JP4802158B2 - Communication medium selection device, communication medium selection method, and communication medium selection program - Google Patents

Description

  The present invention relates to a technology for selecting a communication medium in a communication station used for commercial purposes. In particular, the present invention relates to a communication medium selection device, a communication medium selection method, and a communication medium selection program for selecting a laid communication medium.

  FIG. 25 shows the configuration and service characteristics of the communication medium in the communication station. The communication medium in the communication station is roughly divided into a rack (wiring rack, intermediate rack), an in-house device, and a cable connecting them. The intermediate rack is located between the wiring rack and the in-house device. The wiring rack includes a one-end adapter for blocking the test light. The intermediate rack is a relay adapter for relaying the cable between the wiring rack and the intermediate rack and the cable between the intermediate rack and the in-house device, and a branching device (SP: Splitter for branching the optical signal into a plurality of branches) ). Further, the in-house device includes a device terminal (package (PKG)) for providing the optical service.

(About service characteristics of communication media in communication stations)
First, before describing the prior art of selecting a communication medium, the service characteristics of the communication medium in the communication station will be described. Within a communication station, there are mainly three patterns as service types.

  FIG. 25 (b) shows a service form of the direct acquisition system (SS: Single Star). A one-to-one relationship is maintained from the start point (user side) to the end point (inside device side), and one end point always exists for one start point. In this case, as a communication medium in the communication station, a medium such as a core wire / terminal that is not always occupied by another user is selected.

  FIG. 25 (c) shows a service form of a multi-branch system (PON: Passive Optical Network). An n-to-1 relationship is established from the start point (user side) to the end point (inside device side). This is a format in which a single fiber is shared by a plurality of users to an SP in the middle of an optical signal emitted from the on-site device side that is the end point. Services are provided with multiple cores and terminals. As a feature of this service, in the case of selection of the first user, as in the SS service, the communication medium in the communication station is a medium such as an empty core / terminal that is not always occupied by other users. However, in the case of selection with the same service for the next user, all the core wires / terminals from the device to the SP are in an occupied state (connected), and there is an empty terminal on the output side (user side) at the SP. Opening is possible.

  FIG. 25 (d) shows a form of service of wavelength division multiplexing (WDM). An n-to-m relationship is established between the start point (user side) and the end point (inside device side). There are a plurality of in-house devices that are the end points, independent signals are emitted from each of them, and the optical signal is wavelength-multiplexed by an SP for wavelength multiplexing on the way, and further, the optical signal is branched as in the PON service to a plurality of users. Share on. This is a format in which optical signals emitted from a plurality of in-house devices as end points are accommodated in one SP and shared up to the SP, and therefore, services are provided by a plurality of cores / terminals up to the SP. As a feature of this service, after selecting the equipment for the first terminal (wavelength 1), it is necessary to confirm that the selection was successful, and then select the second terminal (wavelength 2) again. Occurs twice.

  In the case of the selection of the first user, as in the SS service, the communication medium in the communication station is a medium such as an empty core / terminal that is not always occupied by other users. However, in the case of selection by the same service of the second user, all the core wires / terminals from the in-house device to the SP are occupied (connected) and can be opened if there is an empty terminal on the SP output side. Become. Also, as a difference from the PON service, in the case of wavelength multiplexing, there are a plurality of SP device side terminals, so even if selection is successful at the first terminal (wavelength 1), there is no equipment at the second terminal (wavelength 2). In this case, selection cannot be performed. For this reason, after the selection of the first terminal (wavelength 1) is successful, it is necessary to select the second terminal (wavelength 2) again while retaining the information of the corresponding wavelength multiplexing SP.

(Characteristics of selected media in communication stations)
In order to select a communication medium in a communication station, a search is made for a path (a connection between a cable and a wiring rack or an in-house device) between any two points in the communication medium group in the communication station, and the heart that forms the path It is necessary to search for a line, an adapter terminal, and a multi-branch / wavelength multiplexing adapter terminal. In addition, in order to select the route of any point-to-point terminal in the communication medium group in the communication station, service provision conditions, equipment conditions, usage status and status of communication medium components, loss (connection point) / number of connection work points It is necessary to select a route that takes into account.

