JP3306246B2 - Network cost calculation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for calculating a cost required for constructing a network using a computer system for designing a communication network, and particularly to a high-accuracy, large-scale design operation that can greatly reduce design operation. Calculation that can unified and efficiently calculate the cost of a simple network
About technology .

[0002]

2. Description of the Related Art Conventionally, in a computer system for designing a network, as a method of calculating the cost of the network, a method of obtaining an approximate price using a single money (cost per line or path) and a design for accommodating equipment are used. The method can be classified into a method of calculating costs by performing manually. Hereinafter, these calculation methods will be described. (1) Method Using Single Money FIG. 37 is a flowchart showing a calculation procedure of a cost calculation method using single money. When using simple money, first, a network having a standard equipment configuration is set to determine the simple money (step 501), and then standard traffic, paths, and the like are set.
The line capacity is set (steps 502 and 503), and then the equipment capacity is set (step 504). Next, using the traffic, the path accommodation ratio, and the equipment accommodation ratio, the type and quantity (number of lines, number of paths, number of exchanges, etc.) of the equipment required to configure the network are obtained (step 50).
5) While calculating the equipment cost (step 50)
6) The system and the number of path lines are calculated (step 50).
7) The cost (single money) per line (or per path) is obtained from the network cost / total number of lines / or the network cost / total number of paths / (step 508). Then, the cost of the real network is calculated by calculating the total number of lines or the total number of paths from the AC matrix between the exchanges of the target network (step 50).
9) The network cost is calculated by multiplying the calculated result by the above-described simple money (step 510). (2) Method of obtaining by designing accommodation of equipment This is to calculate the type and number of necessary equipment manually, calculate the total number of necessary lines from the exchange matrix between exchanges of the target network, and based on this value. This is a method of calculating costs. However, since the type and number of facilities are determined manually, it cannot be applied to a large-scale network.

[0003]

As described above, in the conventional calculation method using (1) simple money, since simple money is an approximate expression, it is not possible to obtain an accurate cost. The problem is that high accuracy cannot be expected because the calculation accuracy depends on simple money, and furthermore, it is not possible to judge the accuracy of the calculated result because the type and number of specific equipment required for the network are not known. There is. Further, in the method of (2) designing the accommodation of the equipment and calculating the cost, in order to apply the designed path to a necessary device and to design the accommodation,
Equipment skills are required.
There is a problem that the accommodation design cannot be made by a skilled person, and furthermore, many paths are handled in the actual net, but the operation rate is very large because the design system is manually input directly. . Therefore, in the case of calculating the cost of a nationwide network, the cost is divided and the divided networks are individually designed. as a result,
It was not possible to calculate the cost for constructing a network in which the entire network was centrally designed. As described above, (1) when using simple money, it is not possible to calculate an accurate cost, and (2) when designing equipment, skills and operation are required. There was a problem that it was not possible. An object of the present invention is to solve these conventional problems, achieve high accuracy, do not require skills for cost calculation, greatly reduce the number of data input operations to a design system, and as a result, as in a real network It is an object of the present invention to provide a network cost calculation technique capable of efficiently and integrally calculating a cost for constructing a large-scale network.

[0004]

Means for Solving the Problems] To achieve the above object, the present invention, in order to design a network for carrying telephone calls and the like by using a computer system, based on the distribution of the communication terminal and traffic flows placement and exchange number of switching centers and transmission lines Te, Oite the output cost calculation of network design system for determining the number of transmission lines, transmission method, transmission facilities, media equipment, the definition data of the switching equipment, the path to each other in the path multiplexing steps A path-path information table, which is a set of path pairs indicating the inclusive relationship of the system, a system-path information table, which is a set of system-path pairs indicating the inclusive relationship between the path and the system, and a set of line-path pairs, which indicates the inclusive relationship between the line and the path Line-path information table, path information table showing information unique to each path, system showing information unique to each system A line information table, a line group information table showing information unique to each line group, the path information table or the system path information table or the line-path information table, and the path information table, the system information table, and the line group information. Based on the table, the path pair, the system path pair, and the line-path pair displayed in the path-path information table, the system-path information table, and the line-path information table are accommodated by the path pair or the higher-order group side of the system-path pair or the line-path pair. Automatically create building-by-building counters for inter-office paths extracted for each building name for all buildings. Path to be accommodated in the intra-office path from the system-path pair and the line-path pair , System-path pairs and line-path pairs are extracted, and the building-specific counters of the intra-office paths that automatically display the intra-office paths for connecting the intra-office devices with the same source building name and destination building name are automatically created. For each path pair, system path pair, line-path pair in the inter-office and intra-office path-by-building counters, the higher-order group is cut off to return the path multiplexed to the higher-order group to the lower-order group path, or "Fall", which ends in a building to connect to an exchange, "Connect" attribute, which switches to a different path in a certain building, transmission method, SDH / PDH
A device name is searched from the transmission facility definition data in consideration of the analog / analog division, the exchange interface, and the like, and a device necessary for accommodating the system, path, and line accommodated in the building-specific counter is specified. Perform mapping, register in the building-specific counter, and, for the device registered in the building-specific counter data, implement on a real device based on the device configuration information in the transmission facility definition data, and perform necessary device It is characterized in that the number is calculated, the number of devices is totaled, and the cost required for building a network is calculated.

