7.

Further, there is provided a recognition unit 8 (recognition means) for recognizing a zip code, a town name, a block, and the like from an image read by the scanner unit 4 and a bar code read by the ID code reading unit 5. .

Further, a transport control unit 9 for controlling the transport of the mail P on the transport path 3 and the reading result of the postal code, the town name, the block, etc. of the mail P are displayed, and according to the type of the mail P. Operation panel 10 for selecting a processing mode, and control unit 11 for controlling the operation of each unit of sorting apparatus 1
And a reject data control unit 12 for managing reject data and the like relating to the postal matter P whose postal code, town name, block, etc. could not be recognized by the recognition unit 8.

First, the sorting unit 7 includes a sorting unit 13 using a plurality of gates for sorting recognized mails P.
A and a plurality of sorting box groups 13B for storing sorted mail items P.

Next, as shown in FIG. 3, the recognition unit 8 is first supplied from the photoelectric conversion unit 4a of the scanner unit 4 for converting the entire surface on which the address of the mail P is described into image data. Has an area detection unit 14 that detects each area in which a zip code, a town name, a block, and the like are described based on an image of the postal matter P.

Next, there is provided a line detecting unit 15 which detects and cuts out character lines in which the postal code, town name, block, etc. are described in the area detected by the area detecting unit 14 line by line. .

Also, multi-valued image data such as characters of a character line detected and cut out by the line detecting section 15 is converted into binary image data, and characters and the like are detected and cut out one character at a time. It has a part 16.

Further, there is provided a postal code detecting section 17 for detecting a numeral corresponding to a postal code from characters cut out and detected by the character detecting section 16.

A postal code dictionary 18 (specific delivery destination) in which postal codes corresponding to large users and the names of towns, blocks, addresses corresponding to the postal codes or the kanji, kana characters, numbers, etc. constituting them are registered in advance. Postal code recognition unit 19 (first determination unit) that recognizes and processes the postal code based on the number detected by the postal code detection unit 17 with reference to the registration unit and determines whether the postal item is addressed to a large user. have.

Further, a character recognizing section 21 for recognizing a character or the like extracted and detected by the character detecting section 16 with reference to the character dictionary 20 is provided.

Further, a town name recognizing unit 23 is provided which refers to the town name database 22c in the address dictionary 22 and recognizes the town name by combining the characters recognized by the character recognizing unit 21.

Further, a block character such as a street or an address described after a town name recognized and processed by the town name recognition unit 23 is set to one.
It has a block character detection unit 24 that detects and cuts out in units of characters.

A block character recognizing unit 26 for recognizing the block characters by referring to the block character dictionary 25 based on the block characters detected and cut out by the block character detecting unit 24 is provided.

Further, there is provided a sorting designation table 27 for storing sorting information and the like necessary for sorting the postal matter P in order to make the postal code and address correspond to each sorting box of the sorting box group 13B.

The apartment house name database 22a and the large name database 22 provided in the address dictionary 22 are provided.
With reference to b, there is an apartment / large name recognition unit 28 for recognizing and processing an apartment name and a large name by combining the block characters recognized and processed by the block character recognition unit 26.

The block is recognized by combining the block characters recognized and processed by the block character recognition unit 26, and the postal matter P is recognized based on the recognition result of the zip code, town name, block and the like.
Answer editing unit 29 (second determining means) for determining the destination of
The storage unit 30 stores necessary information such as the recognition result of the above-mentioned postal code, town name, block, and the like.

The apartment house name database 22a provided in the address dictionary 22 has an apartment name /
Stores apartment names etc., large database 22
As shown in FIG. 5, b (large keyword database) stores, for example, kanji, kana characters, numbers, and the like constituting a large user name of a major company or the address where the user is located, as keywords. , The town name database 22c stores the town names of the areas that are classified by the sorting device.

The keywords stored in the large database 22b can be changed as appropriate.