  Here, the service provision conditions are the communication method, the number of optical branches, the communication wavelength, the test wavelength, the connector reflection characteristics (optical characteristics), the optical transmission mode, the number of necessary media, the planned use date / the planned abolition date. The equipment conditions are the shape of the connector and adapter terminal attached to the cable core, and connection is not possible unless the shape of both is the same. The usage status of the components of the communication media means that the availability of the communication media is used here because the availability of each communication media (equipment not used for the service) is used when providing the service. . The status of the components of the communication medium is used to determine whether each communication medium can be used for service. The status is “in use in good equipment”, “good equipment in free equipment”, “bad” "Equipment", "Reserved with good equipment (empty)", "Reserved with good equipment (in use)", and when selecting a communication medium for service provision, Select and change to “Reserved with good equipment (vacant)”, and then change to “In use with good equipment” after the service starts. Also, when making a selection when service is abolished, change “in use with good equipment” to “reserved with good equipment (in use)”, and then change to “empty equipment with good equipment” after service abolishment. . The communication medium group must connect the communication media with a connector or the like when configuring the path of the point-to-point terminal. Therefore, the more connection points between the two points, the greater the loss of communication, and the connection work occurs at the connection points, so the quality is better the fewer connection points when configuring the route of the communication medium, Workability will be good.

  Therefore, when selecting the communication medium in the communication station, the route selection considering the service provision conditions, equipment conditions, usage status and status of communication medium components, loss (connection point) / number of connection work points shown above is implemented. When trying to do so, there are innumerable patterns of the core route. In particular, with the recent technological advances, the service forms (SS, PON, WDM) also become more complex, and the selection policy will change further for the first or second user, so that equipment selection that covers all conditions will be implemented. Requires enormous effort. Therefore, in selecting a communication medium in a communication station, in addition to a communication medium selection method for selecting an arbitrary route between two terminals, the PON service needs to be efficiently selected in consideration of the WDM service.

  However, when the above selection is performed, the number of cables is several thousand, the number of racks is several tens, and the number of devices is several tens. The route candidates from the start point to the end point at the time of selection are in units of billions. Therefore, the problem is how to select a route efficiently and obtain a route selection result that is close to the optimum.

(Prior art 1)
As a route search method between two points, for example, there are route search (selection) methods such as those in railway transfer navigation and car navigation described in Patent Literature 1, Patent Literature 2, and Patent Literature 3.

  In these navigations, a route search is performed while comparing time, distance, or fare by the Dijkstra method or the like. In selecting the equipment of the communication medium group in the communication station, the path search for the point-to-point terminal is also performed. As shown in FIG. 25, the communication medium group in the communication station is a cable, a rack that accommodates the cable, and an in-house device. . In addition, since the cable is composed of multiple core wires, cable racks, and in-house devices are composed of multiple adapter terminals, not only the path of the point-to-point terminal but also which core wire and adapter terminal in the path are used. It is necessary to select what to do. At that time, it is necessary to determine the use status (whether connection is made) and the state (whether it can be used) of each core wire and adapter terminal. Therefore, even if it is the optimum route, the route cannot be used without a core and adapter terminal that can be used, and selection must be made in consideration of the use conditions and states of each communication medium constituting the route. .

  As a general example of the above-mentioned conventional technology, there is a technology for selecting the optimal route between stations from the start point to the end point as a route selection technology adopted by the passenger railway industry, and it exists between the start point and the end point. There is a function that evaluates all routes between the start point and the end point from the time axis and the cost axis based on the information on the station to be used and the cost and time information between the stations, and displays the result to the user. However, when this technology is applied to communication equipment, the medium (railway in the railway) becomes a cable / bridge, and the selection target (train in the railway) becomes a service signal.

  Further, as another example of the above-described conventional route selection technology, there is a route selection technology adopted by the aviation industry. When selecting a route from the start point to the end point, there are a case where one airline is used directly and a case where several airlines are used to go to the destination. If you use multiple airlines to go to your destination, keep information such as boarding time, arrival time, flight time, cost, etc. for each airline between airports and go to your destination via several airports Even in such a case, there is a function that evaluates all the routes between the starting point and the ending point connecting the airports with the information of each company from the time axis and the cost axis, and displays the result to the user. In addition, there is a route selection method that takes into account the combination information in the case of crossing a plurality of airlines in consideration of the link information of each company.

  However, when the above-mentioned conventional technology is applied to communication equipment, if one user has already used one service, such as a multi-branch service, and there is an empty equipment at the second terminal, the second user In the case of communication facilities, there is a service that uses the terminal to receive services. However, since the utilization state on the equipment from the apparatus to the branching medium is the equipment in use, the concept of further using the equipment in use is required when the above-described path selection technique is to be used. Even in such a facility in use, it is different in that it does not take into account whether or not it is available.

  In the above prior art, a multi-branch service for branching a signal transmitted from one apparatus into a plurality and a wavelength division multiplexing service for aggregating signals transmitted from a plurality of apparatuses and multi-branching are selected. The purpose is different from the communication medium selection technique in the communication station, and the target field is also clearly different in that there is no concept of selecting a free facility taking into account the facility being used.

