JPH1011483A - Simple display method for wiring area - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the simple display method for a wiring area which automates the entry of access network facilities and makes a visual display so that service areas on respective RTs (remote terminal) wires are quite obvious. SOLUTION: Specificed map information and RT information are taken out (ST10) and an electric pole ID list and a suspension wire ID list are extracted from the said RT information (ST12). Then electric poles based upon the electric pole ID list and suspension wires based upon the suspension wire ID list are displayed on a map display on the basis of the map information (S14); and electric poles equipped with an RT among the displayed electric poles are retrieved and displayed distinguishably, and a user nearby the displayed electric pole is also displayed on the map (ST16-ST20). A range of 30m around one or more electric poles connected to each of the distinguishably displayed RT electric poles is displayed by a visually different method (color, shape, painting-out pattern, blinking rhythm, 2D/3D display) by the groups of the RT electric poles (ST28).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for confirming a wiring area of a remote terminal equipment when constructing an access network using an optical transmission line or the like.

[0002]

2. Description of the Related Art A technology for confirming (or simulating) a wiring area of a remote terminal facility when constructing an optical transmission line network in an operation system for designing an access network configuration facility using an optical cable (optical fiber) or the like. Has not yet been established.

[0003] Network topologies for wiring from an equipment center (station) to a user are classified into a single star that is wired one core at a time from the equipment center and a double star that branches from the middle. As the double star, a passive double star for installing a star coupler and an active double star for installing a remote terminal (hereinafter abbreviated as RT) are under study. Active Double Star is R
This is a method in which a multiplexed optical signal is transmitted to an T through an optical fiber, and wiring after RT is wired with a metal (metal wiring material).

[0004] RT means that a lot of user information is bundled and transmitted by an optical transmission system from a station to a neighborhood of a user's house, and then transmitted using an existing metallic pair line (a combination of metal signal lines). Terminal that is typically used in the vicinity of the user. This RT device is installed before the optical fiber when the optical fiber is laid radially from the station.

[0005] Regarding the system using the RT, a report by Sayahara et al. ("Economical optical subscriber system-economical A / I"
・ CT / RT system ”, NTT Technical Journal, 19
91, 10, P13). In addition, a report by Okuda et al. (“Study on Effectiveness of Multicast Function in Multimedia Access System” IEICE Tech.
994, p. 43) describes how to use RT.

[0006] However, there is no description about a method of visually expressing the RT wiring area, and there is no other report. Furthermore, there is no report on software (operation system) for visually expressing the RT wiring area. In addition, there is no report on a pole-mounted RT, which is a technology that will be realized (practiced).

[0007]

In an operation system for design simulation of access network equipment, there is no conventional technique for displaying an RT wiring area, and the equipment is manually entered (input) on paper (or a computer screen). While simulating the design. In such a method of manually filling in the paper, when designing a different RT wiring pattern, there is a trouble that the user has to create a paper each time and design the different RT wiring patterns. It is not easy to change the description.

SUMMARY OF THE INVENTION An object of the present invention is to provide a simple display method of a wiring area in which entry of access network equipment is automated and a visual display is provided so that a service area on each RT wiring can be seen at a glance.

[0009]

Means for Solving the Problems In order to achieve the above object, the following processing is performed in the simplified wiring area display method of the present invention. That is, predetermined map information and wiring information (RT information) are extracted from the database (step ST10 in FIG. 10);
Information) to wiring node information (Pole ID list in FIG. 8)
And the inter-node wiring information (the drop line ID list in FIG. 9) is extracted (step ST12); the wiring nodes (the telephone poles) and the inter-nodes based on the node information (the telephone pole ID list) are extracted on the map based on the map information. The wiring (stripping line) based on the wiring information (stripping line ID list) is displayed (step ST14, FIG. 1); the displayed wiring nodes (electric poles) equipped with a predetermined terminal device (RT) are identified. In addition to the display, the user near the displayed wiring node (power pole) is displayed on the map (step ST16 to step ST20, FIG. 2); for each terminal equipment node (RT power pole) identified and displayed, 1 connected to terminal equipment node (RT telephone pole)
The above specific range (30) around the wiring node (pole)
m range) is visually different for each terminal equipment node (RT pole) identified and displayed (color, shape,
The display is performed according to a paint pattern, a blinking rhythm, and the like (step ST28).