[0005]

In the present invention, transmission method definition data, transmission equipment definition data, medium equipment definition data, switching equipment definition data, pass-path information table, system-path information table, line-path information table, path information table, system information table, line Using each database of the group information table, supporting PDH, SDH, analog hierarchy, automatically creating a counter for each building, judging “contact” and “falling”, specific from the pass-pass information table Determining the device name, if the information in the pass-path information table cannot be mapped by one device, divide it into multiple devices and map it. For the paths and lines accommodated in the exchange, determine the IF speed of the exchange. The transmission IF is automatically converted to the exchange IF, Allocate the relevant equipment until it is connected to the equipment, calculate the equipment to accommodate the backup transmission system and cables, calculate the required number of cables for each section from the selected transmission method, -2) Calculate the number of equipment according to the number of paths from the configuration of the installed equipment.-3) Calculate the cost by stacking IF boards, units and racks.-4) Aggregate the number of equipment and build a network. Calculate the cost required to construct a complex and large-scale network such as a real network by performing the respective processes of calculating the cost required for the real network. As described above, the network cost can be calculated by calculating the specific equipment name and the number of equipment required for the network, and as a result, the cost can be calculated with high accuracy. Also, since no equipment design skills are required, costs can be easily calculated. Further, since the equipment can be automatically calculated, there is no data input operation at the time of equipment design, and the network cost calculation time can be greatly reduced.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram of a network design system to which the present invention is applied. In FIG. 1, a block directly related to the present invention is a cost calculator 16. This network design system includes a traffic creation unit 11 for creating a traffic matrix between units from an in-house system, a dedicated line input unit 13 for inputting demand for a dedicated line to the system, and a network design unit 14 for calculating the number of lines from a traffic network. A path network design unit 15 for allocating the number of paths from a circuit network design result, a facility data setting unit 19 for storing data required for performing the design, a cost calculation unit 16 for calculating the cost of the designed network, Network evaluation unit 17 for evaluating reliability, network cost, etc., and lines existing in the existing network,
Existing network analysis unit 12 that takes in information such as paths into this system
Consists of 18 is a database (DB)
It is.

FIGS. 2 and 3 are detailed functional configuration diagrams of the cost calculating section in FIG. In the figure, M1, M
Reference numerals 2 and M3 denote an equipment data setting unit 19, a line network design unit 14, and a path network design unit 15, respectively.
3, B1, and C1 to C8 are databases created by each of M1, M2, and M3. P1 to P8 are functional blocks for executing the processing of the cost calculation unit 16,
D1 to D15 are databases created by the cost calculation unit 16. Hereinafter, the processing flow of the cost calculation unit 16 will be described. In P1, communication equipment (definition of transmission system, transmission equipment and equipment) used for network design is selected from A1 and registered in D1, and C1, C4, C5 and D
1 to determine the transmission method, and register the result in D2.
Next, a spare transmission system is created from the spare ratio of D1 and D2, and the created data is registered in D3. Note that D1 is the definition data of the transmission method and device used for each section and building. D2 is a table in which data obtained by adding information of the transmission method and the type of medium to C5 and a path which has an inclusive relation with the system of C5 are displayed in the same data format as C1. The data format of D3 is the same as D2,
And data of the same type as C4 and C5.

In P2, C2, C3, C6, C
With the input of 7, D2, a building-specific counter is created, and D4 to D9 are registered as building-specific counters of the interoffice path for each building. Further, based on the building-specific counter of the inter-office path, D4 to D9 are registered as building-specific counters of the intra-office path for each building as building-specific counters of the intra-office path. Note that D
7 is the same data format as D2, and D4 to D6, D
8 and D9 have the same data format as C1, C2, C3, C6 and C7, respectively. At P3, if the data connected to the exchange in the building-specific counters D4 to D9 is different from the exchange interface speed of A3, the building-specific counter is converted and registered as D10. The data format of D10 is the same data format as D4 to D9. In P4, the devices are mapped by searching for devices satisfying the condition of the building-specific counter of D10 from the candidate-defined equipment definition data of D1, and device information such as device type and interface information is mapped as a mapping result. Store it in D11. The data format of D11 is the same as D10 except that device information such as device type and interface information is added to D10.

In P5, the data of D11 is mounted on each existing device based on the device configuration information in D1, and is used as a frame. The bridged data is stored in D12 as a device accommodation table. D12 indicates a configuration for accommodating one unit of each device. In P6, D1 and D12 are obtained from the working / spare ratio of the equipment in the equipment definition data D1 in which the equipment of D12 is described.
The spare interface type and number of the second device are calculated. The calculation result is stored in D13. Note that D13
Is a data format obtained by adding information on spare equipment to D12. In P7, the required number of cores for each section is calculated from D2 and A2, and a medium satisfying the required number of cores is searched from D2,
Map. The mapping result is stored in D14. D14 indicates the required number of each medium for each section. At P8, the switching equipment cost is calculated from A3 and B1, the transmission equipment cost is calculated from D1 and D13, and the line cost is calculated from A2, C8, and D14. In addition, the basic cost is input and calculated in this step. All cost calculation results are D
15 is stored.