  The premise is different between the above prior art and the communication medium selection. In the case of the above prior art, the cost to the station and the station, the airport and the airport is known in advance, whereas in the case of selecting a communication medium, the cost is unknown between points, and when routing, the route between points If you do not combine the media that make up, you will not know the cost. That is, the selection of the communication medium in the communication station requires the establishment of a medium route and the establishment of a detailed core route.

  Furthermore, as a route selection technology adopted by the delivery industry due to recent technological innovations, the GPS device is attached to a transport medium such as a truck, and its location information is grasped and managed by satellite, as well as road congestion. Is obtained in real time, and there is a route selection method for selecting an optimum route from the current position and destination information of the transport medium and road information. However, when the above technology is applied to communication equipment, in addition to the characteristics such as multi-branching and wavelength multiplexing, the occupancy of the equipment is not considered. The above technology takes into account the usage status (congestion status) of the route and selects a route with less congestion, but in the case of communication equipment, one user has already used it like a multi-branch service. Since it is necessary to select a second user in consideration of the route that is being used, the technology that takes into account the usage status of the above technology does not take into account the characteristics that a user gets on top of the user. Therefore, it is not suitable as a route selection technology for communication equipment.

(Prior art 2)
An example of a system that manages and operates passive components such as communication media in a communication station is described in Patent Document 4, for example. By following the processing procedure of the computer software described above, a series of operation methods from the design of the passive component group to the construction and removal are established. The series of operations includes the automatic selection of passive components, but in the communication media group within the communication station, the route is selected simply by connecting the passive components that make up the route. Can not do it. This is because the communication medium path in the communication station must be selected based on conditions such as the communication method and the number of optical branches, communication wavelength, test wavelength, workability, scheduled use date, scheduled abolition date according to the service. .

  In addition, as described above, in selecting a communication medium in a communication station, it is necessary to consider selecting a wavelength division multiplexing service or a multi-branch service. It is possible to match the connection of actual equipment and components with the database in the series of flow from design to operation, and to make automatic selection that realizes efficient equipment operation based on an accurate database. Since this is only the definition, it is clearly different from the field targeted for communication medium selection in that the above characteristics are not taken into consideration.

(Prior art 3)
Further, as one of similar technical fields, for example, there is a selection technique in Patent Document 5. However, this technology is targeted mainly at equipment outside the communication station, and the configuration and characteristics of off-site communication media with special equipment structure (tape structure) and wiring blocks for demand management The communication medium is selected from the wiring block and the wiring block adjacent to the wiring block in consideration of the above points. The above prior art does not take into account the selection of wavelength division multiplexing services and multi-branch services, and connection search and cable route and core route search functions that are considered necessary for the efficient implementation of in-house communication facilities. However, it is clearly different from the field targeted for communication media selection.

(Prior art 4)
Further, as one of the technical fields within the management target range of similar communication media, there are technologies of Patent Document 6 and Patent Document 7. However, although the above technology is the same in the part where the target communication medium is in the communication station, it is only one method for managing the communication medium, and the efficient, quick and accurate management of the equipment in the communication station and the circuit design This is intended for in-kind verification. In addition, because it is a technology in the wiring management system for performing efficient wiring work, the selection processing part considered necessary for implementation selection on the basis of establishment of equipment management is not taken into account. It is clearly different from the field targeted for communication medium selection in that it does not take into account the connection search and cable route and core route search functions that are considered necessary for efficient communication facility selection.

(Prior art 5)
Further, as a conventional technique for selecting a similar communication medium, there is a technique disclosed in Patent Document 8. This prior art selects a communication medium based on the result of performing a full search of a selection target section.
JP-A-10-134108 JP 09-161105 A JP 09-257503 A JP 2001-142952 A JP 2000-332893 A JP 2000-069106 A Japanese Patent Laid-Open No. 11-031178 JP 2005-006180 A

  In selecting communication media in a communication station, considering that there are innumerable patterns of route selection conditions and performing route selection corresponding to various provided service forms (SS, PON, WDM), for example, There is a problem like this.

  It is necessary to consider a PON service that provides a service to a user by branching an optical signal to a plurality of core wires between paths of arbitrary two point terminals in a communication medium group in a communication station. This PON service is a characteristic method in a communication station, and a single core can be shared by a plurality of users using a PON device. In other words, it is necessary to select a point-to-point terminal based on the concept that the terminal from the device to the branch device is in use, but the terminal on the output side of the branch device can be used by other users. However, since there is no selection technology that is conscious of the service that branches in the communication station, even if the first user of the PON service is selected manually, the selection route pattern is enormous when selecting through multiple multi-branch devices. Occurs and becomes difficult by hand.