[0010] Here, the terminal device (RT) installed at the wiring node (electric pole) includes information on upstream wiring (upstream suspension line list, FIG. 8) from the upstream to the wiring node (electric pole). It has downstream wiring information (downstream suspension line list, FIG. 8) from a node (pole) to the downstream, and the inter-node wiring information (suspension line ID list) includes the wiring (suspension line) indicated by this information. 9 (upper telephone pole ID, FIG. 9), and downstream wiring node information (lower telephone pole ID, FIG. 9) of the wiring (stripping line) indicated by this information.

The upstream wiring information (upstream suspension line list);
A specific wiring node (power pole) based on any of the downstream wiring information (downstream suspension line list), the upstream wiring node information (upper power pole ID), and the downstream wiring node information (lower power pole ID) By following the relationship between the terminal equipment node (RT telephone pole) and one or more of the wiring nodes (electric poles) connected to the terminal equipment node (RT telephone pole), a specific range (30 m range) around the terminal equipment node (RT telephone pole) can be visually determined. They can be displayed in the same way (such as in the same color).

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a simplified display method of a wiring area (RT wiring area) according to an embodiment of the present invention; Note that, in order to avoid redundant description, common or similar reference numerals are used for components that are common or similar in configuration, operation, or function over a plurality of drawings.

FIG. 7 illustrates an outline of a hardware configuration for performing a simple display of the RT wiring area. here,
A computer 10 having a master database 12 using a large-capacity disk array or the like is used as a host computer.

The computer 10 is connected to a network cable 20 such as an Ethernet. Nodes 22A, 2A,
2B... Are attached, and each node 2A, 22B.
Workstations (or personal computers) 30A, 30 used as T wiring area simulators
B ... are connected.

Each of the workstations 30A, 30B ...
Has its own local databases 32A, 32B,... In its own internal hard disk. Also,
Each of the workstations 30A, 30B... Is provided with a high-resolution large bitmap display (17
~ 21 inch class).

The host computer 10 is used as a server for each of the workstations 30A, 30B,..., And individual RT wiring area simulation (RT wiring design) can be performed independently at each of the workstations 30A, 30B,. .

Each of the local databases 32A, 32B... Of the workstations 30A, 30B... Holds map information (map information) and RT information (information on telephone poles, suspension lines, users, etc.) of a specific area. For example, the database 32A of the workstation 30A
Has map information and RT information of Chiyoda-ku, Tokyo, and the database 32B of the workstation 30B has map information and RT information of Shinjuku-ku, Tokyo.

The master database 12 of the host computer 10 stores map information and RT information of all the workstations 30A, 30B... On the network. For example, the master database 12 stores map information and RT information for all 23 wards of Tokyo.

For example, when performing RT wiring simulation of a specific area extending from Chiyoda-ku to Shinjuku-ku at the workstation 30A, the workstation 30A accesses the master database 12 of the host via a network, and from there, maps information of the Shinjuku-ku. And download the RT information. Then, the workstation 30A uses the map information and the RT information of the Chiyoda ward in its local database 32A and the downloaded map information and the RT information of the Shinjuku ward, and the specific area extending from the adjacent Chiyoda ward to the Shinjuku ward. Can be simulated for RT wiring.

The system software of the host computer 10 and / or each of the workstations 30A, 30B... Includes a UNI having a graphical user interface (GUI) such as an X-window.
A general-purpose operating system such as X can be used.
The workstations 30A, 30B... May be personal computers on which a GUI type multitasking operating system is installed.

FIGS. 1 to 6 show software for visually displaying (simple display of an RT wiring area) a telephone pole, a suspension line, a user, and the like in a target area when performing the RT wiring simulation. This will be described with reference to FIGS.

