JP2001035266A - Cable and identifying method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable and a cable identifying method, capable of easily identifying and controlling information as to where to connect it for every cable or core. SOLUTION: A scale value which increases uniformly according to a distance from the end part of this cable, and the lot number of the cable are indicated at an equal interval along the longitudinal direction of the cable on the outer jacked of a cable 1. The start value and the finish value of the scale value of each cable are registered, together with the lot number as electronic data in a data base, and cable data registered in the data base is retrieved by using the lot number and the scale value indicated on the jacket of the object cable to be retrieved as a retrieval key. Thereby, a cable identifying method for obtaining required data of the object cable to be retrieved can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to identification of cables for cables for various uses such as communication cables and power cables, and more particularly to a cable and a cable identification method which are easy to identify after installation. It is.

[0002]

2. Description of the Related Art Where a large number of communication cables and the like are laid and laid, the cables are congested and it is difficult to follow the path of the cables. Therefore, the congested cable,
How to identify and manage it is extremely important. By the way, in order to manage cables sufficiently, an ID that can identify each cable strictly is used for each cable.
It is conceivable to attach a number or the like. By attaching an ID number, identification of individual cables after laying is easy and reliable. Here, if the serial number of the cable is indicated on the jacket over the entire length of the cable at the time of manufacturing the factory,
This production number may be used as an ID number.
In other words, each cable is manufactured at the factory with a cable that is much longer than the product cable (cable used on site), and a large drum (hereinafter referred to as “parent drum”) is manufactured.
It is obtained by winding the necessary length and cutting the required length therefrom according to the order. It is easy to print and display the same character string at a specific interval on the cable wound on the parent drum in the longitudinal direction thereof. Even now, many cables display the manufacturing company, the manufacturing year, the cable model, and the like as a lot number for each parent drum during manufacturing.

[0003]

However, the ID number has no meaning unless it is assigned to each cable as a unique number for that cable. Therefore, the lot number of the parent drum cannot be used as the ID number of the cable. Incidentally, when attempting to impart an ID number coiled cable parent drum, is wound cable parent drum, is previously cut with any position, whether used as a cable of any length , Need to know in advance, is unrealistic. Also, even if the cutting position is determined in advance and an ID number is assigned, if a cable having a length different from the predetermined length is obtained from the parent drum, a different ID number is assigned to one cable, There may be a case where a plurality of cables having the same ID number may be formed, and there is a problem in identification, and it does not make sense as an ID number. In order to display the ID number over the entire length of each cable, it is necessary to either discontinue the above-mentioned batch production wound on the parent drum and manufacture it individually, or separately display it while winding the order length. Therefore, the cost burden is large.

[0004] Next, it is conceivable to display an ID number for each cable after cutting the cable from the parent drum. In this method, the purchased cable is
It is conceivable that the D number is additionally printed or stamped and displayed. However, displaying the ID number over the entire length of the cable requires a great deal of labor and increases the cost, so that only the ID number is displayed at a necessary place. Therefore, in general, information such as a device to which a cable is connected is written on a label or the like and attached to the middle of the cable or to the end of the cable, and the ID number is not displayed over the entire length of the cable. In addition, a cable includes not only a single-core cable having only one core wire, but also a multi-core cable having many core wires, and each core wire may be connected to a different connector. Therefore, it is necessary to identify and manage the connection destination for each cable core.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide an easily identifiable cable and a cable identification method capable of identifying and managing information such as a connection destination for each cable or each core wire. And

[Means for Solving the Problems]

In view of the above problems, the present inventors have made earnest efforts,
The present invention has been completed. That is, the cable according to the present invention has a scale value that is uniformly increased or decreased according to the distance from the end of the cable, at the same interval along the longitudinal direction of the cable, and the scale value of the cable. Is displayed.

In the cable of the present invention, at least one of a start value and an end value of the scale value and a difference value between the start value and the end value are represented by a set of a character and a bar code together with the lot number. Or a set of characters and a two-dimensional code,
Alternatively, only the characters, the barcode, or the two-dimensional code is displayed on the jacket of at least one end of the cable.