Hereinafter, further according to the processing of FIGS. 2 and 3,
4 and subsequent figures will be described. 4 to 7 show the data structure in the M1 "equipment data setting unit" in FIGS. 2 and 3, and FIG. 4 shows the data structure of the transmission method definition data constructed by the equipment data setting unit. FIG. Here, the data of the transmission method used when designing the network is input. This data is used to select a transmission method candidate,
Used for device mapping and media facility mapping. FIG. 5 is a diagram illustrating a data structure of the transmission equipment definition data constructed by the equipment data setting unit. Here, equipment data used when designing a network is input. In this figure, the XC device is an abbreviation of a cross-connect device, the XC sub-group is a sub-group in which lines and paths are rearranged by the cross-connect device, and the IF is an abbreviation of interface. In the inside / outside division, the inside of the IF indicates a path and the outside indicates a system. FIG. 6 is a diagram illustrating a data structure of the media facility definition data constructed by the facility data setting unit. This data is
Used for media equipment mapping and costing.

FIG. 7 is a diagram showing the data structure of the exchange equipment definition data constructed by the equipment data setting section. This data is used for conversion from the transmission interface to the switching interface and for calculating the switching cost. FIG. 8 is a configuration diagram of a path network designed by the network design system. The equipment is determined and assigned to this path network. FIG. 8 shows a path network between three buildings.
The 6M transmission systems # 1 and # 2 are created between buildings A and B and between buildings B and C, respectively. # 100,20
The path 0,300 indicates that the building B is not connected to the exchange but is connected between A and C. At this time, switching from a pass accommodated between A and B to a different pass in Building B, such as pass # 100, 200, 300, is called "contact".
Call it "falling". This "fall" occurs in the following two cases. That is, one is when the higher order group is broken due to the lower order group path, and the other is when it is finished in the building to connect to the switch. One pass is always “falling” at both ends of the building, and is always “close” at the building on the way.

FIGS. 9 and 10 are diagrams showing the data structure of the path network of FIG. 8, respectively. IDs are assigned to the designed paths, respectively, and these IDs are managed in a path information table. The accommodation relation between the higher-order group path and the lower-order group path included therein is shown in the form of a pass-path information table shown in FIG. In the system path information table of FIG. 10, the high-order group paths # 10 and # 20 are included in the system # 1, and the system # 3 is # 3 in the system # 2.
Higher-order group paths 0 and # 40 are included. In the pass-path information table, the paths # 100 and # 200 exist in # 10, and the paths # 300 and # 400 exist in # 20. Although the line-path information table and the line group information table do not exist in the table of FIG. 9, the data format is the same as the pass-path information table and the system-path information table as shown in FIG. Note that # (number) indicates the ID of the system (path, line group).
In the pass-pass information table, the relationship between the higher-order group and the lower-order group is unique, and different higher-order groups do not include different next-groups in a single higher-order group path.
M and 1.5M are not mixedly included.

FIG. 11 is a detailed operation explanatory diagram of the PI processing (selection of transmission system and selection of transmission equipment) method in FIGS. 2 and 3. A plurality of transmission method candidates to be used in mapping of equipment and medium are selected from the transmission method definition data A1-1 as candidates. At this time, in order to create a spare system described later, the ratio of the spare system is input with reference to D1-1 (step S1). Next, the transmission method is determined by associating the transmission method candidate selected from the transmission method definition data of D1-1 with the system information table C5 of the corresponding section based on the next group. At this time, the transmission method information is registered in the system information table of D2 (step S2). Next, a standby system is created from D1-1 and D2 by using the input of the standby ratio input at the time of candidate selection and the system for which the transmission method has been determined (step S3).
A plurality of transmission equipment candidates used in the equipment mapping are selected from the transmission equipment definition data A1-2 as candidates (step S4). Then, the candidate is registered in the transmission device definition data D1-2.

FIGS. 12 to 18 are diagrams for explaining the processing of FIG. 11 in detail. 12 and 13
FIG. 12 is a diagram showing an example of a transmission method determination procedure of the transmission system closed in one section in step S2 processing in FIG. The transmission method can be selected for each layer (= all areas of the layer), each area (= a group of several sections), and each section. However, a method with the same next group speed cannot be selected at the same time. Hierarchy, area, and section have the following inclusive relations. Therefore, when the upper side is selected, all the lower sides included therein are selected. For example, the designation of a hierarchy is equivalent to the designation of all areas of the hierarchy. (Upper side) hierarchy>area> section (lower side) In FIG. 13, section z is specified in area 2 specified later.
The condition of (> section Z) is preferentially applied. That is,
The designation order 1 designates designation D, that is, the outermost portion surrounded by the broken line in FIG. 12, and the designation order 2 designates designation A, that is, FIG.
Are designated, the designation order 3 designates the designation B, that is, the section z, and the designation order 4 designates the designation C, that is, the area 2.

FIGS. 14 and 15 show S in FIG.
It is a figure which shows the example of the transmission system determination procedure of the system which straddles a several area among two processes (transmission system determination). The transmission system is determined for transmission systems that are included in even one section in the range specified by the candidate selection. In addition, when the same rank, area, or section is designated in one system, the condition specified later has the higher priority. For a section straddling another area in a different hierarchy, the specified condition in the upper hierarchy is valid. That is, when the transmission system is in one layer, as shown in FIG. 14, the condition 2 later becomes effective for the system AB. Also, if the transmission system is 2
When straddling more than one hierarchy, the hierarchy 1
Condition 3 when> Layer 2> Layer 3 (lower side)
Is overwritten by specifying the condition 1 of the higher hierarchy, and the condition 2 is invalid because the condition of the higher hierarchy is specified. Therefore, condition 1 is valid for systems AB.