FIG. 10 is a flow chart for explaining the contents of software executed in each workstation exemplified in FIG. For example, when performing RT wiring simulation in a specific area in Chiyoda-ku, Tokyo at workstation 30A, first, map information and RT information of Chiyoda-ku are read from local database 32A or master database 12 (step ST10). Then, the central processing unit (CPU (not shown)) of the workstation 30A extracts a telephone pole list (FIG. 8) and a drop line list (FIG. 9) of the target area from the read RT information (step ST1).
2).

A utility pole, which is a base facility, has an upstream and downstream drop line ID list (a drop line list) connected to the pole as shown in FIG. Also, the suspension line is
As shown in FIG. 9, there are upper and lower telephone pole ID lists (power pole lists).

These IDs are used when indicating a specific one, and are information such as "identification numbers" expressed by combining numbers and alphabets. The ID used here is a number used uniquely by this system, and the same ID number is not assigned to different items (poles, suspension lines). That is, it is possible to specify the corresponding telephone pole or the suspension line only by specifying the ID.

Here, a method is used in which the utility poles arranged on the map do not have the upper and lower utility pole IDs in advance, and instead, the information is registered in the suspension line connected to the utility pole ( 8 and 9). The upper and lower searches are based on the data registered in the “line”.

Next, the CPU of the workstation 30A
Displays a map (map) of the target area on its own bitmap display (color C) based on the read map information.
RT) Draw on top. Further, the CPU performs the processing based on the extracted telephone pole list (FIG. 8) and the drop line list (FIG. 9).
The utility poles and the suspension lines registered for the target area are displayed overlaid on the map drawn on the bitmap display (step ST14).

FIG. 1 exemplifies a case where the connection / arrangement state of the telephone poles and the suspension lines obtained in this way is displayed two-dimensionally. A utility pole ID as illustrated in FIG. 8 is individually assigned to each of the illustrated utility poles, and each utility pole displayed in FIG. 1 is specified by the utility pole ID. Similarly, each of the illustrated suspension lines is individually assigned a suspension line ID as illustrated in FIG. 9, and the suspension line ID identifies each suspension line displayed in FIG. 1. The connection relationship between each telephone pole and each suspension line can be known by referring to FIG. 8 or FIG.

Here, preconditions in this embodiment will be described. That is, base equipment such as telephone poles and suspension lines is created in advance on the map, and registered in the database. The telephone poles thus created are arranged in order from the top (lower ID number) as shown in FIG.

The same is true even if the suspension line is branched.
For example, the power pole 2 has an upper power pole 1 and a lower power pole 3 and a power pole 2-1. This data is registered in the database (of the system). Therefore, if the power pole above the power pole 2 is examined, the power pole 1 can be obtained. Similarly, when the electric pole below the electric pole 2 is examined, the electric pole 3 and the electric pole 2-1 are obtained. These data (RT information) are indispensable when expressing the RT wiring area.

The utility poles arranged on the map are extracted in order from the utility pole located above (small ID). If the telephone pole at the top (power pole ID = 1) can be confirmed, it is confirmed from the data (list in FIG. 8) stored in the database whether or not the RT is installed on the telephone pole.

The RT information registered in the databases 12 and 32A includes "Which telephone pole is the remote terminal RT
Is installed? "Is also included. This flag is indicated by an * mark attached to the ID number in FIG. CPU of workstation 30A
Searches the telephone pole list with the * mark from the telephone pole list in FIG. 8 to find the telephone pole on which the RT is installed (in this example, the telephone poles with IDs “2” and “5”) (step ST1).
6). That is, it is checked whether or not RT is installed on each telephone pole by checking whether or not the ID is marked with an * mark (RT flag) for each telephone pole. If an RT is installed on the checked utility pole, the wiring area is displayed centering on the utility pole.

When an RT installation power pole is found, as shown in FIG. 2, a mark <RT installation power pole>
RT> is displayed beside the utility poles with IDs "2" and "5" (step ST18). At this time, the user located near the found RT power pole is also displayed with the <house shape> mark.

When the number of users in the target area is large,
If all the users are displayed at the same time, the display is crowded and visibility deteriorates. Therefore, the displayed users are limited to the users located near the found RT power pole. If there is no such a problem of “decrease in visibility”, step ST
All users in the target area may be displayed at the stage 14 (the state of FIG. 1).