Next, the control unit 11 sends the answer
Then, the transport control unit 9 is driven and controlled based on the determination result, and the mail P on the transport path 3 is moved to one of the sorting boxes in the sorting box group 13B.

The reject data control unit 12
Outputs the reject data according to the recognition result of the mail P and the image data of the mail P to the video coding system.

The town name database 22c in the address dictionary 22 is a database in which town names in the delivery area of the postal matter P managed by the post office to which the sorting apparatus 1 is carried are registered.

Next, the operation of the sorting apparatus according to the embodiment of the present invention will be described.

FIG. 4 is a flowchart showing a mail address recognition process by the recognition unit 8 according to the embodiment of the present invention.

First, in step A1, the supply unit 2
The mail P supplied one by one from the scanner unit 4
From the image of the postal matter P read by
The area area unit 14 and the line detection unit 15 detect an address area in which a zip code, a town name, a block, and the like are described, and a character line in which the zip code, the town name, the block, and the like in the detected address area are described. Detect and cut out line by line.

Next, in step A2, the characters of the character line detected and cut out in step A1 are detected and cut out by the character detection unit 16 in units of one character.

Next, in step A3, the postal code detecting section 17 detects a number corresponding to the postal code from the characters and the like detected and cut out in units of one character in step A2.

Next, in step A4, the postal code recognition section 19 recognizes the postal code by referring to the postal code dictionary 18 based on the numbers detected in step A3.

Next, in step A5, the postal code recognition section 19 continuously determines whether or not the postal code recognized in step A4 belongs to a large user. This determination is made by determining whether or not the postal code corresponds to a postal code of a large user registered in the postal code dictionary 18 in advance.

Hereinafter, a case will be described in which it is determined that the recognized postal code belongs to a large user as a result of the determination in step A5.

First, in step A6, based on the fact that the postal code recognized in step A5 belongs to a large user registered in the postal code dictionary 18, the character The character and the like that have been detected and cut out in step A2 are recognized with reference to FIG.

Next, in step A7, the town name recognizing unit 23 refers to the town name database 22c in the address dictionary 22 based on the postal code recognized in step A4, and combines the characters recognized in step A6 with the town name. Is recognized.

Next, in step A8, block characters such as streets and addresses described after the town name recognized in step A7 are detected and cut out by the block character detection unit 24 in units of one character.

In step A9, block characters are recognized by the block character recognition unit 26 with reference to the block character dictionary 25 based on the block characters detected and cut out in units of one character in step A8.

Next, in step A10, the answer editing unit 29
In step A7, a search is made to determine whether the keywords registered in the large database 22b are included in the town names and block characters recognized in steps A7 and A9, and a predetermined number or more keywords are included. If it is determined that the postal code recognized in step A4 is correct, it is determined that the recognized postal code is incorrect (misread) if the keyword is not included or less than a predetermined number.

If it is determined that the postal code is correctly recognized, then in step A11, the postal matter P is determined on the basis of the recognition result of the postal code, town name, block, and the like.
Edit the answer to determine the destination of the answer.

On the other hand, as post-processing when it is determined in step A10 that the postal code is erroneously read, in step A11, the answer editing unit 29 determines that the postal code is an error postal matter, and in step A12, a classification dedicated to the error postal matter. The box is determined by searching the sorting box designation table 27, and the error mail is conveyed to the determined error sorting box.

Alternatively, in step A10, if it is determined that the postal code is erroneously read, as another example,
In step A11, step A4, step A7
In addition, the recognition result of the postal code, town name, block, etc. recognized in step A9 is preferentially adopted, and the result is edited to determine the destination of the postal matter P as a correct sorting destination, and the process proceeds to the next step A12. You may be able to do it.

Next, in step A12, step A1
A sorting box for sorting mail items P is obtained by searching the sorting specification table 27 based on the result of the answer editing of Step 1.

