WO2021104051A1

WO2021104051A1 - Site coordinate planning method, apparatus, device, and storage medium

Info

Publication number: WO2021104051A1
Application number: PCT/CN2020/128768
Authority: WO
Inventors: 姚贞
Original assignee: 中兴通讯股份有限公司
Priority date: 2019-11-29
Filing date: 2020-11-13
Publication date: 2021-06-03
Also published as: CN112887112A

Abstract

Provided are a site coordinate planning method, apparatus, device, and storage medium. The method comprises: initializing a balance value according to information of the number of stations in a network topology, and randomly assigning coordinate values to target sites in a set region of the network topology (S110); according to rejection parameters and traction parameters between target sites, adjusting the coordinate values of the target site, the number of adjustments being equal to the balance value (S120).

Description

Site coordinate planning method, device, equipment and storage medium

Cross-references to related applications

This application is filed based on a Chinese patent application with an application number of 201911204301.5 and an application date of November 29, 2019, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this disclosure.

Technical field

The present disclosure relates to the field of optical fiber communication, and in particular to a method, device, equipment, and storage medium for site coordinate planning.

Background technique

In the field of optical fiber communication, in the process of importing the site and fiber connection information in the network topology into the network planning system, the resource information obtained from the outside of the system does not have the site coordinate information required by the network planning and optimization system, and the user needs to know the network topology. Coordinates of the site in the processing. At this stage, hard processing is mainly used to process the site coordinates in the network topology, that is, to arrange the site coordinates according to a preset template. Although this method can solve the problem of site overlap, it cannot show the fiber connection of the site. There will be a phenomenon of high degree of overlap of the connecting fibers or confusion of the connecting fibers, which cannot meet the actual application scenarios.

Summary of the invention

The present disclosure provides a site coordinate planning method, device, equipment, and storage medium for planning site coordinates in a network topology.

The embodiment of the present disclosure provides a method for planning site coordinates, including: initializing a balance value according to information about the number of sites in a network topology, and randomly assigning coordinate values to target sites in a set area of the network topology; and The repulsion parameters and traction parameters between the target stations are adjusted to the coordinate values of the target stations, and the number of adjustments is equal to the balance value.

The embodiment of the present disclosure provides a site coordinate planning device, including an initialization module, which is used to initialize a balance value according to information about the number of sites in a network topology, and randomly assign coordinate values to target sites in a set area of the network topology And an adjustment module for adjusting the coordinate value of the target station according to the rejection parameter and the traction parameter between the target station, and the number of adjustments is equal to the balance value.

The embodiments of the present disclosure provide a computer device, including a memory, a processor, and a computer program stored on the memory and capable of running on the processor. The processor implements any of the embodiments of the present disclosure when the program is executed. method.

The embodiment of the present disclosure provides a storage medium that stores a computer program, and when the computer program is executed by a processor, any one of the methods in the embodiments of the present disclosure is implemented.

Regarding the above embodiments and other aspects of the present disclosure and their implementation manners, more descriptions are provided in the description of the drawings, the specific embodiments, and the claims.

Description of the drawings

The drawings described here are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure, and do not constitute an improper limitation of the present disclosure. In the attached picture:

FIG. 1 is a flowchart of a method for planning site coordinates in an embodiment of the disclosure;

FIG. 2 is a schematic diagram of a network topology listed in the embodiments of the disclosure;

FIG. 3 is a flowchart of a method for planning site coordinates in an embodiment of the disclosure;

4 is a schematic structural diagram of a site coordinate planning device in an embodiment of the disclosure; and

FIG. 5 is a schematic structural diagram of a computer device in an embodiment of the disclosure.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other arbitrarily.

In an exemplary embodiment, FIG. 1 is a flowchart of a method for site coordinate planning. This exemplary embodiment may be suitable for planning site coordinates in a network topology. The method may be implemented by a site coordinate planning device. When executed, the apparatus can be implemented by software and/or hardware, and generally can be integrated in an electronic device, which can be a server, a computer, or a tablet computer. Specifically, referring to FIG. 1, the method specifically includes the following steps:

S110: Initialize the balance value according to the information about the number of stations in the network topology, and randomly assign coordinate values to the target stations in the set area of the network topology.