In the case of searching for a telephone pole on which an RT is installed, one of the embodiments of the present invention is to follow the relationship between the telephone pole and the upper and lower parts of the suspension line based on the registered data (FIGS. 8 and 9). There is a point. That is, the utility pole owns the upper and lower list of suspended poles, while the pole also owns the upper and lower list of suspended poles. If the lower part is searched in order from the upper part using the possession list, one route is finally completed.

In this search, it is also examined whether or not the RT is installed on the telephone pole. As will be described later (at step ST28), if an RT is installed, a specific color (or pattern) is allocated, and the same color (same pattern) is allocated to the next RT installation power pole, thereby forming the same RT group. The display of the wiring area is completed.

In FIG. 2, users (subscribers) are arranged, and facilities such as cables are arranged according to the number of lines required by these users. The RT is arranged on the telephone pole as required.

In the above procedure, the only manual operation to be performed by the operator of the workstation 30A is to specify a target area (here, a specific area in Chiyoda-ku, Tokyo). If the map information and the RT information of the target area have been registered in the database 32A or the database 12, the display of FIGS. 1 and 2 is automatically performed only by specifying the target area.

Next, when the operator instructs "simple display of RT wiring area" (step ST20, Yes), first, it is checked whether or not there is designated data on the display environment of the wiring area (step ST22). The designation data specifies how the wiring area is displayed (step ST24). In other words, the color of the wiring area (grayscale when using a monochrome display), shape, fill pattern, range (area size), blinking rhythm (when the display blinks at various paces for each area), display format (two-dimensional display Or three-dimensional display) is specified as desired by the operator.

If the display environment of the wiring area is not specified, default data of the system is used (step ST26). Based on the display environment specified in step ST24 or the default display environment to be used in step ST26, the first searched R
RT (Telephone pole ID) searched next from T (Telephone pole ID2)
5) (L23, L34, L45, L22)
1, L331, L3132)
= 2, 3, 4, 2-1, 3-1, 3-2), a predetermined area (a user area that can be covered by the RT equipment) is displayed prominently (step ST28).

Similarly, the suspension lines (L56, L67, L551, L5152, L56, L67, L551, L5152) from the second searched RT (the telephone pole ID5) to the third searched RT (not shown).
L5253, L52521)
= 5, 6, 5-1, 5-2, 5-3, 5-2-1), a predetermined area (user area that can be covered by the RT equipment) is displayed prominently (step ST2).
8).

The display operation in step ST28 is executed up to the last searched RT pole, but the screen output to the display of the workstation 30A may be only a part of the screen (the part not output is screen switching). Or it can be displayed on the screen by scrolling).

When the operation of step ST28 is completed, an RT wiring area is obtained, for example, as shown in FIG. 3, in which a predetermined area around each telephone pole is displayed in a specific color or shape.

By the data input at step ST24, only the display area of the specific RT group during the simulation work can be blinked for the purpose of displaying that "the operation of the operator is undetermined".

A telephone pole, a suspension line,
And / or add / delete / relocate users,
The operator of the workstation 30A (30B) in FIG. 7 can appropriately perform the operation using a keyboard, a mouse, a tablet, or the like (not shown). The addition / deletion / location change of the utility pole, the suspension line, and / or the user determined by the simulation is registered in the local database 32A (32B) and the master database 12 (by changing the file name if necessary).

In FIG. 3, RT wiring areas in a plurality of regions are shown by a plurality of overlapping windows (P1 to Pn). For example, the window P1 shows the RT wiring area in Nibancho, Chiyoda-ku, the window P2 shows the RT wiring area in Yobancho, Chiyoda-ku, and the window Pn shows the RT wiring area around the Imperial Palace.