Here, the scale value means the length of the cable, and is printed or stamped at required intervals at predetermined intervals so as to simply increase (decrease) in the length direction of the cable over the entire length of the cable. It is displayed by such as. Also,
The lot number is a number assigned to each continuously manufactured cable, and is displayed by printing, engraving, or the like at predetermined intervals at necessary locations over the entire length of the cable, like the scale value. This lot number is usually assigned to each parent drum on which the cable has been wound. Therefore, if the cable is cut into many pieces from one parent drum, there will be many cables having the same lot number. However, many scale values displayed on the outer jacket of the cable wound on one parent drum are all different. Therefore, even if this cable is cut into a large number, if the scale value information at both ends is managed for each cable piece, it is possible to specify which cable piece, Can be known by a simple calculation (that is, the cable location is uniquely determined by specifying the lot number and scale value).

It is ideal that the lot number can be continuously increased after the production. However, it is also possible to reset the number every production year or every production year and start from 0 or 1. The lot number in that case becomes a unique number by being combined with the data of the production year. When there are a plurality of types of cables, a lot number may be independently assigned to each cable. The lot number in that case should be paired with the cable model data,
Become a unique number. If a plurality of companies manufacture cables of the same type and use them at the same place, a lot number may be independently assigned to each manufacturing company. The lot number in that case becomes a unique number by combining with the data of the manufacturing company.
It is common sense that the scale value at the time of manufacture starts from 0 or 1, but it may start from other larger values. If the scale values do not overlap,
There is no problem even if the same lot number is used for a separately manufactured drum. Also, when cutting according to the order, it is preferable that the start value and the final value of the scale displayed in the cable piece are displayed on a label or the like together with the lot number, and attached to both cable ends. . This is because this data is important identification data for identifying the cable.

In the cable of the present invention, the cable has a plurality of cores, and a tag is attached to each end of the core, and the lot number and the start value of the scale value are attached to the tag. The core number, or the lot number, the end value of the scale value, and the core number, as a set of a character and a barcode, or a set of a character and a two-dimensional code, or only a character, only a barcode, and a two-dimensional code It is characterized by being displayed only. The cable may be a single core, or may be a multiple core in which a plurality of cores are bundled in one jacket. The tag is
Attached to each of the cords, enabling individual identification.

The cable identification method according to the present invention further comprises a step of uniformly increasing or decreasing the cable jacket at least at equal intervals along the longitudinal direction of the cable according to the distance from the end of the cable. At least one of the start value and the end value of the scale value, or at least one of the start value and the end value of the scale value, for each cable for which the scale value and the lot number of the cable are displayed. Was registered in the database as digitized data together with the lot number, and the lot number and the scale value displayed on the outer jacket of the cable to be searched were used as search keys, and were registered in the database. By searching for cable data, required data of the cable to be searched is obtained. Here, the cable may be as described in claim 1 or 2. Since the start value of the scale value and the difference value are always displayed on the cable, the difference value can be easily obtained. Note that the search requires that the lot numbers match. In addition, the scale value is a condition that the start value of the scale value is equal to or less than the scale value of the cable to be searched and the end value of the scale value is equal to or greater than the scale value of the cable to be searched. However, when the scale values are assigned in descending order (when the end value is smaller than the start value of the scale value), the start value of the scale value is greater than or equal to the scale value of the cable to be searched, and the scale end value is the search target. The condition is that it is less than the scale value of the cable.

Further, according to the cable identification method of the present invention, when the cable has a plurality of cores, a tag is attached to each end of the core, and the lot number and the tag are attached to the tag. The start value of the scale value and the core number, or the lot number, the end value of the scale value, and the core number are represented by a set of characters and a barcode, or a set of characters and a two-dimensional code, or only a character. Only the code is displayed with only the two-dimensional code, and in the database, the data on the tag is registered in an electronic form, and the data read from the barcode or the two-dimensional code is used as a search key, It is characterized in that the core wire is searched to obtain required data.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. << First Embodiment >> [Configuration of Cable] FIG. 1 shows a cable according to a first embodiment of the present invention. The cable 1 has a structure in which a number of optical cords 12 for transmitting optical signals are bundled and the outside is collectively covered. This outer coating is referred to as jacket 11.
At both ends of the cable 1, strip the jacket 11 and remove the optical cord 1.
2 are exposed, and optical connector plugs 13 corresponding to the number of optical cords 12 are attached to the end of the optical cord 12. The optical connector plug 13 is for attaching to an optical transmission device (not shown) or a connector adapter of an optical wiring board. The appropriate length of the portion where the optical cord 12 is exposed by stripping the jacket 11 generally depends on the device to be connected.

On the outer cover 11, display characters for identification are displayed at intervals of 1 m. It is an example of the character in which the character string drawn and indicated by the arrow in FIG. 1 is displayed. Note that this scale value is displayed on some communication cables even now, and is called the length mark.
It simply means distance.