FIG. 16 is a processing flowchart of the system-path information table after the transmission system is determined from the transmission system candidates in the S2 processing (transmission method determination) in FIG. Once the transmission system is determined,
System I of the system information table of FIGS. 9 and 10
Information on the transmission method to be used, the applicable medium, and the ratio of working / spare is added to D. The system path information table has a system information table to which a transmission method and the like are added. In FIG. 16, the system ID and the path ID
Are stored in the system information table and the path information table, respectively, but are conceptually described in the system path information table. By referring to the transmission method definition data for which the candidate has been selected, matching is performed in the next group, and when there is more than one, the one that matches first is adopted. When the system straddles two hierarchies, the upper layer candidate selection condition is adopted. As a result, the ratio of the “transmission method” of the transmission system to the “applied medium” current / predetermined by matching with the transmission method definition data. In the case of analog, there is no concept of “next group”, but in data processing, a character string indicating analog is displayed in the “next group” column of the system information table, and the “next group” column of the transmission method definition data is also displayed. Since the same character string is set, the same processing as SDH and PDH may be performed.

FIGS. 17 and 18 show S in FIG.
It is a figure showing the example of preparation of the backup transmission system created by three processings (preparation system creation). When the transmission system is determined, a spare system is created based on the working / spare ratio assigned to the system ID. After determining the system of each system, the system is classified by transmission system, and the number of systems for each system is obtained. From the current system ratio S = m: n, the number of spare systems Y by system is given by the following equation.
Ask for. Y = {(S-1) / m + 1} * n (division is rounded down) (1) FIG. 17 shows an example in which there is a system with different transit buildings between building A and building B. It is shown. Generally, Building A
A plurality of systems are set between and building B. The set transit sections of the system are not always the same.
The standby system is set to a route having the same transmission method and the least number of sections among the active systems having the same building at both ends from the system information table. In the case of FIG.
The 150M spare system has the same route as the working system, but the F2.4G spare system has a route A → W → B. In other words, the systems S1 and S3 are connected via the building AXYB.
(The number of sections is 3), and the system S2 is a transit building AP-
QRB (section number 4), and the system S4 is a transit building AWB (section number 2). Unless the transmission schemes of all the active systems having the same building at both ends are determined, the route of the standby system cannot be determined. As for the spare system, a system-path information table and a section-system information table “for the spare system” are created in processing.

Next, the S4 processing (selection of a transmission device candidate) method in FIG. 11 will be described. A plurality of equipment device candidates to be used in the equipment mapping are selected from the transmission equipment data. Selection can be specified by hierarchy, area, or building. Devices not selected are not mapped. However, devices with the following conditions cannot be selected as candidates at the same time.
(If the hierarchy, area, and building are different, they can be selected at the same time.) ・ IF1 speed, applicable medium, inside / outside division ・ IF2 speed, applicable medium, inside / outside division ・ XC subgroups are all equal. Hierarchy, area, building inclusion relationship and specified order is "section"
Is replaced with "building", the selection and handling of transmission method candidates are the same. However, overlapping affiliations do not occur for buildings. 19, 20, and 21 show the P2 processing of FIGS. 2 and 3 (creation of a building-specific counter for an inter-station path).
FIG. 4 is a flowchart, a table and an example of a sorting process. The building-specific counters are based on the transmission method, applicable medium,
It is created based on the system-path and path-path and line-path information tables to which the spare ratio is added. FIG.
, The path pairs displayed in the pass-path information table are extracted and registered for each building name in which the higher-order group path of the path pairs is accommodated. The system-path information table and the line-path information table are similarly extracted and registered (steps 101 and 102). The path accommodation table for each building created in this way is called a building-specific counter.
All pass-pass information tables are similarly registered in the building-specific counters of each building (step 103). Next, the building-by-building counters are arranged in descending order (from the higher order group to the lower order group side) with respect to the higher order side speed and the lower order speed (step 104). Thus, the counter creation ends (step 105).

FIG. 22 is a diagram of a building-by-building counter of the building B created based on the path information shown in FIGS. Since all the higher-order group-side paths in the pass-path information table are “falling”, the result of the building B is the same as that in FIGS. 8 to 10.
Here, # indicates the ID of the system (path, line group). FIG. 23 classifies the building-specific counters.
The building-specific counters are classified into the following cases according to the combination of the form of the building-specific counters on the low-order group side and whether the next group exists in the XC next-group column of the equipment definition data. Case 1: The lower-order group side is all “contact” and exists in the XC next-group column of the equipment definition data (Step 201, Step 202, Step 203). Case 2: The lower-order group side is all “Fall” and the equipment is What exists in the XC next group column of the definition data (step 211, step 212, step 213). Case 3: The low order group side includes both "contact" and "falling" and the XC next group column of the equipment definition data. Existing (Step 221, Step 222, Step 223), Case 4: Low-order group does not exist in the XC next-group column of the equipment definition data (Step 230).

The P2 process shown in FIGS. 2 and 3 (creating a building-specific counter for an intra-office path) will be described. This processing enables mapping of necessary devices in the station. An intra-office path is created in the following two cases. (I) In case 2 of FIG. 23, this is when the designer determines that “all the fallen paths are accommodated in the XC device”.
In this case, the building-specific counters of all the dropped paths are created (the creation method is the same as that of the inter-office path). (Ii) The “falling path” in case 3 of FIG.
In this case, a building-specific counter is created only for all the failed paths. FIG. 24 is a diagram showing the concept of an intra-office path.
FIG. 6 is a flowchart in the case of determining the next group of counters per building of the intra-office path. The next group is determined by the path network design unit for the intra-office path, but since the next group is not determined for the intra-office path, the next group is determined here.