  On the other hand, since the conventional technique 5 is a full search, even if the conventional technique 5 is used, there is a problem that it takes enormous labor and time for the operator to select from all the core line patterns. In other words, there is no standard for extracting the most optimal route from a large number of candidate cardiac route routes at the fastest speed.

  The present invention provides a communication medium selection device, a communication medium selection method, and a communication medium selection program that enable selection in consideration of a PON service or a WDM service when selecting an arbitrary route in a communication medium group in a communication station. For the purpose.

  1st invention is a communication medium selection apparatus which selects the communication medium in a communication station, The communication medium basic information storage part which memorize | stores the property of the communication medium in a communication station, The use condition and state of each communication medium in a communication station A communication medium configuration storage unit to be stored, an arbitrary point-to-point terminal of the communication medium group, and a service provision condition specified, and a use status and a state of each communication medium stored in the communication medium configuration storage unit, and a communication medium basic Based on the properties of each communication medium stored in the information storage unit, the route search processing unit for determining a route candidate capable of connecting any two-point terminal of the specified communication medium group and the route search processing unit A communication medium route reservation storage unit that stores a route selected from the route candidates, and a control unit that controls the above-described units.

  The route search processing unit sets a selection condition, determines whether or not the condition is correct, a device terminal priority search unit that prioritizes when there are a plurality of device terminals to be selected, and a selection candidate Reduces the amount of search for the core route, and the connection search unit that searches so that it can be selected according to the service provision conditions, the cable between the two points (start point to end point), the wiring rack, the route between the in-house devices A cable route search unit that searches for a cable route, a cable route rearrangement unit that rearranges a plurality of cable routes in priority order, and a cable route searched by the cable route search unit configures the cable route based on the selection conditions. A core route search unit that searches for the route of the core wire and adapter terminal, a storage unit that stores the core route searched by the core route search unit, and a service specified by the user If There wavelength multiplexing, comprising cable route search unit, the cable route rearranging unit, and a wavelength multiplexing route search section for selecting a wavelength-multiplexed route through the core wire route search unit.

  According to a second aspect of the present invention, the use state and state of each communication medium stored in the communication medium configuration storage unit, and the communication medium basic information storage unit, which are designated by any two point-to-point terminals of the communication medium group and service provision conditions In the communication medium selection method, a route candidate that can connect any two point-to-point terminals of the specified communication medium group is determined based on the properties of each communication medium stored in the communication medium, and the communication medium in the communication station is selected. A selection condition determination procedure for setting conditions and determining whether the conditions are correct, a device terminal priority search procedure for assigning priorities when there are a plurality of device terminals to be selected, and a core route as a selection candidate A cable route search that searches for a route between two points (start point to end point) cable, wiring rack, and in-house device, and a connection search procedure for searching so that the search amount can be reduced and the service provision conditions can be selected. From the procedure, the cable route rearrangement procedure for rearranging multiple cable routes in order of priority, and the cable route searched in the cable route search procedure, the core wires and adapter terminals that make up the cable route based on the selection conditions If the service specified by the user is wavelength-multiplexed, the cable route search unit, the cable route A wavelength multiplexing route search procedure for selecting a wavelength multiplexed route via the rearrangement unit and the core route search unit.

  The device terminal priority search procedure confirms the selection contents, moves to the connection search procedure when manually setting, and extracts all device terminals that match the device terminal type that matches the service when automatically set, and wiring Considering the location of the rack, set the priority order for each device terminal, sort the device terminals in order of priority, and pass the selection criteria for the wiring rack / device terminal to the setting logic in order from the lowest number. There are a procedure to acquire, a procedure for judging whether or not there is a selection candidate, a selection error if there is no selection candidate, and a procedure for shifting to a connection search procedure if there is a selection candidate.

  In the connection search procedure, the service method is confirmed, the service type is confirmed in the case of the wavelength division multiplexing method, and in the case of the video method, the selection procedure of the wavelength division multiplexing service <request for selection of only the video system> In the case of the wavelength multiplex service selection procedure <voice system + video system simultaneous selection request>, check the service method, and in the case of direct acquisition and multi-branch method, the procedure to acquire the terminal of the in-house device, and the terminal If there is a terminal, check the presence of a terminal, check the presence of a terminal, check the connection destination if not, and if it is a core wire or branch device output code, the upper side Check the connection destination of the adapter terminal and the connection destination, if it is an adapter, compare whether or not it is the same quality as the past configuration search NG route, and if it is the same quality, return to the procedure to acquire the terminal of the in-house device. In the case of The update to the terminals of the article, and a procedure for transition to cable route search procedure.