The network topology refers to the specific physical or logical arrangement of the members that constitute the network. The network topology in the field of optical fiber communication can contain multiple sites and fiber connection information between multiple sites. Among them, multiple sites It may include business sites and non-business sites; for example, the business site may be an optical terminal multiplexer (OTM); the non-business site may be an optical line amplifier (OLA).

The balance value can be initialized according to the information about the number of sites in the network topology. For example, if the number of sites in the network topology is 20, the balance value can be 60; if the number of sites in the network topology is 30, the balance value Can be 90. It should be noted that the relationship between the balance value and the number of sites is not fixed, and the balance value can also be set according to the experience of the developer, which is not limited in the embodiments of the present disclosure.

After initializing the balance value according to the information of the number of stations in the network topology, the coordinate values can be randomly assigned to the target stations in the set area of the network topology. For example, an area can be randomly selected and randomly assigned to the target stations in the network topology. The coordinate value. It should be noted that the target sites in the network topology are all sites in the network topology, including both business sites and non-business sites.

S120: Adjust the coordinate value of the target station according to the rejection parameter and the traction parameter between the target stations, and the number of adjustments is equal to the balance value.

After randomly assigning coordinate values to the target sites in the network topology, the coordinate values of the target sites can be adjusted according to the rejection parameters and traction parameters between the target sites, where the number of adjustments is equal to the balance value set in S110. Exemplarily, if the set balance value is 60, the target site in the network topology is adjusted 60 times; if the set balance value is 90, the target site in the network topology is adjusted 90 times. It should be noted that the purpose of adjusting the target site in the network topology is to make the site coordinate planning more in line with user expectations, to display the network topology more reasonably, and to facilitate user operations.

In some embodiments, before adjusting the coordinate value of the target site according to the rejection parameter and the traction parameter between the target sites, it may further include: arranging the non-business sites in the target site in an arithmetic sequence.

The two business sites in the network topology can include multiple non-business sites. Before adjusting the values of the sites in the network topology, the coordinate values of the multiple non-business sites included between the two business sites can be arithmetic. The arrangement of numbers facilitates the subsequent planning of site coordinates. Exemplarily, the abscissa values of the non-business sites may be arranged in an arithmetic sequence, or the ordinate values of multiple non-business sites may be arranged in an arithmetic sequence, which is not limited in the embodiment of the present disclosure. It should be noted that in the embodiments of the present disclosure, the coordinate values of multiple non-business sites included between two business sites can also be arranged in other ways, for example, the coordinate values of multiple non-business sites included between two business sites can be arranged. The coordinate values are arranged in a geometric sequence or other arbitrary regular mathematical arrangement, which is not limited in the embodiment of the present disclosure.

In some embodiments, adjusting the coordinate values of the target sites according to the rejection parameters and traction parameters between the target sites may include: obtaining the rejection parameters between the target sites through the bubbling method, and adjusting the target sites according to the rejection parameters. The coordinate value.

Obtain the rejection parameters between the target sites through the bubbling method, and adjust the coordinate values of the target sites according to the rejection parameters, which may include: sequentially acquiring the rejection parameters between the first site and sites other than the first site through the bubbling method, Adjust the coordinate value of the first station according to the rejection parameter. It should be noted that the first site can be any site in the target site in the network topology. In the embodiments of the present disclosure, it is named the first site only for the convenience of description, and it is not a limitation of the embodiments of the present disclosure. .

Exemplarily, if the network topology includes three target sites A, B, and C, the exclusion parameters between site A and site B can be obtained in turn through the bubbling method, and adjusted according to the exclusion parameters between site A and site B The coordinate value of station A; then obtain the rejection parameter between station A and station C, and adjust the coordinate value of station A again according to the rejection parameter between station A and station C; then obtain the rejection parameter between station B and station C Parameter, adjust the coordinate value of station A again according to the rejection parameter between station B and station C.