The path P2 is the case 2 because all of the paths are down. At this time, whether or not to map the XC device is determined by the designer on an HMI (Human Machine Interface, that is, a screen). Here, a case is shown in which the HMI instructs the designer to set the XC device. The lower-order group side of the intra-office path is not always connected to the exchange, and may go to another (lower-order group) intra-office path via a device. In FIG. 24, a of the inter-office path (P1) 31 goes from the XC device 33 to the inter-office path (P3) 34 via g, and b from the XC device 33 via the intra-office path (P5) 35. The switch 37 is connected to the switch 37 via an intra-office path (P5) 36. Further, d of the inter-station path (P2) 32 is the XC device 3
3 to the exchange 38 via the intra-office path 36, e and f are X
The C device 33 is connected to the exchange 37 via the intra-office path 35. In FIG. 25, when creating a building-specific counter for the intra-office path, the next group speed of the higher-order group side path is created by the procedure of steps 1 to 3. It should be noted that there are a plurality of exchange IF speeds and a plurality of extracted device IF speeds. If there are a plurality of equal sets, the higher one of the next group is adopted. Further, the accommodation next group is determined from the next group picked up in step 2. In this way, different values are assigned to the path IDs of the higher order group for each exchange. The exchange can be known from the lowest-order group line-path information table included.

The P3 processing (conversion to the exchange IF) in FIGS. 2 and 3 will be described. If the path hierarchy used in the path network design and the IF of the exchange are different, the building-specific counter is corrected so that the device can be determined from the building-specific counter. For the following conditions 1 to 3, the next group is to convert the building-specific counter to the IF conversion speed (for each of the transmission IF speed and the exchange IF speed) at any of the following conditions. The transmission IF speed, the exchange IF speed, and the line group unit are required.
The counter is corrected to speed. ). Condition 1: The low-order group side of the building-specific counter is the same order group as the transmission IF of the IF conversion speed. Condition 2: The exchange IF capacity (defined by the exchange data in the equipment definition data) is the exchange IF of the IF conversion speed.
And the same subgroup. Condition 3: A building-specific counter of a combination of a line group and a path, and the higher-order group side of the building-specific counter is equal to the switching IF speed. Switch side (lower order group side) of building-specific counters on intra-office paths
And the conditions 1 and 2 are “true”. Conditions 1 and 2 are "true" without XC equipment installed in case 2
And the condition 3 is “false”. In case 4, conditions 1 and 2 are “true” and condition 3 is “false”.

FIG. 26 is a diagram showing an example of IF conversion. G0 = n0 (HG) before conversion, and a plurality of IF speeds after conversion, G1 = n1 (HG) G2 = n2 (HG), where the exchange IF is the highest among G1, G2,. Assuming that the next group is Gm, G0 is converted to Gm (for example, if the exchange IF is both 2M and 8M,
The highest subgroup is 8M). If the number of IFs of G0 is N0, G
Assuming that the number of HGs in m is nm, the number of IFs Nm is Nm = (N0 * n0-1) / nm + 1 (2). The building-specific counter in the line-path information table format of FIG. 26 converts line-1.5M into line-2M,
For the pass-by-building counter in the pass-pass information table format, 5
2M-1.5M is converted to 52M-2M. In this way, the number of IFs on the corresponding next group is changed in accordance with the conversion condition specified by the HMI. In the HMI, the number of HGs in the next group before conversion and the number of HGs after conversion are specified. As an example,
1.5M = 4 (HG), 2M = 5 (HG), 8M = 20
(HG).

FIGS. 27 to 30 are diagrams relating to the P4 processing (mapping of the inter-office path by the counter for each building) in FIGS. 2 and 3, and FIG. 27 shows a list of mapping methods for cases 1 to 4. FIGS. 28, 29 are flowcharts showing a method of matching the building-specific counter with the transmission equipment definition data, and FIG. 30 is a flowchart for FIG. In FIG. 27, in the building-specific counter created from the system path information table, the search key is IF = G
1 (inside / outside = outside), medium = “applied medium”. The applicable medium has been determined by determining the system method.
In the building-by-building counter of the intra-office path, the building-by-building counter of the inter-office path for which the apparatus has been searched saves the information at that time, so that the waste of processing can be reduced and it is not necessary to search again here. 28 and 29, the equipment definition data is searched in step 303, and when a plurality of equipment definition data exist, the one found first is adopted. As a result of the search, if it is not found, there may still be other items. Therefore, in step 310, a building-specific counter in the system path information table is searched, and in steps 311 and 312, equipment definition data is searched. If found (foun
In d), the process returns to step 304. In step 306, for the determined device, the current /
The preliminary ratio is checked, and if there is no spare, it is registered in the accommodation table (step 307), and if there is a spare, it is not registered in the accommodation table (step 308). The accommodation table of IF is shown in FIG.
Is shown below. FIG. 30 shows a flow in which the processing cases for each building and for each counter in FIG. 27 are arranged. In the P4 processing of FIGS. 2 and 3, “mapping of intra-office path by building-specific counter” corresponds to the building-specific counter for which the next group of the higher-order group side path has been determined in the “intra-office path next-group determination processing” of FIG. On the other hand, the following processing is required. Map the device to the XC side. Map the device to the exchange. Alternatively, the path is directly connected to the exchange without preparing a device. FIG. 31 is a flowchart showing a mapping method of an intra-office path using a building-specific counter. Here, the higher order group is G1 and the lower order group is G2. * For the paths included in the path marked with a note, the device is not mapped by the subsequent counter.