Here, if the default data of step ST26 is used, the RT wiring area of the RT group (ID = 2, 3, 4, 2-1, 3-1, 3-2) of telephone pole ID2 is , Are displayed as a set of squares of a specific color filled with oblique lines (each square corresponds to 30 mx 30 m in an actual dimension). In addition, R of telephone pole ID5
T group (ID = 5,6,5-1,5-2,5-3,
The RT-wiring area of 5-2-1) is displayed as a set of squares of a specific color, which are painted out by dividing broken lines. The display of the set of squares is automatically performed without the operation of the operator.

The grouping process for each RT group can be automatically performed based on the ID lists shown in FIGS. That is, when an electric pole is specified by its ID and the electric pole ID list of FIG. 8 is referred to, the upstream suspension line and the downstream suspension line of the electric pole can be identified. Also, a certain suspension line is identified by its ID, and the suspension line ID of FIG.
Referring to the list, it is possible to specify the upper power pole and the lower power pole of the suspension line. In this way, by tracing each telephone pole and the connecting line connected thereto with reference to the list of FIG. 8 or FIG.
It can be executed automatically.

If the operator data input in step ST24 is used in the display in step ST28, for example, as shown in FIG.
The RT wiring areas of the 2 RT groups (ID = 2, 3, 4, 2-1 and 3-1 and 3-2) are displayed as a set of circles of a specific color filled with oblique lines (each circle has a different color). The actual dimension is equivalent to 20 m in diameter if the operator specifies 20 m). In addition, the RT group of telephone pole ID5 (ID = 5, 6, 5-1, 5-2, 5-3, 5-2)
The -1) RT wiring area is displayed as a set of circles of a specific color, which are painted out by dividing broken lines. The display of these circular sets is also performed automatically without the operation of the operator.

Alternatively, according to the contents of the operator input in step ST24, for example, as shown in FIG. 5, the RT wiring area of the RT group of telephone pole ID2 is displayed as a set of rectangles of a specific color (for example, green) filled with oblique lines. However, the RT wiring area of the RT group of the telephone pole ID5 can be displayed as a set of circles of a specific color (for example, green) painted with a broken line. These displays can also be performed automatically without operator operation.

Further, according to the contents of the operator input in step ST24, as shown in FIG. 6, for example, as shown in FIG. 6, the RT wiring area of the RT group of telephone pole ID2 is a set of rectangles of a specific color (for example, green) filled with oblique lines. It is also possible to display and display the RT wiring area of the RT group of the telephone pole ID 5 as a set of circles of another color (for example, light blue) painted with a cross hatch. These displays can also be performed automatically without operator operation.

In other words, as can be seen from FIG. 6, the shape surrounding the area may be changed for each RT (the first RT cover area is circular; the second RT cover area is square; the third RT Cover area is pentagon; fourth RT cover area is hexagon; third RT cover area is star hexagon = △ and △ overlapped; etc.).

Although the examples shown in FIGS. 1 to 6 are all two-dimensional displays, the display of the RT wiring area can also be performed in three dimensions. For example, in the two-dimensional display as shown in FIG. 4, when the arrangement of the electric poles / users is too complicated and visibility is not good, a three-dimensional display as shown in FIG.
The arrangement relationship of each utility pole / user is displayed three-dimensionally, and the visibility may be improved.

In the two-dimensional display, even when two or more individual utility pole areas are greatly overlapped, the three-dimensional display makes it possible to display these individual utility pole areas separately.

In the three-dimensional display, a specific Z-axis is assigned to each telephone pole indicated by two-dimensional data (X-axis / Y-axis data).
It becomes possible by adding axis data. As an example of a method of determining each Z-axis data, the distance between adjacent telephone poles is the size of a circular (or rectangular) display area (for example, 30 m).
When the distance is smaller, Z-axis data corresponding to the display area size is added to one of two adjacent utility poles.

An algorithm for drawing a three-dimensional figure on a display from XYZ three-axis coordinate data is a known algorithm.
What is adopted in D modeling / rendering software may be used.

The RT wiring area refers to an area where users (subscribers) can be covered by one RT. However, since the users are scattered everywhere, this area can be easily understood. Was difficult in the past. According to the present invention, it is possible to narrow down the display to users covered by a specific RT group, so that it is possible to simply represent an RT wiring area with good visibility.