On the other hand, in step A5, step A
If it is determined that the postal code recognized in step 4 is not that of a large user, the above-described steps A6 to A
After performing the same processing as in step 9 (steps A6 ′ to A9 ′), the process proceeds to step A11, where the zip code, the street name,
Based on the recognition result of the block, etc., the postal matter P in the answer editing unit 29
Edit the answer to determine the destination of the answer.

Thereafter, the process proceeds to step A12, where a sorting box for sorting the mail P is searched from the sorting box group 13B in the sorting designation table 27 based on the result of the answer editing in step A11. Then, the mail is conveyed to a predetermined sorting box via the sorting unit 13A of the sorting unit 7 and sorted.

Here, a description will be given based on a more specific embodiment.

For example, the postal matter is "212-8501" as a seven-digit postal code, and the delivery address of the postal matter is "Yanagicho 70, Sachi-ku, Kawasaki-shi, Kanagawa Pref.
The intellectual property department ABCD "is described, and in the sorting apparatus 1, the postal code" 212-8501 "is registered as a large user in advance as" 70 Yanagicho, Sachi-ku, Kawasaki-shi, Kanagawa ○ Shibayanagi-cho Office " The following is a description of the case.

First, in step A 1, the area area 1
4. The line detection unit 15 detects an address area in which a zip code, a town name, a block, and the like are described, and converts a character line in the detected address area in which a zip code, a town name, a block, and the like are described in units of one line. Detect and cut out.

Next, in step A2, step A
The character of the character line detected and cut out in 1 is detected by the character detection unit 16 in units of one character, that is, “2”,
Detect and cut out such as "1", "2", "god", "na", "river" and the like.

Next, in step A3, step A
From the characters and the like detected and cut out in units of one character in step 2, the postal code detection unit 17 detects a number corresponding to the postal code,
In step A4, the postal code recognition unit 19 refers to the postal code dictionary 18 based on the numbers detected in step A3, and sets the postal code to "2285501"("212-
8501 "is registered in the registration data as described above).

Next, in step A5, step A
It is determined whether the postal code recognized in step 4 is for a large user. In this embodiment, as shown in FIG.
Is registered as assigned to the large user, so that the postal code recognized in step A4 is determined to belong to the large user.

Next, in step A6, the character recognizing section 21 refers to the character dictionary 20 and performs recognition processing on characters detected and cut out in units of one character in step A2.

Next, in step A7, based on the postal code "2128501" recognized in step A4, the town name recognizing section 23 executes the town name database 22 in the address dictionary 22.
Referring to c, the characters recognized in step A6 are combined to perform a town name recognition process.

Next, in step A8, block characters such as streets and addresses described after the name of the town recognized in step A7, in this embodiment, "70" is replaced with "7", "0"
As described above, the block character detection unit 24 detects and cuts out one character at a time.

Next, in step A9, the block character recognition unit 26 based on the block characters detected and cut out in step A8.
The block character is recognized by referring to the block character dictionary 25.

At this time, it is necessary to determine whether “7” and “0” have different meanings, or mean “70”.

In the case of this embodiment, "7" and "0" do not separately exist as a block following the town name "Yanagicho, Kawasaki-shi, Kanagawa" recognized in step A6, that is, "70". In FIG. 6, the fact that there is only the data is stored as hierarchically related data in the order of prefecture, city, ward, town, and block.
It is set to be determined to be “0”.

Next, in step A10, the answer editing unit 29
In the characters such as the town name, the block, and the address recognized in step A7 and step A9,
A search is made to determine whether or not a keyword registered in b, that is, “○ turf”, “○”, “turf”, “yanagi”, “70” or the like as shown in FIG. 5 is included. At this time, since these keywords are registered in association with the postal code “212-8501” corresponding to the address including these keywords, if it is determined that these keywords are included, step Postal code "212"
It is determined that “8501” is correct, and if no keyword is included, it is determined that the recognized postal code is incorrect (misread).

It is assumed that the number of keywords used for the right / wrong judgment can be set arbitrarily, and the number of detected keywords necessary for judging that the postal code read result is correct can be set arbitrarily.