In the P5 process (accommodation of the mapping facility) in FIGS. 2 and 3, the building-specific counters whose facilities have been identified up to the P4 process are mounted in the accommodation table of each device based on the accommodation configuration data of the device. . FIG. 32 and FIG. 33 are diagrams illustrating the accommodation method for each device. FIG. 32 shows the accommodation of the mapping equipment. When the system terminating device, the multiplexing device, and the XC device are mapped, the result is stored in the accommodation table. Here, the storage procedure in the accommodation table is defined. That is, assuming that the device A is mapped when the high-order group path P1 has the relationship of the low-order group paths 1 to m1 and the high-order group path P2 has the relationship of the low-order group paths 1 to m2 as shown in FIG.
The accommodation table is as shown in FIG. In FIG. 33, block 1
~ Block k. When the accommodation rate of the low-order group path included in the high-order group path is not 100%, an unregistered entry is created. For example, if the path P1 of the speed G1 and the low-order group pass, and the speed G2 is a high-order group * 1 (books) = low-order group * L (books) from the path hierarchy relationship, L ≧ mi... (3) An equal sign is established when the accommodation rate is 100%.

The procedure for accommodation is shown below. Register sequentially from the top of the containment table. The number of registered entries is counted for each high-order group path ID. These are set to m1 to mk (k is the number of higher-order group side blocks). Higher order groups may accommodate different speeds in the same device. The number of IF1 and the number of IF2 are obtained as follows. <Number of IF1> When k blocks are classified according to the next group speed, the number of IFs at the next group speed s is expressed by the following equation. Number of IF1 = (number of blocks of next group speed s−1) / number of accommodated IF1 + 1 (IF1 accommodates one or more paths for each next group speed) (4) <number of IF2> IF2 number = (mi-1) / IF2 accommodation number + 1 (i = 1, k) (IF2 is set for each block) (5) IF1, IF2 Is the value in the facility definition data for the mapped IF.

If the value of the device configuration of the device definition data of the device A is as follows, Nj = unit / frame (number of units accommodated in one unit) Ij = IF1 / unit (accommodated in one unit) IF
(1 number) The required unit number j is represented by the following equation. j = (number of IF1 j-1) / Ij + 1 (however, division is rounded down) (j = 1, t) t is the type of the next group speed s ... (6) Calculation of required number of frames Necessary number = (total number of units−1) / Nj + 1 (7) Nj may be either j = 1 or t (an equal value is set).

Next, the P6 processing (installation of spare equipment) shown in FIGS. 2 and 3 is performed. After the building-specific counters are stored in the equipment accommodation table, the spare equipment is installed (registered) for each equipment accommodation table. The spare equipment is registered when mapping a device in which the active / spare ratio of IF1 and IF2 of the transmission equipment definition data is set to a value other than zero, and performs the following processing. For each unit (frame) of each device, the number of IF1 in the unit (frame) is A, and the number of IF2 in the unit (frame) is B
Assuming that the IF1 working / spare ratio is m1: n1 and the IF2 working / spare ratio is m2: n2, the IF1 spare number = {(A-1) / m1 + 1} * n1 (8) Since the spare number of IF2 = {(B-1) / m2 + 1} * n2 (9), the spare numbers of IF1 and IF2 are added to the unit (frame). The unit in which the spare is installed is a unit or a frame, and the transmission equipment definition data “I
F1 preliminary installation unit ". System IF
If the system IF (mapped in the system path information table) and the path IF (mapped in the path-path information table) are present in the working IF, a spare system is also prepared separately for the system IF and the path IF. In this case, do as follows. System IF1 spare number ≦ working IF1 number (10) (The spare number prepared as a system spare IF is
The total number of spares in the unit (frame) is determined from the working / spare ratio, and only the number of working system IFs is determined as the number of spare system IFs. If the total number of spares is equal to or less than the number of active systems, all spares are system IFs, and the number of spare path IFs is zero.

FIGS. 34 and 35 are illustrations of the P7 processing (transmission medium mapping) in FIGS. 2 and 3. FIG. The medium mapping is performed for each section. From the data used when determining the transmission method, the required number of cores for each method in each section is calculated. Based on this, it is matched with the media equipment definition data to calculate the number of cables. The section-based system tallying method in FIG. 35 is as follows. Section: Section to be processed Method: Transmission method name Number of systems: Section of the section-number of system information tables, Applicable medium: As the applicable medium of the adopted transmission method, the required number of cores for each system is obtained from the transmission method definition data. , And obtain the sum of all the systems of the system. -Media backup The backup system prepared when the transmission method is determined is the media backup. This is handled in the same way as the current system, and the number of cables is calculated to prepare a spare medium. FIG.
In 5, the numbers 20, 12, and 32 are calculated as an example of the required number of cores. Cable mapping of the constituent units of the required core number meter is performed. When the required number of cores is 32, one cable of 50 constituent units may be allocated.