0204 0152-03-01 1999 is displayed on the jacket 11 near one end of the cable 1 (the left end of the cable 1 in FIG. 1). The first “0204” is the scale value (in meters), and the numerical value increases by one every one meter. The next “0152” is a lot number (a lot number in a narrow sense). The next “03” indicates the cable type and “0”
"1" is the identification number of the manufacturing company. The last "199
"9" indicates the production year of the cable lot. The lot number in a narrow sense is assumed to be assigned independently by each manufacturing company for each cable type, each manufacturing year, and the like. By the way, the lot number is interpreted in a broad sense and “015203011
999 ", it becomes unique as data. That is, the number is unique to the parent drum. Although the scale value and the lot number in a narrow sense are preferably displayed adjacent to each other as described above, they may be displayed separately from each other.

Each of the cables 1 · 1 obtained by cutting the long cable wound around one parent drum is obtained.
The contents of the character strings attached to 1... Have the same lot numbers (lot numbers in a broad sense) other than the scale value indicating the distance at any point of each cable 1. For example, as shown in FIG. 1, the middle part of the cable 1 is marked with 0223 0152-03-01 1999, and the opposite end of the cable 1 (the right end of the cable 1 in FIG. 1) is , 0253 0152-03-01 1999. However, even if the lot number in the broad sense is the same, the scale value displayed on each cable 1.1 is different. Therefore, if you know the start value and end value of the scale value for each cable 1, 1
It is easy to identify 1... Individually. FIG.
The cable 1 shown in FIG. 1 is obtained by cutting and cutting out a portion of 204 m to 253 m of a continuous long cable wound around a parent drum.

By the way, conventionally, the cable model (type) and the company that manufactured the cable are not represented by the identification number of the cable type such as “03” or the identification number of the company such as “01” but by the abbreviated name or logo. It is usually indicated by a mark. For example, "NTT-2-64SM-IF
"FRPE" indicates the cable type and the sheath material (details will be described later). Since this has an advantage that the operator can visually recognize it by itself, it may be displayed together with the above-mentioned scale value or a character string constituting a lot number in a broad sense. At this time, the above-mentioned character string may be different from the line instead of one line. Alternatively, both may be color-coded. Further, since there is an overlap between the two, it is also possible to omit the display of the identification number of the cable type and the identification number of the manufacturer which constitute the lot number in a broad sense. However, when you omit the display,
Since all of the lot numbers in a broad sense are not directly printed, it is preferable to simplify the input by devising a database application or the like. For example, there is a function of selecting a corresponding one from a list of cable model names and a list of manufacturing companies on a personal computer screen, and converting it into an identification number.

The display of the scale value and the lot number in a broad sense in the present invention is preferably carried out at two or more locations in the circumferential direction of the cross section. This is because it is difficult to see the back side (opposite side) of the cable 1 by pulling out or twisting the cable 1 just because the display is not visible where the cable 1 is congested.

In this embodiment, a display line 22 is displayed on the outer cover 11 so as to connect the display characters 21 for identification. This is to make it easier to find the identification display characters 21. If a broken line is displayed as shown in the figure, the ink cost can be saved as compared with the solid line display. Also, in places where conventional cables are mixed and wired,
The display line 22 also has an advantage that it can be easily distinguished from a conventional cable.

In this embodiment, cable identification labels 3 indicating cable information are attached to both ends of the cable 1 (see FIG. 1). In the example shown in FIG. 1, the display character string 31
Is as follows. NTT-2-64SM-IF FRPE 0152-03-01 1999 0204-0253-0 First, "NTT-2-64SM-1F" is the cable model name, and "FRPE" is the type of jacket material (flame retardant polyethylene). Means Next, "0152-03-01"
Similarly to the identification display characters 21 displayed on the outer cover 11, a lot number in a narrow sense, an identification number of a cable type, and an identification number of a manufacturing company are sequentially provided, and "1999" represents a cable lot manufacturing year. “0204-0253”
The start value and the end value of the scale value in this cable, and the last “0” is an identifier for distinguishing both ends of the cable. In this example, the end with the smaller scale value is “0” and the end with the larger scale value is “1”.