The repulsion parameter between the two stations can be: the distance and/or the included angle between the two stations. Exemplarily, if the distance between the first station and the second station is l and the included angle is α, the horizontal displacement of the first station may be klsinα, and the vertical displacement may be klcosα, where k is a constant , Its specific value is related to the site model. It should be noted that in this embodiment, other formulas may also be used to obtain the horizontal and vertical displacements of the first station, which will not be described in the embodiments of the present disclosure. Wherein, the first site and the second site may be any two sites in the network topology. In the embodiments of the present disclosure, only for convenience of description, they are named the first site and the second site.

It is conceivable that the greater the distance l between the two stations, the smaller the displacement of the station in the horizontal direction; the greater the angle α, the greater the displacement of the station in the horizontal direction, that is, the greater the adjustment range; The greater the distance l between the stations, the smaller the displacement of the station in the vertical direction; the greater the angle α, the greater the displacement of the station in the horizontal direction, that is, the greater the adjustment range.

It should be noted that if the network topology contains multiple target sites, it is necessary to obtain the exclusion parameters between any two sites in the network topology through the bubbling method. The obtained exclusion parameters can be used for any of the two sites. The coordinates of one station are adjusted; the coordinates of two stations can also be adjusted at the same time, which is not limited in the embodiment of the present disclosure.

In some embodiments, adjusting the coordinate values of the target stations according to the rejection parameters and the traction parameters between the target stations may also include: obtaining the traction parameters between the target stations through the bubbling method, and adjusting all the target stations according to the traction parameters. Describe the coordinate value of the target site.

Obtain the traction parameters between the target stations through the bubbling method, and adjust the coordinate values of the target stations according to the traction parameters, including: sequentially obtaining the traction parameters between the second station and the stations connected to the second station through the bubbling method, according to the traction Parameter adjusts the coordinate value of the second site, where the second site is any site in the target site. In the embodiment of the present disclosure, it is named as the second site only for the convenience of description. It is not a reference to the embodiment of the present disclosure. limited.

Exemplarily, if the network topology includes three target sites A, B, and C, where site A is connected to site B and site C through optical fiber; site B is connected to site A and site C through optical fiber; site C is connected to site B And site A is connected by optical fiber. Then the traction parameters between station A and station B can be obtained in turn by the bubbling method, and the coordinate values of station A can be adjusted according to the traction parameters between station A and station B; then the traction parameters between station A and station C can be obtained, Adjust the coordinate values of station A again according to the traction parameters between station A and station C; then obtain the traction parameters between station B and station C, and adjust station A again according to the traction parameters between station B and station C The coordinate value.

In another specific example of the embodiment of the present disclosure, it is possible to traverse the fibers in the network topology to obtain the sites at both ends of the multiple fibers; obtain the traction parameters of the sites at the two ends of the multiple fibers, and adjust the multiple fibers according to the traction parameters. The coordinates of the stations at both ends of the fiber.

In the network topology in the field of optical fiber communication, two sites need to be connected through optical fibers to realize information exchange between the two sites. The sites connected at both ends of the optical fiber have traction. Therefore, it is necessary to traverse the connecting fibers in the network topology to obtain more information. Two stations at both ends of the fiber connection, so as to obtain the traction parameters between the stations. Exemplarily, if the network topology includes 10 fiber connections, 10 pairs of sites at both ends of the fiber connection can be traversed

In some embodiments, obtaining the traction parameters of the sites at the two ends of the multiple fibers, and adjusting the coordinate values of the sites at the two ends of the multiple fibers according to the traction parameters may include: obtaining the first fiber link site and the second fiber link at both ends of the first fiber For the traction parameters between the second fiber-linking stations, adjust the coordinate value of the first fiber-linking station according to the traction parameters.