FIG. 36 is a flowchart of a method for obtaining the number of cables for mapping a medium. When the required number of cores of the applicable medium s is n, the number of cables is obtained by the following method. In other words, the definition data of the applicable medium s has a structural unit of L1, L2,... Lm (L1 <L2 <.
(Assuming that there are m types of constituent units). Let Ki be the number of cables for each structural unit. First, Ki = 0 is set (step 401), and N = n is set (step 40).
2). Next, the minimum i that satisfies N ≦ Li is obtained (step 403). When i = 1, m, Ki =
Ki + 1 is counted up (step 405), and i =
When it is not possible to obtain 1, m, since N> Lm, the largest one is adopted and i = m (step 404). Next, the number of remaining cores is calculated, and N = N-Li is calculated (step 406). A final decision is made. If N> 0, the process returns to step 401, and if N ≦ 0, the process ends (step 407). In addition, the same method is used for mapping that includes coaxial and wireless, in addition to the optical cable.

Next, the P8 process (calculation of equipment cost) in FIGS. 2 and 3 will be described. FIG. 38 is a schematic explanatory diagram of the cost calculation method. After the mapping of the transmission equipment and the medium equipment is completed, the cost is calculated. As for the cost, the switching equipment cost and the transmission equipment cost are calculated for each building, the line cost (including radio) is calculated for each section, and the basic cost is input to each section to calculate the overall cost. The cost calculation method is shown in (i) to (iv). (I) Calculation of switching costs The following data unit numbers for each switching model calculated at the time of network design:... U U Traffic by unit: Ai (i = 1 , U) Number of subscriber lines per unit ··· Li (i = 1, U) Number of relay lines per unit ····· Applicable to switching models for switching equipment data based on Ti (i = 1, U) Calculate using the cost of the column to be executed. Exchange cost = $ (Ai * traffic proportional cost + Li * subscriber line proportional cost + Ti * trunk line proportional cost) + cost per unit 11) Note that Σ is the total sum of the unit i up to i = 1 and U. Therefore, replacement cost = Σexchanger cost. Replacement costs are tabulated for each building.

(Ii) Calculation of transmission equipment cost As costs specified in the equipment definition data of the apparatus A, an overhead cost = c1, a unit cost = c2, and an IF1 cost g
, Gt, IF2 cost h1, h2, ...
Ht. There are cases where IFs having different high-order group velocities are accommodated in a mixed manner (e.g., 52 M and 156 M of mB). In the above,
This shows that there are t types of higher-order group velocities. At this time, the cost C of the device A is expressed by the following equation. Here, Σ indicates that the sum of the costs for each higher-order group speed is taken, and the number of IF2 is the number of entries registered in the accommodation table (for each IF1). Therefore, transmission cost = Σdevice cost (sum of all devices). The transmission cost is
Aggregated by building.

(Iii) Line cost Calculated using the corresponding medium cost of the medium facility definition data. For the line cost, the cost is calculated only for the transmission system (there is no line cost for the lower-level paths in the inclusive relation). Calculation Method When the media of the media types 1 to k are used in the section A to the section B, the cable cost of the medium i is expressed by the following equation. Cost = Distance between buildings A and B * Proportion for medium i distance proportional * Cable body of medium i + Fixed cost for medium i * Number of cables for medium i (13) Track costs are tabulated for each section. For wireless,
A similar cost calculation method is used.

(Iv) Basic costs The costs other than the equipment (exchange, transmission equipment, and line) costs are used as the basic costs, and are added to the cost per building (exchange cost + transmission equipment cost) and the cost per section (line cost). As a result, the cost other than the equipment can be reflected in the network cost. Therefore, the total cost for each building and each section is as follows. Cost per building = Switch cost + Transmission equipment cost + Basic cost for fixed section Cost per section = Line cost + Section distance * Section cost proportional to section distance + Basic section fixed section cost (15) As described above, in the present embodiment, the network cost is calculated by calculating the specific equipment name and the number of equipment required for the network, so that a highly accurate cost can be calculated. Further, since no facility design skills are required, costs can be easily calculated. Furthermore, since the equipment is automatically calculated, there is no need to input data at the time of equipment design, and the network cost calculation time can be greatly reduced.

[0035]

As described above, according to the present invention,
A highly accurate system that automatically calculates network costs without the need for skills can be realized, greatly reducing design operation and consolidating costs for large-scale networks such as real networks. , And can be calculated efficiently.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a network design system to which the present invention is applied.

FIG. 2 is a part of a functional configuration diagram of a cost calculation unit in FIG. 1;

FIG. 3 is another part of the functional configuration diagram of the cost calculation unit.

FIG. 4 is a diagram showing a data structure of transmission method definition data.

FIG. 5 is a diagram showing a data structure of transmission facility definition data.

FIG. 6 is a diagram showing a data structure of medium equipment definition data.

FIG. 7 is a diagram showing a data structure of exchange equipment definition data.

FIG. 8 is a diagram illustrating an example of a path network configuration.

9 is a diagram showing a path information table and a system information table of the path network in FIG.

FIG. 10 is a diagram showing a system-path information table and a path-path information table of the path network in FIG. 8;

FIG. 11 is a schematic flowchart of selection of a transmission system and a device according to the present invention.

FIG. 12 is an explanatory diagram showing a procedure for determining a system closed in one section.

FIG. 13 is a diagram showing a designation order, a condition, a range, and a target section showing a procedure for determining a system.