It is preferable that the contents displayed on the cable identification label 3 include all the article data to be input to the database when the cable 1 is laid. Regarding the input to the database, it is preferable to adopt an input method by a device using a barcode or a two-dimensional code 32 rather than a manual input because there is no error. In this embodiment, a two-dimensional code 32 is displayed on the cable identification label 3 together. In the two-dimensional code 32, data equivalent to the display character string 31 displayed on the cable identification label 3 is recorded. However, due to space restrictions and convenience, some of the data in the two-dimensional code 32 may be omitted from the display character string 31 or conversely, the two-dimensional code 3 may be omitted.
2 may be stored in the display character string 31.

The two-dimensional code 32 records data in a two-dimensional pattern, and may be called a two-dimensional barcode or a two-dimensional symbol (on the other hand, a general barcode is called a one-dimensional barcode). There is). 2
The type of the dimension code 32 is QRCode, MicroQ
R, DataCode, VeriCode, Aztec
Code, PDF417, MaxiCode, CPCo
Although there are many types such as de, any of them may be applied to the present invention. In FIG. 1, the two-dimensional code 32 is schematically displayed. The two-dimensional code 32 has an advantage that it can be displayed in a small space.

An example of character data recorded in the two-dimensional code 32 is shown below. 1NTT-2-64SM-IF FRPE 123456780152-03-01 1999 020
4-0253-0 Actually, it is not necessary to record the hyphen "-" or space character in the middle as data. The difference from the preceding display character string 31 is that the first “1” and the middle “1234567”
8 ". The first “1” is a flag indicating the distinction of the data format. This is a device for giving versatility of the two-dimensional code 32. Even when a different data format is applied to management of a different kind of article, by changing this number, it becomes possible to switch the internal processing of the database application. “12345678” in the middle means an article code managed in the database. This represents the previous article name "NTT-2-64SM-IF",
It is provided for a database that manages many items other than cables in common. 2D code 32
Since a large amount of data can be recorded, if it is useful for database operation, even if it is duplicated data as in this example, it can be added.

In the case of a one-dimensional barcode, the amount of data is limited. However, (a) data is reduced as much as possible, (b) a plurality of barcodes are used, and (c) manual input is used together. , Can be applied. In terms of reducing the data amount, “0204-39-0” or “0253-39” is used instead of “0204--0253-0”.
As in the case of "-0", the number of digits can be reduced. Of course, also in this case, the hyphen and the blank character are not actually recorded. Here, “0204” is the scale start value and “0
“253” corresponds to a scale end value, and “39” corresponds to a difference value which is a difference between a start value and an end value of the scale value, that is, a cable length. If the cable piece length is less than 100 m, it can be represented by two digits, so that the number of digits can be reduced as compared with displaying the start value and end value as they are. When reading data from this barcode and registering it in the database, a set of a scale start value and an end value can be obtained by a conversion process without using a difference value. In addition, the implementation of the present invention is
If it is set to 2000 or later,
The high-order digits can be omitted and two or three digits can be used.

In the present embodiment, the scale value is displayed every 1 m, but another unit such as feet may be used. Further, the scale value does not have to be increased by one. Alternatively, it may be displayed at intervals of any arbitrary unit regardless of the unit system such as meters or inches. This is because the display can be easily converted into a necessary unit system as long as it is displayed at regular intervals. Incidentally, the display interval of the scale value or the like is determined by the balance between the visibility and the cost required for display.

[Cable Identification Method] Next, the cable identification method of the present invention will be described. FIG. 2 is an example of a cable management table. FIG. 3 is a hardware configuration example of a cable identification device used in the cable identification method according to the present embodiment. In FIG. 3, the cable identification device 50 is
It comprises an arithmetic unit 51, an external storage device 52, an input device 53, and an output device 54. The arithmetic device 51 controls the entire cable identification device 50 as a whole. A database is registered in the external storage device 52. Input device 53
Consists of a keyboard, a barcode reader, a mouse, and the like. The output device 54 includes a CRT, a printer, and the like.

For identification of the cable 1, a database is assumed. In the database, the lot numbers in a broad sense displayed on the cable identification labels 3 at both ends of the cable 1 are input in the form of items. The two items at the right end of the table shown in FIG. 2 are input by the connection partner devices at both ends of the cable. This database originally contains these two items,
Wiring route data, purchase date, cable laying date, etc.
It is preferable to add a large number of data items useful for facility operation, but the description of specific data items is omitted because it deviates from the content of the present invention.

According to the cable identification method of the present invention, when one cable 1 is damaged in a place where the cable 1 is congested, for example, the connecting devices at both ends of the cable 1 are as follows. Can be searched for by simple work This enables inspection and removal work of the cable 1.