In other words, the number of registered keywords is “○ turf”,
With "O", "Shiba", "Yanagi" and "70", if one of these keywords is detected, it can be set so that the recognized zip code is determined to be correct. Alternatively, it can be set so that when two of “Yanagi” and “70” are detected, the recognized postal code is determined to be correct.

If it is determined that the recognized postal code is correct, in step A11, an answer edit for judging the delivery destination of the postal matter P based on the recognition result of the postal code, town name, block, etc. is performed. This is continuously performed by the answer editing unit 29.

Next, in step A12, step A1
Based on the result of the answer editing in step 1 (determination result of the delivery destination), a sorting box for sorting mail items P is obtained by searching the sorting specification table 27, and is determined via the sorting unit 13A of the sorting unit 7. The mail is conveyed to a predetermined sorting box and sorted.

On the other hand, in step A10, in the answer editing unit 29, the keywords registered in the large database 22b, among the town names and block letters recognized in steps A7 and A9, ie, as shown in FIG. Search for a predetermined number of "* shiba", "*", "shiba", "yanagi", "70", etc., and if no keyword is included, the recognized zip code is misread. Is determined to be.

Here, if it is determined that the reading is erroneous, the answer editing unit 29 determines that it is an error mail, and the sorting box group 13
By searching the sorting box designation table 27 for a sorting box dedicated to error mail provided in B, the error mail is conveyed to the determined sorting box dedicated to error mail.

Alternatively, in step A10,
As another processing example when it is determined that the postal code is erroneously read, in step A11, the postal code, the street name, and the postal code recognized in step A4, step A7, and step A9.
The priority is given to the recognition result of the block, etc., and the answer is edited to determine the destination of the postal matter P as the correct sorting destination,
The process may proceed to the next step A12.

In step A5, step A
If it is determined that the postal code recognized in step 4 is not that of a large user, the above-described steps A6 to A
After performing the processing of No. 9, the process proceeds to step A11, where the answer editing unit 29 performs answer editing for determining the destination of the postal matter P based on the recognition result of the zip code, the town name, the block, and the like.

Then, the process proceeds to step A12,
Based on the result of the answer editing in step A11, the mail P
A sorting box for sorting is searched for in the sorting box group 13B by searching the sorting specification table 27, and the mail is conveyed to a predetermined sorting box via the sorting unit 13A of the sorting unit 7 to be sorted.

As described above, according to the present invention, it is possible to confirm whether or not the read result of the postal code is correct from the keyword search based on the address. It is possible to make a right / wrong judgment on the reading result of the, and it is possible to perform a highly reliable classification.

[0090]

By using the sorting apparatus and the sorting method of the present invention, a highly reliable sorting apparatus and a sorting method can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing an external configuration of a sorting apparatus according to the present invention.

FIG. 2 is a block diagram showing a configuration of a sorting device according to the present invention.

FIG. 3 is a block diagram showing a configuration of a recognition unit of the sorting apparatus according to the present invention.

FIG. 4 is a flowchart showing a procedure of a recognition process performed by a recognition unit of the sorting apparatus according to the present invention.

FIG. 5 is a diagram showing an outline of information stored in a large database of the sorting apparatus according to the present invention.

FIG. 6 is a diagram showing an address structure stored hierarchically in the sorting apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Sorting apparatus 2 ... Supply unit (supply means) 3 ... Conveyance path (conveyance means) 4 ... Scanner unit (image reading means) 8 ... Recognition unit (recognition means) 18 ... Postal code dictionary (specific delivery destination registration means) 19 ... Postal code recognition unit (first judgment means) 29 ... Answer editing unit (second judgment means) P ... Postal matter

Claims (10)