Further, in a map including a plurality of RT installation poles, the RT wiring area is displayed by a simple identification method (such as a different color mark), so that the RT service area at that time can be determined at a glance. In addition, since the identification process itself such as a color mark is simplified, the display processing speed is also increased.

In addition, the "suspension line" shown in FIG. 1 to FIG. 6 or FIG. 11 assumes an optical fiber between utility poles and a metal wiring from the utility pole to the user. The actual implementation means is not limited to optical fibers or metal wiring. This suspension line may be partially realized by wireless communication means (such as satellite communication).

[0059]

According to the present invention, since the display of the RT wiring area is simple, the display processing speed is high (real-time processing is possible). In addition, since the display of the RT wiring area is displayed in an easy-to-understand manner by color coding or the like, the area can be checked at a glance. Therefore, the operator can perform a visual operation at the time of operation.

[Brief description of the drawings]

FIG. 1 is a view for explaining a simple display method of an RT wiring area according to an embodiment of the present invention, in which a telephone pole and a suspension line are two-dimensionally displayed on a map.

FIG. 2 is a diagram exemplifying installation locations of a user and an RT on the screen of FIG. 1;

FIG. 3 is a diagram in which a wiring area for each RT is identified by a rectangular area of a specific size (displayed in different colors) on the screen of FIG. 2;

FIG. 4 is a diagram in which a wiring area for each RT is identified by a circular area of a specific size (displayed in different colors) on the screen of FIG. 2;

FIG. 5 is a diagram in which wiring areas for respective RTs are identified and displayed in various forms on the screen of FIG. 2;

FIG. 6 shows a wiring area for each RT in various shapes and various colors (or fill patterns) on the screen of FIG.
FIG. 11 is a diagram identified and displayed in an area expressed by a combination with the following.

FIG. 7 is a view for explaining an outline of a hardware configuration for performing a simple display of the RT wiring area exemplified in FIGS. 1 to 6;

FIG. 8 is a view for explaining information (an ID list indicating a relationship between each telephone pole and a suspended line connected thereto) which is referred to when performing a simple display of the RT wiring area exemplified in FIGS. 1 to 6;

FIG. 9 is a view for explaining information (an ID list indicating a relationship between each of the suspension lines and the upper and lower power poles thereof) which is referred to when performing a simple display of the RT wiring area exemplified in FIGS. 1 to 6;

FIG. 10 is a flowchart illustrating an example of software executed in each workstation illustrated in FIG. 7;

FIG. 11 is a modification of FIG. 4 in which the RT wiring area is 3
The figure which illustrates the case where it displayed dimensionally.

[Description of Signs] 10: Host computer; 12: Master database; 20: Network cable; 22A, 22B: Network node; 30A, 30B: Workstation or personal computer (Wiring area simulator for performing RT wiring area simple display); 32A, 3
2B: Local database.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Chen Tao 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Inside Furukawa Electric Co., Ltd. (72) Masakazu Higashimoto 2-6-1 Marunouchi, Chiyoda-ku, Tokyo No. 1 Inside Furukawa Electric Co., Ltd. No. 2 Nippon Telegraph and Telephone Corporation

Claims (11)