Exemplarily, the traction parameters between the first fiber connection site and the second fiber connection site at both ends of the first fiber connection may include: the distance between the two sites l, the abscissa distance Δx between the two sites, and the ordinate distance between the two sites Δy. It is conceivable that the horizontal displacement of the first fiber connection site, that is, the displacement of the x-axis is proportional to the distance l between the two sites, and is proportional to Δx; the horizontal direction of the second fiber connection site, that is, the displacement of the y-axis and the distance between the two sites l is proportional to Δy. Among them, the first fiber connection site and the second fiber connection site can be any two sites at both ends of the fiber connection in the network topology. In the embodiments of the present disclosure only for the convenience of description, they are named as the first fiber connection site and The second fiber connection site.

In some embodiments, according to the rejection parameters and traction parameters between the target sites in the network topology in the above steps, the coordinate value adjustment of the target sites in the network topology is performed only once, and then the target sites in the network topology can be adjusted only once. The next coordinate value adjustment is performed. When the number of adjustments is equal to the initial balance value, the adjustment of the coordinate value of the target site in the network topology can be ended. At this time, the site coordinate planning can be considered to be converged, and the planning process can be ended. The entire network topology Achieve balance.

The above-mentioned site coordinate planning method initializes the balance value according to the information of the number of sites in the network topology, and randomly assigns coordinate values to the target site in the set area of the network topology; according to the rejection parameters and traction parameters between the target sites, the target site Adjust the coordinate value of, and the number of adjustments is equal to the balance value. It realizes the automatic planning of the site coordinates in the network topology, solves the problem of site overlap, and can well display the fiber connection of the site.

In order to better understand the embodiments of the present disclosure, FIG. 2 illustrates an optical fiber communication network topology, including optical fibers 210, OTM sites 220, and OLA sites 230; among them, the number of optical fibers 210 in the network topology is 14 and the number of OTM sites 220 The number is 4, and the number of OLA sites 230 is 10.

In an exemplary embodiment, FIG. 3 is a flowchart of a method for site coordinate planning. This exemplary embodiment continues to describe the embodiments of the present disclosure on the basis of the foregoing embodiments. Specifically, referring to FIG. 3, the method specifically includes the following steps:

S310. Initialize the network topology balance value.

The balance value is initialized according to the information of the number of stations in the network topology. When the site information of the external system is imported into the planning optimization system, all sites have no coordinates and all graphic elements overlap; the balance value is initialized according to the number of sites. In this example, it is assumed that there are 20 sites in the network topology. The balance value is set to 60.

S320. Randomly assign coordinate values to stations in the network topology.

S330. Split the multiplex section. Specifically, the non-business site OLA sites in the network topology are distributed in an arithmetic sequence, that is, the distance between two adjacent OLA sites is set to a fixed value.

S340. Calculate repulsion parameters between the two sites through bubbling traversal. The horizontal displacement and the vertical displacement of all the stations in the network topology are calculated according to the repulsion parameters between the two stations, so as to obtain the new coordinates of all the stations in the network topology.

S350, traverse all the connecting fibers in the network topology by bubbling, and calculate the traction parameters between the two connecting fiber sites. Traverse all connected fibers in the network topology to obtain multiple fiber-connected sites corresponding to multiple fiber-connected sites, and calculate the horizontal and vertical displacements of all the sites in the network topology according to the traction parameters between the two fiber-connected sites. , So as to get the new coordinates of all stations in the network topology.

S360. Whether the balance value is reached. Determine whether the adjustment times of all site coordinates in the network topology have reached the set balance value; if so, end the site coordinate planning; if not, continue to adjust the site coordinates in the network topology.

In the case of a more complex network topology, the site coordinate planning method provided by the embodiments of the present disclosure can more effectively display the network topology in a reasonable manner, and facilitate user operations.

Of course, there are many other embodiments in the embodiments of the present disclosure. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the embodiments of the present disclosure, but these corresponding changes and modifications should fall within the protection scope of the embodiments of the present disclosure. .