[Claims] A delivery device that reads a delivery destination code and delivery destination information of a delivery product and sorts the delivery product based on the read result; Image reading means for reading a surface on which information is described, recognition means for recognizing a delivery destination code and delivery destination information from image data read by the image reading means, and a specific delivery destination as a specific delivery destination code. A specific delivery destination registration unit that is registered and the delivery destination information corresponding to the specific delivery destination code is registered as a keyword, and a delivery destination code recognized by the recognition unit is registered in the specific delivery destination registration unit. First determining means for determining whether the code corresponds to the specified delivery destination code, and determining that the code corresponds to the specified delivery destination code by the first determining means. A second determining means for determining whether the destination information recognized by the recognizing means has a keyword registered in the specific destination registering means, Transporting means for transporting the delivery to a predetermined sorting box in accordance with a result of the determination. 2. The delivery destination information recognized by the recognition unit based on the determination by the first determination unit that the delivery destination code corresponds to the specific delivery destination code. It is determined whether or not it has a keyword registered in the means, if it is determined that it has a registered keyword, it is determined that the specific delivery destination code is correct, and if it is determined that it does not have a registered keyword. 2. The sorting apparatus according to claim 1, wherein the specific delivery destination code is determined to be misread. 3. The specific delivery destination registration means, wherein a plurality of keywords are registered for each specific delivery destination code.
Determining means that the delivery destination information recognized by the recognition means is registered in the specific delivery destination registration means based on the determination that the first determination means corresponds to the specific delivery destination code. A determination is made as to how many of the keywords corresponding to the code are included. If it is determined that the registered keyword has a predetermined number of keywords, it is determined that the specific delivery destination code is correct, and a predetermined number of keywords are determined. 2. The sorting apparatus according to claim 1, wherein when it is determined that the specific delivery destination code does not have the keyword, the specific delivery destination code is determined to be misread. 4. The method according to claim 1, wherein the delivery destination code and the specific delivery destination code are postal codes, and the delivery destination information is a delivery destination address of a delivery. Sorting device. 5. The sorting apparatus according to claim 4, wherein the postal code is a seven-digit postal code. 6. A method for reading a delivery destination code and delivery destination information of a delivery, and for sorting the delivery based on the read result, the delivery destination code and delivery destination of the delivery supplied from a supply unit. An image reading step of reading an image on which information is written, a recognition step of recognizing a delivery destination code and delivery destination information from the image data read in the image reading step, and a specific delivery destination code serving as a specific delivery destination code. Whether the delivery destination code recognized in the recognition step corresponds to the specific delivery destination code registered in the specific delivery destination registration means in which the delivery destination information corresponding to the specific delivery destination code is registered and registered as a keyword. A first judging step of judging whether or not it is determined that the code corresponds to the specific delivery destination code in the first judging step. A second determining step of determining whether or not the delivery destination information recognized in step (a) has the keyword registered in the specific destination registering means; and determining the delivery item in accordance with the determination result of the second determining step. And a transporting step of transporting to a predetermined sorting box. 7. The method according to claim 1, wherein the second determination step includes determining that the destination information recognized in the recognition step is based on the specific destination code determined in the first determination step. It is determined whether or not it has a registered keyword.If it is determined that it has a registered keyword, it is determined that the specific delivery destination code is correct. 7. The sorting method according to claim 6, wherein it is determined that the specific delivery destination code is misread. 8. The method according to claim 1, wherein the destination information recognized in the recognizing step is based on the specific destination code determined in the first determining step. It is determined how many keywords among a plurality of keywords registered for each specific delivery destination code in the destination registration means. If it is determined that the specified delivery destination code has a predetermined number of keywords, the specific delivery destination code is 7. The sorting method according to claim 6, wherein if it is determined that the specific delivery destination code is correct and if it does not have the predetermined number of keywords, the specific delivery destination code is determined to be misread. 9. The method according to claim 6, wherein the delivery destination code and the specific delivery destination code are a postal code, and the delivery destination information is a delivery destination address of a delivery. Classification method. 10. The method according to claim 9, wherein the postal code is a seven-digit postal code.