[Claims] 1. Extracting predetermined map information and wiring information; extracting wiring node information and inter-node wiring information from the wiring information; wiring nodes and the nodes based on the node information on a map based on the map information. Displaying the wiring based on the inter-wiring information; identifying the displayed wiring nodes equipped with a predetermined terminal device; and identifying one or more of the identified terminal equipment nodes connected to this terminal equipment node. And displaying a specific range around said wiring node in a visually different manner for each of the terminal equipment nodes identified and displayed. 2. Extracting predetermined map information and wiring information from a database; extracting wiring node information and inter-node wiring information from the wiring information; wiring nodes based on the node information on a map based on the map information. And displaying wiring based on the inter-node wiring information; identifying and displaying the displayed wiring nodes equipped with a predetermined terminal device, and displaying a user near the displayed wiring node on the map. Displaying, for each identified terminal equipment node, a specific area around one or more of said wiring nodes connected to said terminal equipment node in a visually different manner for each identified terminal equipment node; A simple display method of a wiring area. 3. Extracting predetermined map information and wiring information; extracting wiring node information and inter-node wiring information from the wiring information; placing a wiring node based on the node information on the map based on the map information; Displaying wiring based on the inter-node wiring information; identifying and displaying the displayed wiring nodes equipped with a predetermined terminal device; connecting each of the identified and displayed terminal equipment nodes to this terminal equipment node; A simple display method of a wiring area, wherein a specific range around the wiring node is displayed in a different color for each terminal equipment node identified and displayed. 4. Extracting predetermined map information and wiring information; extracting wiring node information and inter-node wiring information from the wiring information; placing a wiring node based on the node information on the map based on the map information; Displaying wiring based on the inter-node wiring information; identifying and displaying the displayed wiring nodes equipped with a predetermined terminal device; connecting each of the identified and displayed terminal equipment nodes to this terminal equipment node; A simple display method of a wiring area, wherein the specific range around the wiring node is displayed in a different filling pattern for each terminal equipment node identified and displayed. 5. Extracting predetermined map information and wiring information; extracting wiring node information and inter-node wiring information from the wiring information; placing a wiring node based on the node information on the map based on the map information; Displaying wiring based on the inter-node wiring information; identifying and displaying the displayed wiring nodes equipped with a predetermined terminal device; connecting each of the identified and displayed terminal equipment nodes to this terminal equipment node; A simple display method of a wiring area, wherein the specific range around the wiring node is displayed in a different form for each terminal equipment node identified and displayed. 6. Extracting predetermined map information and wiring information; extracting wiring node information and inter-node wiring information from the wiring information; placing a wiring node and the wiring node based on the node information on a map based on the map information. Displaying wiring based on the inter-node wiring information; identifying and displaying the displayed wiring nodes equipped with a predetermined terminal device; connecting each of the identified and displayed terminal equipment nodes to this terminal equipment node; A simple display method of a wiring area, wherein a specific range around the wiring node is displayed in a different color, a different filling pattern, or a different form for each terminal equipment node identified and displayed. 7. Extracting predetermined map information and wiring information; extracting wiring node information and inter-node wiring information from the wiring information; and displaying a wiring node based on the node information and a wiring node based on the map on the map based on the map information. Displaying wiring based on the inter-node wiring information; identifying and displaying the displayed wiring nodes equipped with a predetermined terminal device; connecting each of the identified and displayed terminal equipment nodes to this terminal equipment node; A simple display method of a wiring area, wherein a specific range around the wiring node is blinked and displayed at a predetermined rhythm different for each terminal equipment node identified and displayed. 8. The terminal device installed at the wiring node owns upstream wiring information from the upstream to the wiring node and downstream wiring information from the wiring node to the downstream. The wiring information includes upstream wiring node information of the wiring indicated by this information, and downstream wiring node information of the wiring indicated by this information, wherein the upstream wiring information, the downstream wiring information, and the upstream wiring One or more of the wirings connected to the terminal equipment node by following a relationship between a specific wiring node and its upstream suspension line or downstream suspension line based on node information and any information of the downstream wiring node information. 8. The wiring area according to claim 1, wherein a specific area around the node is visually displayed in the same manner. Display method. 9. The simple display method of a wiring area according to claim 1, wherein the simplified display of the wiring area is displayed two-dimensionally. 10. The simple display method of a wiring area according to claim 1, wherein the simplified display of the wiring area is displayed three-dimensionally. 11. A database for storing predetermined map information and wiring information; means for extracting wiring node information and inter-node wiring information from the wiring information extracted from the database; and a map information extracted from the database. Means for displaying a wiring node based on the node information and a wiring based on the inter-node wiring information on a map based thereon, and identifying and displaying a wiring node provided with a predetermined terminal device among the displayed wiring nodes; For each of the identified terminal equipment nodes, a specific area around one or more of the wiring nodes connected to the terminal equipment node is displayed in a visually different manner for each of the identified terminal equipment nodes. Means; and a simplified display device for a wiring area.