FIG. 14 is an explanatory diagram in a case where a transmission system is in one layer in a procedure for determining a system that spans a plurality of sections.

FIG. 15 is an explanatory diagram in a case where a transmission system straddles two or more hierarchies in a procedure for determining a system straddling a plurality of sections.

FIG. 16 is a flowchart of a system path information table process after a transmission system is determined.

FIG. 17 is a diagram illustrating an example of creating a standby system in the transmission system.

FIG. 18 is a diagram showing a standby system route.

FIG. 19 is a flowchart for creating a building-specific counter.

FIG. 20 is a diagram showing a system path information table, a path path information table, and a line path information table.

FIG. 21 is a diagram illustrating an example of a sort process of building-specific counter data.

FIG. 22 is a diagram showing a building-by-building counter of building B.

FIG. 23 is an operation flowchart showing classification of building-specific counters.

FIG. 24 is a diagram illustrating the concept of an intra-office path.

FIG. 25 is an operation flowchart of a next group determination process for an intra-office path.

FIG. 26 is a diagram illustrating an example of IF conversion.

FIG. 27 is a diagram showing a list of mapping methods for each case.

FIG. 28 is a flowchart showing a method for bringing together a building-specific counter and transmission facility definition data.

FIG. 29 is also a flowchart of a device mapping method and a diagram of accommodating an IF.

FIG. 30 is a processing flowchart of a counter of the inter-station path in FIG. 26;

FIG. 31 is a processing flowchart of an intra-office path building counter.

FIG. 32 is a diagram related to accommodating a mapping facility in a method of storing each device in an accommodation table.

FIG. 33 is a diagram showing a method of storing each device in the accommodation table for each building in the method of storing each device in the accommodation table.

FIG. 34 is a diagram illustrating a design result of a path network design unit in mapping of a transmission medium.

FIG. 35 is a diagram illustrating processing performed when a transmission method is determined in mapping of a transmission medium and system summation by section.

FIG. 36 is an explanatory diagram of how to determine the number of cables.

FIG. 37 is a processing flowchart of a conventional cost calculation method using single money.

FIG. 38 is a diagram schematically illustrating a cost calculation method.

[Explanation of symbols]

10: In-house system, 11: Traffic creation unit, 12:
Existing network analysis unit, 13: dedicated line input unit, 14: circuit network design unit, 15: path network design unit, 16: cost calculation unit, 17 ...
Network evaluation unit, 18 Database, 19 Equipment data setting unit, 31 Inter-station path P1, 32 Inter-station path P2, 33
XC device, 34 ... inter-office path P3, 35, 36 ... intra-office path P5, 37, 38 ... exchange.

Continuation of front page (72) Inventor Kenichi Mase 1-6-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation Examiner Yukio Tanaka (56) References JP-A-4-47375 (JP, A) JP Hei 7-152809 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) G06F 17/50 650 G06F 17/50 608

Claims (1)

(57) [Claims] To design a network for carrying calls such as telephones using a computer system, the arrangement of exchanges and transmission paths, the number of exchanges, and the number of transmission lines are determined based on the distribution of communication terminals and traffic flows. A cost calculation system for a network design system, which is a database A for storing definition data of transmission methods, transmission equipment, media equipment, and switching equipment used for network design.
And a path-path information table, which is a set of path pairs indicating the inclusive relationship between paths in the path multiplexing hierarchy, a system-path information table, which is a set of system-path pairs indicating the inclusive relationship between paths and systems, and the inclusive relationship between lines and paths A line-path information table, which is a set of line-path pairs indicating information, a path information table indicating information unique to each path, a system information table indicating information unique to each system, and line group information indicating information unique to each line group and <br/> database C for storing a table, the database C to the stored Pasupasu information table or the system over path information table or line Pasu information table, and the path information table, the system information table, with reference to the circuit group information table , Pass-path information table, system-path information table Path, system path pair, and line-path pair displayed in the table, the line-path information table, and the inter-station path extracted for each building name in which the path pair, the system path pair, or the higher-order group side of the line-path pair is housed. together to automatically create a building-specific counters for all buildings, based on the building-specific counter of the station between the path, the path pairs of the building by the counter between the stations pass, system-pass pairs, station path from the line Pasu pairs Extracts only the path pairs, system-path pairs, and line-path pairs accommodated in the office, and displays the intra-office path for connecting the intra-office devices in which the source building name and the destination building name of the path are the same. Automatically create a database
D for each building in the building counter stored in the database D, and for each path pair, system path pair and line-path pair in the building-to-station and intra-office path counters stored in the database D High-order group is cut to return the lower-order path to the lower-order group path, or is terminated in the building to connect to the exchange, and the attribute of "contact" to transfer to a different path in one building, transmission Consider the system, SDH / PDH / analog classification, and exchange interface, and enter the device name in the above data.
A search is performed from the transmission facility definition data stored in the database A, mapping is performed to specify a device required to accommodate the system, path, and line accommodated in the above-mentioned counter for each building, and a counter for each building in the database D is obtained. Register with
Calculating a mapping function means, the apparatus registered in the building by counter of the database D, performs implementation in real device based on device configuration information of the transmission facilities definition data, the number of necessary apparatus for equipment cost that was aggregated and accommodating functional unit that stored in the database, the number of devices stored in the database, calculates a cost required to construct the network
Network cost calculation system characterized by having a capital of calculation function means.