In an exemplary embodiment, FIG. 4 is a schematic structural diagram of a site coordinate planning device, which can execute the site coordinate planning method in any embodiment of the present disclosure, and the device can be implemented by software and/or hardware. Specifically, referring to FIG. 4, the device mainly includes: an initialization module 410 and an adjustment module 420.

Wherein, the initialization module 410 is used to initialize the balance value according to the information about the number of stations in the network topology, and randomly assign coordinate values to the target station in the set area of the network topology;

The adjustment module 420 is configured to adjust the coordinate value of the target site according to the rejection parameter and the traction parameter between the target sites, and the number of adjustments is equal to the balance value.

In the solution of this embodiment, the balance value is initialized according to the information about the number of stations in the network topology through the initialization module, and the coordinate values are randomly assigned to the target stations in the set area of the network topology; Repulsion parameters and traction parameters, adjust the coordinate value of the target site, the number of adjustments is equal to the balance value. It realizes the automatic planning of the site coordinates in the network topology, solves the problem of site overlap, and can well display the fiber connection of the site.

In some embodiments, the site coordinate planning device may further include: an arrangement module, configured to arrange non-business sites in the target site in an arithmetic sequence.

In some embodiments, the adjustment module 420 may include: an exclusion parameter acquisition unit, configured to obtain exclusion parameters between target sites through a bubbling method, and adjust the coordinate values of the target sites according to the exclusion parameters.

In some embodiments, the rejection parameter acquisition unit is further specifically configured to sequentially acquire rejection parameters between the first site and other sites through the bubbling method, and adjust the coordinate values of the first site according to the rejection parameters.

The optional adjustment module 420 may also include: a traction parameter acquisition unit for traversing the fiber connections in the network topology to obtain multiple sites at both ends of the fiber connection; acquiring the traction parameters of the sites at the two ends of the multiple fiber connections, according to the traction parameter Adjust the coordinate values of the stations at the ends of multiple connecting fibers.

In some embodiments, the traction parameter acquisition unit is further specifically configured to acquire traction parameters between the first fiber connection site and the second fiber connection site at both ends of the first fiber connection, and adjust the coordinate value of the first fiber connection site according to the traction parameters .

The site coordinate planning device in the solution of this implementation manner can execute the site coordinate planning method in any implementation manner in the embodiments of the present disclosure, and has the corresponding functional modules and beneficial effects of the implementation method.

In an exemplary embodiment, FIG. 5 is a schematic structural diagram of a computer device provided by an embodiment of the disclosure. As shown in FIG. 5, the computer device includes a processor 50, a memory 51, an input device 52, and an output device 53; The number of processors 50 in the computer equipment may be one or more. In FIG. 5, one processor 50 is taken as an example; the processor 50, the memory 51, the input device 52, and the output device 53 in the computer equipment may use a bus or other means. Connection, Figure 5 takes the connection via the bus as an example.

As a computer-readable storage medium, the memory 51 can be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the site coordinate planning method in the embodiment of the present invention (for example, the site coordinate planning device Initialization module 410 and adjustment module 420). The processor 50 executes various functional applications and data processing of the computer equipment by running the software programs, instructions, and modules stored in the memory 51, that is, realizes the aforementioned site coordinate planning method.

The memory 51 may mainly include a program storage area and a data storage area. The program storage area may store an operating system and an application program required for at least one function; the data storage area may store data created according to the use of the terminal, and the like. In addition, the memory 51 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some examples, the memory 51 may further include a memory remotely provided with respect to the processor 50, and these remote memories may be connected to a computer device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 52 can be used to receive input digital or character information, and to generate key signal input related to user settings and function control of the computer equipment. The output device 53 may include a display device such as a display screen.

In an exemplary embodiment, a storage medium containing a computer program is provided, when the computer program is executed by a computer processor, a method for site coordinate planning is performed, and the method includes:

Initialize the balance value according to the information of the number of stations in the network topology, and randomly assign coordinate values to the target stations in the set area of the network topology;

According to the rejection parameters and traction parameters between the target sites, the coordinate values of the target sites are adjusted, and the number of adjustments is equal to the balance value.