  The cable route search procedure checks the service conditions of one-end adapter, and if it is not one-end adapter (NG), it will be a selection error. If it is a single-ended adapter (OK), check the procedure for obtaining the cable on the upper side of the wiring rack and the service conditions. If it is NG, search for another route candidate. If there is another route candidate, connect the next cable. Confirm and return to the procedure for obtaining the cable on the upper side of the wiring rack. If there is no other route candidate, check the procedure and the service conditions, and if OK, check the upper rack of the cable. If there is an intermediate rack, integrate multiple cables between the same rack, search for routes based on the upper rack, and return to the cable acquisition procedure for the upper rack, and the upper cable If the confirmation result of the rack is a rack or device that includes the selected reference point, it is determined whether the number of vias is within a predetermined number a, and if it is within a, the number of vias is calculated and retained as a cable route And the top side of the cable If the recognition result is other than that, or if the number of vias exceeds a, exclude from the cable route, search for other route candidates, and after holding as a cable route, check the existence of other route candidates, If there is, check the next cable, if not, check whether there is a route being held, if there is no route held, it will be a selection error, if there is, the cable route rearrangement procedure And the procedure to move to.

  The cable route rearrangement procedure compares the procedure for acquiring the cable route from a certain rack to the selected target rack with the route with the minimum number of vias in the comparison route and the acquired cable route. The procedure for rearranging the cable routes when the route is large, and determining whether there are other cable route candidates. If there are other cable route candidates, the cable route from a certain rack to the selected target rack again The procedure returns to the procedure for obtaining the core route, and if there is none, the procedure goes to a core route search procedure.

  The core route search procedure checks whether the upper (inside) side is connected, searches for candidates for the next item when there is no connection, determines whether the selection reference point has been reached, and selects the reference point If the service condition is met, the first service condition conformance is judged, and if the service condition conforms, the selection is completed. If the service condition does not conform to the selection reference point, a detailed search is performed. The procedure to shift to the process and if the selection reference point is not reached, check whether the branch device has passed, if not, check the branch device passage status, and if not connected, branch to search for branch devices Procedure for shifting to device search processing A and if there is a branch device passing or if the branch device passing status is already connected, it is determined whether or not the cable can be connected. Procedure to move to process B If connection to the cable is not possible, determine whether connection to the adapter connection cable is possible. If connection is possible, the procedure moves to the adapter connection cable search process C for searching for the adapter connection cable, and the connection between the adapters. If the connection to the cable is not possible, it is determined whether the connection to the relay adapter is possible. If the connection is possible, the process proceeds to the relay adapter search processing D for searching for the relay adapter. When returning to the beginning of the procedure and confirming whether the upper (inside) side is connected or not, if there is a connection, acquire the connected product and determine whether the second service condition is met. Confirms whether or not the selection reference point has been reached if the procedure goes to the process for performing a detailed search and the second service condition conforms, and if it can be reached, the selection is completed. If it is not possible, another route candidate is selected as a route not to be selected as a procedure for returning to the beginning of the core route search procedure and a detailed search for shifting to the case where the first and second service conditions are not met. If there is no route candidate, return to the unconnected item on the lower side of the item that does not meet the service conditions to search for candidates, return to the beginning of the core route search procedure, and no other route candidates Has a procedure for processing as a selection error.

  Branch device search processing A searches for branch devices connected on the input side from the lowest number in the cable priority order. If search is not possible, the procedure returns to the core route search procedure, and if search is possible, the corresponding equipment is the selection reference point. If the selection reference point is reached, the procedure for returning to the first service condition conformity determination is returned. If the selection reference point cannot be reached, the smallest of the unconnected branch devices on the input side is determined. If the search is not possible, the procedure returns to the core route search procedure. If the search is possible, it is determined whether or not the corresponding equipment has reached the selection reference point. The procedure returns to the determination of service condition conformity, and when it is not reachable, the procedure returns to the core route search procedure.

  The cable search process B searches from a cable with a high priority. If the search is impossible, the process returns to the core route search procedure. If the search is possible, it is determined whether the corresponding equipment has reached the selection reference point. If it is not possible, the procedure returns to the core route search procedure. If the selection reference point has been reached, the procedure returns to the determination of the first service condition conformance.

  The adapter connection cable search process C searches from the highest priority of the adapter connection cable section. If the search is impossible, the process returns to the core route search procedure, and if the search is possible, the corresponding equipment is selected as a reference point. If it is not reachable, the procedure returns to the core route search procedure. If it reaches the selection reference point, the procedure returns to the first service condition conformance determination. A procedure for returning to the line route search procedure.