First, a broad lot number displayed on the jacket 11 of the target cable 1 is found. A search screen of the database of the cable identification device 50 is displayed on the CRT as the output device 54. FIG. 4 shows an example of the database search screen. If all the input items (that is, the whole lot number in a broad sense) are input and the "search" button is pressed, the database is searched, and the target cable data appears in a row in the search result table.

However, since the input to the cable identification device 50 is a manual operation, it is troublesome to input all the data, and an input error easily occurs. Therefore, a cable that meets the conditions is searched and displayed without inputting all the input items. The cable 1 to be searched is not searched for from all the cable pieces 1.1 that have been shipped nationwide or abroad, but for the cables 1.1 that are laid in a specific building or a specific area. This is because, since the search is performed from the database, the target cable 1 can often be specified even if the entry of items is omitted to some extent. If a plurality of cable data items are displayed and cable 1 cannot be specified, additional items are entered for items that have not been entered, and a button of “refine search” (see FIG. 4) is pressed. Be executed.

In the database search processing, character string matches are used as search conditions for "lot number", "cable type", "manufacturer", and "lot manufacturing year". As for the “scale value”, the search condition is that the scale start value is equal to or less than the input scale value and the scale end value is equal to or greater than the input scale value. What satisfies all of them is the cable 1 to be searched. However, when the scale values are assigned in descending order, the search condition of the scale values is opposite to the case where the scale values are assigned in ascending order.

In FIG. 4, the items of the search result table displayed on the screen of the CRT, which is the output device 54 of the cable identification device 50, are omitted, but the items are shown in FIG.
May be the same as the management table. The table in FIG. 4 allows the display of a large number of cables 1... By scrolling up and down. This table satisfies the original purpose because the names of the connecting devices at both ends of the cable are included in the table. From the difference between the input scale value and the scale start value or scale end value of the search result, the distances to the connection devices at both ends can be determined. Further, if the target cable data in the table is double-clicked with the mouse as the input device 53, the detailed data on the cable 1 is displayed on another screen, so that the convenience is improved.

<< Second Embodiment >> Next, a cable according to a second embodiment of the present invention will be described with reference to the drawings.
Members and elements common to the first embodiment are denoted by the same reference numerals, and description thereof is omitted. FIG. 5 is a diagram illustrating a cable according to the second embodiment.

[Structure of Cable] The cable 1 is the same as that of the first embodiment, but each optical cord 1 is
The two optical codes 12 and one optical code 1
Tags 4 for identifying each of them 2 are attached (see FIG. 5A). In this tag 4, the lot number of the cable 1, the start value of the scale value, and the core number 41, or the lot number of the cable, the end value of the scale value, and the core number 41,
This is displayed as a character, a barcode, a two-dimensional code 42, or a pair of a character and another (see FIG. 5B). Note that the scale value, the start value, the end value, the lot number, and the like have the contents described in the first embodiment.

In the present embodiment, the tag 4 is made of two plastic parts, front and back, and one optical cord 12 is mechanically sandwiched between the two plastic parts and attached to the optical cord 12. A core number 41 is engraved on the tag 4 with a laser. “0” in FIG.
"4" is the cord number 41. The core number 41 is a number for distinguishing each core bundled in the jacket 11 of the cable 1. For example, 40 cores (optical cord 1
If 2) is accommodated, the core number 41 is 1 to 4
It reaches 0.

In this embodiment, the two-dimensional code 4
2 is also engraved on the tag 4 with a laser. The character data recorded in the two-dimensional code 42 is 2 0152-03-01 1999 0204-0-04. The first "2" is a data format (flag), "0152-03-01 1999" is a lot number in a broad sense, the subsequent "0204" is a scale start value of the cable, and "0" is to distinguish both ends of the cable 1. , “04” represents a cord number. In this case, a united number excluding the first “2” corresponds to the ID number representing the end of the cord. This is also the ID number of the optical connector plug 13 attached to the end of the optical cord 12.
Note that an end value may be used instead of the start value of the scale value.

[Cable identification method] Each cable 1.1
For the identification of ・, a database is created in the cable identification device 50 for the end of each optical code 12. By inputting the connector adapter number of the optical transmission device to which the optical connector plug 13 is connected, the connection information of the cable 1 for each optical code 12 (core unit) can be identified and managed. If the two-dimensional code 42 of the tag 4 is read when the optical connector 12 is connected or disconnected, the input operation to the database is simplified. Also, by accessing the database and confirming immediately before the work, it is useful to prevent erroneous work.