Of course, a storage medium containing a computer program provided by an embodiment of the present disclosure is not limited to the method operations described above, and can also perform related operations in the site coordinate planning method provided by any embodiment of the present invention.

The above are only exemplary embodiments of the present disclosure, and are not used to limit the protection scope of the present disclosure.

Those skilled in the art should understand that the term user terminal encompasses any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser, or a vehicle-mounted mobile station.

In general, the various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device, although the present disclosure is not limited thereto.

The embodiments of the present disclosure may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware. Computer program instructions can be assembly instructions, Industry Standard Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, status setting data, or written in any combination of one or more programming languages Source code or object code.

The block diagram of any logic flow in the drawings of the present disclosure may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program can be stored on the memory. The memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), optical Storage devices and systems Digital Video Disc (DVD) or Compact Disc (CD), etc. Computer-readable media may include non-transitory storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field Programmable Gate Array, FGPA), and processors based on multi-core processor architecture.

By way of exemplary and non-limiting examples, a detailed description of the exemplary embodiments of the present disclosure has been provided above. However, considering the accompanying drawings and claims, various modifications and adjustments to the above embodiments are obvious to those skilled in the art, but they do not deviate from the scope of the present invention. Therefore, the proper scope of the present invention will be determined according to the claims.

Claims

A method for site coordinate planning, including:

Initializing the balance value according to the information about the number of stations in the network topology, and randomly assigning coordinate values to the target station in the set area of the network topology; and

The coordinate value of the target station is adjusted according to the rejection parameter and the traction parameter between the target stations, and the number of adjustments is equal to the balance value.
The method according to claim 1, wherein, before adjusting the coordinate value of the target station according to the rejection parameter and the traction parameter between the target stations, the method further comprises:

Arrange the coordinate values of the non-business sites in the target site in an arithmetic sequence.
The method according to claim 1, wherein the adjusting the coordinate value of the target site according to the rejection parameter and the traction parameter between the target sites comprises:

Obtain the rejection parameters between the target sites through the bubbling method respectively, and adjust the coordinate values of the target sites according to the rejection parameters.
The method according to claim 3, wherein the obtaining the rejection parameters between the target sites through the bubbling method respectively, and adjusting the coordinate values of the target sites according to the rejection parameters, comprises:

Obtain the rejection parameters between the first station and the stations other than the first station in sequence through the bubbling method, and adjust the coordinate values of the first station according to the rejection parameters, where the first station is the target station Any site in.
The method according to claim 1, wherein the adjusting the coordinate value of the target site according to the rejection parameter and the traction parameter between the target sites comprises:

The traction parameters between the target stations are obtained through the bubbling method respectively, and the coordinate values of the target stations are adjusted according to the traction parameters.
5. The method according to claim 5, wherein said obtaining the traction parameters between the target stations through a bubbling method respectively, and adjusting the coordinate values of the target stations according to the traction parameters comprises:

The traction parameters between the second station and the stations connected to the second station are sequentially acquired by the bubbling method, and the coordinate values of the second station are adjusted according to the traction parameters, wherein the second station is the target station Any of the sites.
A site coordinate planning device, including:

The initialization module is configured to initialize the balance value according to the information about the number of stations in the network topology, and randomly assign coordinate values to the target stations in the set area of the network topology; and

The adjustment module is configured to adjust the coordinate value of the target site according to the rejection parameter and the traction parameter between the target sites, and the number of adjustments is equal to the balance value.
The device according to claim 7, wherein the site coordinate planning device further comprises:

The arrangement module is configured to arrange the coordinate values of the non-business sites in the target site in an arithmetic sequence.
A computer device comprising a memory, a processor, and a computer program stored on the memory and running on the processor, wherein the processor executes the program as described in any one of claims 1 to 6 method.
A storage medium storing a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 6 is realized.