  The relay adapter search processing D searches for relay adapters connected on the input side from the lowest number in the priority order of the cables. If the search is not possible, the procedure returns to the core route search procedure. If the selection reference point has been reached, the procedure returns to the first service condition conformance determination. If the selection reference point cannot be reached, the most unconnected relay adapter on the input side If the search is not possible, the procedure returns to the core route search procedure. If the search is possible, it is determined whether or not the corresponding equipment has reached the selection reference point. The procedure returns to the determination of service condition conformity, and when it is not reachable, the procedure returns to the core route search procedure.

  In the selection error process, the number of device terminals is confirmed. If the number of device terminals is n, the selection is completed. If the number of device terminals is less than n, the process returns to the procedure for obtaining the device terminals and the reselection process is performed. Have a procedure.

  The wavelength multiplexing service selection procedure <Video system selection request> checks whether there is a wavelength multiplexing branch device (input side), if it is not, the selection fails, and if there is, the procedure for checking the end of the video system route If the end of the video route is other than the video device, extract the video device terminal, then establish the video device, and select the video route after establishing the video device. If the selection is completed, check if there is another video system device candidate. If there is another video system device candidate, return to the procedure for establishing the video system device. Have.

  Wavelength multiplexing service selection procedure <voice system + video system simultaneous selection request> selects the voice system route as a multi-branch service, and if the voice system selection fails, the selection fails, and if the voice system selection succeeds, the wavelength multiplexing branch A procedure for confirming the end of the video route from the device (input side), a procedure for extracting the video device terminal if the end of the video route is other than the video device, and then establishing the video device; After establishing the video system, select the video system route. If it is successful, make a reservation in the audio system + video system and complete the selection. If it is unsuccessful, check for other route candidates. If there is, there is a procedure for returning to the establishment procedure of the video system device, and if there is no candidate, canceling the audio system route and causing the selection failure.

  A communication medium selection program according to a third aspect of the invention is characterized in that each part of the first invention is processed by a computer, and each procedure of the second invention is executed by the computer to select a communication medium in a communication station.

  The present invention is an apparatus and method for selecting a route of a communication medium group in a communication station composed of passive articles. First, an optimal device terminal is selected by a device terminal priority search unit, and a connection search is performed. The inside selection reference point can be clarified, and route search (cable route search) for cables, wiring racks, and in-house devices can be performed. In addition, after cable route search, prioritize cable routes, and select by 5-step route search that performs route search (core route search) with the core wire, wiring rack, and adapter terminal that forms the in-house device. It is characterized by doing. Thereby, an unnecessary route search can be omitted, and the efficiency of the selection process can be improved for a selection portion that has been delayed in the existing search method.

(Configuration example of communication medium selection device)
FIG. 1 shows a configuration example of a communication medium selection device of the present invention.
In the figure, the communication medium basic information storage unit 101 is a property of a communication medium in a communication station, for example, a cable, the number of cores, a connector type, a connector reflection characteristic (optical characteristic), an optical transmission mode, a filter type (test In the case of an adapter terminal, the number of terminals, the connector type, the connector reflection characteristic (optical characteristic), the filter type, the number of light branches, and the like are stored. The communication medium configuration storage unit 102 stores accommodation relations and connection relations between communication media, and usage statuses and states of the communication media. When an arbitrary point-to-point terminal of a communication medium group and a service provision condition are specified, the route search processing unit 106 includes accommodation relations, connection relations and communication relations between the communication media stored in the communication medium configuration storage unit 102. Based on the usage status and state of the medium and the nature of each communication medium stored in the communication medium basic information storage unit 101, a route that can connect any two point-to-point terminals of the specified communication medium group is selected.

  The communication medium route reservation storage unit 104 stores a route selected from the route candidates determined by the route search processing unit 106. The command processing unit 103 connects the route search processing unit 106 and the communication medium route reservation storage unit 104, and changes a command according to an instruction from the input / output device 112 that is input via the input / output interface unit 110 and the input unit 109. The output unit 108 outputs the route stored in the communication medium route reservation storage unit 104 to the input / output device 112 via the input / output interface unit 110. The control unit 100 controls each component. Hereinafter, the configuration and processing procedure of the route search processing unit 106 will be described.