The present invention described above is not limited to the above-described embodiment, but can be appropriately modified and implemented within the scope of achieving the objects and effects of the present invention. For example, spreadsheet software for a personal computer may be used as the database. Examples of spreadsheet software include Microsoft Excel (EXCEL) and Lotus 1-2-3. The use of these spreadsheet macro functions facilitates cable search and data registration. If the number of cables 1 to be identified is limited, it is possible to identify and manage the cables by creating a table corresponding to FIG. 2 in a paper-based book.
The cable identification device consists of a remote server (with a database) and a portable terminal device such as a mobile phone. The database of the server is accessed from a mobile phone or the like to search for data and write data. Can be performed. The cable is not limited to transmitting an optical signal, and the present invention can be applied to an electric cable transmitting an electric signal or a power supply current. Furthermore, the present invention can be applied to a fluid hose, for example, an air hose that transmits air for instrumentation, a gas hose that supplies gas to an analyzer, and the like.

[0039]

As described above, according to the present invention, it is possible to individually identify a cable from display data of an arbitrary portion of the cable by simply displaying a jacket on the cable and using a database at the time of manufacture. Therefore, the operation and maintenance of the communication system and the power supply system can be dramatically improved. In addition, since the identification number of the cable at this time can also be used for identification of a core in the cable, identification of the core level can be easily performed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a cable according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a cable management table according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating a hardware configuration example of a cable identification device used in the cable identification method of the present invention.

FIG. 4 is a diagram showing an example of a database search screen according to the cable identification method of the present invention.

FIG. 5 is a view showing a cable according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cable (optical fiber cable) 11 Jacket (cable jacket) 12 Optical code (core wire) 13 Optical connector flag 21 Identification display character 22 Display line 3 Cable identification label 31 Display character string 32 Two-dimensional code 4 Tag 41 core Line number 42 2D code

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Fumi Izumida 2-3-1 Otemachi, Chiyoda-ku, Tokyo Within Nippon Telegraph and Telephone Corporation (72) Inventor Nobuo Tomita 2-3-3, Otemachi, Chiyoda-ku, Tokyo No. 1 Inside Nippon Telegraph and Telephone Corporation (72) Hiroshi Yagi 2-3-1 Otemachi, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Kenichi Tomita 2-chome Otemachi, Chiyoda-ku, Tokyo No.3-1 Nippon Telegraph and Telephone Corporation F-term (reference) 5G315 GA03 HA01 HA04

Claims (5)

[Claims] 1. A scale value that increases or decreases uniformly according to a distance from an end of the cable and a lot number of the cable at an equal interval along a longitudinal direction of the cable. A cable characterized by that is displayed. 2. A method according to claim 1, wherein at least one of a start value and an end value of the scale value and a difference value between the start value and the end value are set together with the lot number in a set of a character and a bar code, or a character and a two-dimensional code. The cable according to claim 1, wherein the cable is displayed on the outer jacket of at least one end of the cable in the form of a set of characters, only a barcode, or only a two-dimensional code. 3. The cable has a plurality of cores, and tags are attached to respective ends of the cores, and the lot number, the starting value of the scale value and the core number, or the tag is attached to the tag. A lot number, an end value of the scale value, and a core number are represented by a set of a character and a barcode, or a set of a character and a two-dimensional code,
3. The display according to claim 1 or 2, wherein the display is made of only characters, only barcodes, and only two-dimensional codes.
Cable described in. 4. A scale value that increases or decreases uniformly according to the distance from the end of the cable at least at equal intervals along the longitudinal direction of the cable, and a lot number of the cable, in the jacket of the cable. For each of the cables displayed, at least the start value and the end value of the scale value of each of the cables, or the difference value between at least one of the start value or the end value of the scale value and both, together with the lot number By registering in the database as digitized data, and using the lot number and the scale value displayed on the jacket of the cable to be searched as a search key, searching for the cable data registered in the database, A cable identification method characterized by acquiring required data of a cable to be searched. 5. When the cable has a plurality of cores, a tag is attached to each end of the core,
In this tag, the lot number, the start value of the scale value, and the core number, or the lot number, the end value of the scale value, and the core number, as a set of a character and a bar code, or two characters and
A set of dimension codes, or just characters, just barcodes,
The data on the tag is digitized and registered in the database, and the data read from the barcode or the two-dimensional code is used as a search key in the database, and the cord is displayed. The cable identification method according to claim 4, wherein the required data is obtained by searching for a cable.