(Configuration example of route search processing unit 106)
FIG. 2 shows a configuration example of the route search processing unit 106.
In the figure, a selection condition unit 113 sets a selection condition and determines whether the condition is correct. The device terminal priority search unit 114 determines whether to select a device terminal with a high priority or a device terminal desired by the user. The connection search unit 115 performs a search so that the search amount of the cardiac route that is a candidate for in-house selection can be reduced, and selection can be made in the PON service and the WDM service. The cable route search unit 116 searches for a route between a cable, a wiring rack, and an in-house device between two points (start point to end point). The cable route rearrangement unit 117 rearranges the plurality of cable routes with priorities. The core line route search unit 118 searches the cable route searched by the cable route search unit 116 for the route of the core line and adapter terminal constituting the cable route based on the selection condition. The storage unit 119 stores the cardiac route searched by the cardiac route search unit 118. If the service specified by the user is wavelength multiplexing, the wavelength multiplexing route searching unit 120 selects the wavelength multiplexing route by using the cable route searching unit 116, the cable route rearranging unit 117, and the core route searching unit 118. .

  The communication medium selection apparatus of the present invention can be realized by a computer corresponding to the above apparatus configuration and a program for executing the processing procedure described below, and the program can be recorded on a recording medium via a network. It is also possible to do.

(Processing procedure of device terminal priority search unit 114)
FIG. 3 shows a processing procedure of the device terminal priority search unit 114.
In the figure, the device terminal priority search unit 114 confirms the selection contents (S301), and in the case of manual setting, the operator directly specifies a device candidate from the GUI, and shifts to processing of the connection search unit 115. In the case of automatic setting, all device terminals that match the service terminal type that matches the service and are selected are extracted (S302). Next, considering the location of the wiring rack, priority is set by the number of passages between the lower part of the device terminal and the selection reference point on the wiring rack (S303). Next, sort the device terminals in order of priority, and pass the selection conditions for wiring racks and device terminals to the setting logic in order from the top (S304). The terminal to be used. Acquire device terminals based on the steps up to this point (S305), determine whether there is a selection candidate (S306), select a selection error if there is no selection candidate (S307), and if there is a selection candidate, The process proceeds to the connection search unit 115. Also, a reselection process S308, which will be described later, interrupts a process S305 for acquiring a device terminal.

(Processing procedure of connection search unit 115)
FIG. 4 shows a processing procedure of the connection search unit 115.
In the figure, the connection retrieval unit 115 confirms the service method (S401), confirms the service type in the case of the WDM method (S402), and in the case of the video system, the WDM service selection procedure <selection request for video system only> (S403, FIG. 12), in the case of the audio system + video system, the WDM service selection procedure is <audio system + video system simultaneous selection request> (S404, FIG. 11).

  When the service method is SS or PON method, the terminal of the in-house device is acquired (S405), the presence / absence of the terminal is confirmed (S406), and if there is, the lower side connection destination is acquired until the terminal becomes empty Repeat (S407). Then, when there is no terminal, the connection destination is confirmed (S408), and in the case of a cord or branch device output code, the upper adapter terminal is obtained (S409), and is the same quality as the previous configuration search NG route? Whether or not is compared (S410). On the other hand, if the connection destination is an adapter, it is compared with the previous configuration search NG route as it is (S410). If it is the same, return to the terminal acquisition (S405) and select if it is different The reference point is updated to the terminal of the article (S411), and the process proceeds to the next cable route search unit 116.

(Processing procedure of cable route search unit 116)
FIG. 5 shows a processing procedure of the cable route search unit 116.
In the figure, the cable route search unit 116 confirms the service condition of the one-end adapter (S501), and if it is not the one-end adapter (NG), a selection error is determined (S502). If it is a single-ended adapter (OK), acquire the cable on the upper side of the wiring rack (S503), check the service conditions (S504), search for another route candidate in the case of NG (S505), and select another route candidate. If there is, check the next cable (S506), and return to obtaining the cable on the upper side of the wiring rack (S503). On the other hand, if there is no other route candidate, a selection error is determined (S502).

  If the service condition is OK, check the upper rack of the cable (S507). If it is an intermediate rack, integrate multiple cables between the same rack (S508). The route is searched (S509), and the process returns to the acquisition of the cable on the upper side of the wiring rack (S503). If the result of checking the upper rack of the cable is a rack or device that includes the selected reference point, determine whether the number of vias is within a (S510), and if it is within a, calculate the number of vias and check the cable Hold as root (S511). When the confirmation result of the upper side rack of the cable is other than that, or when the number of vias exceeds a, it is excluded from the cable route (S512), and another route candidate is searched (S505). Here, a is set as a fixed number of frames in an external file or the like.

  After holding as a cable route in S511, check whether there is another route candidate (S513), if there is, check the next cable (S506), if not, check if there is a held route. (S514). If no route is held, a selection error is determined (S502). If there is a route, the process proceeds to the next cable route rearrangement unit 117.

(Processing procedure of cable route rearrangement unit 117)
FIG. 6 shows a processing procedure of the cable route rearranging unit 117.
In the figure, the cable route rearrangement unit 117 acquires a cable route from a certain rack to the selected rack (S601), and compares this cable route with the route with the minimum number of vias in the comparison experience route (S602). ), When the minimum via route is large, the cable routes are rearranged (S603), and it is determined whether there are other cable route candidates (S604). If the minimum via route is small or equal, it is determined whether there is another cable route candidate as it is (S604). When there is another cable route candidate, the cable route from a certain rack to the selected target rack is acquired again (S601), and when there is no cable route, the process moves to the core route search unit 118.

(Processing procedure of the core route search unit 118)
FIG. 7 shows a processing procedure of the core route search unit 118.
In the figure, the core route search unit 118 confirms whether there is a connection on the upper (inside) side (S701), searches for a candidate for the next article when there is no connection (S702), and reaches the selection reference point. (S703). If the selection reference point has been reached, the service condition conformance is determined (S704), and if the service condition conforms, the selection is completed (S705). However, if the service condition is not met even when the selection reference point is reached, the process proceeds to a process for performing a more detailed search (S719 and later).

  If the selection reference point is not reached in S703, the presence / absence of passage of the branch device is confirmed (S707). If not, the branch device passage status is confirmed (S708). Transition (S709). On the other hand, if there is a branch device passing in S707, or if the branch device passing status is already connected in S708, it is determined whether or not the cable can be connected (S710), and if the connection is possible, the process proceeds to cable search processing B. (S711). If the cable cannot be connected, it is determined whether or not the cable can be connected to the adapter connection cable (S712). If the cable can be connected, the process proceeds to the adapter connection cable search process C (S713). If connection to the adapter connection cable is not possible, it is determined whether or not connection to the relay adapter is possible (S714). If connection is possible, the process proceeds to relay adapter search processing D (S715). If it is not possible to connect to the relay adapter, the process returns to S701 and the same processing is repeated.

  The presence / absence of connection on the upper (inside) side is confirmed (S701). When the connection is established, the connected article is acquired (S716), and the service condition conformity is determined (S717). If the service condition is not met, the process shifts to a process for performing a more detailed search (S719 and later). If the service condition is met, whether or not the selection reference point can be reached is confirmed (S718). If it can be reached, the selection is completed (S705). If not, the process returns to S701 and the same processing is repeated.

  If the service condition is not met in S704, S717, the route is not selected (S719), and the presence or absence of another route candidate is determined (S720). If yes, the unconnected article on the lower side of the article that does not meet the service condition The process returns to (S721) and returns to S701. On the other hand, if there are no other route candidates, the number of device terminals is confirmed as a selection error (S722). If the number of device terminals is n, the selection is completed (S705). Returning to 3 re-selection processing S308.

FIG. 8 shows a processing procedure of branch device search processing A.
In the figure, in branch device search process A, the branch device connected on the input side is searched from the lowest number in the priority order of the cable (S731). If search is impossible, the process returns to S701, and if search is possible, the corresponding equipment is selected. It is determined whether or not the reference point has been reached (S732). If it is not reachable, the lowest number of the branch device that is not connected to the input side is searched (S733). In the case of (2), it is determined whether or not the corresponding equipment has reached the selection reference point (S734). If the selection reference point is reached in S732 or S734, the service condition conformity is judged from the * in Fig. 7 (S704), the selection is completed when the service condition conforms (S705), and the service condition is not met Move to S719.

FIG. 9 shows the procedure of the cable search process B.
In the figure, in cable search process B, a search is made from cables with high priority (S741). If search is not possible, the process returns to S701. If search is possible, it is determined whether the corresponding equipment has reached the selection reference point. (S742), if unreachable, return to S701. In addition, if the selection reference point has been reached, the service condition conformity is judged from the * in FIG. 7 (S704), the selection is completed when the service condition is met (S705), and the service condition is not met after S719. Transition.

FIG. 10 shows a processing procedure of the adapter connection cable search processing C.
In the figure, in the adapter connection cable search process C, search is made from the adapter connection cable section with the highest priority (S751). If the search is impossible, the process returns to S701, and if the search is possible, the corresponding equipment is selected. It is determined whether or not the reference point has been reached (S752). If the reference point cannot be reached, the process returns to S701. In addition, when the selection reference point has been reached, the service condition conformity is judged from * in FIG. 7 (S704), the selection is completed when the service condition conforms (S705), and the process proceeds to S719 when the service condition does not conform To do.

FIG. 11 shows the processing procedure of the relay adapter search processing D.
In the figure, in the relay adapter search process D, the relay adapter connected on the input side is searched from the lowest number in the priority order of the cable (S761). If search is impossible, the process returns to S701, and if search is possible, the corresponding equipment is selected. It is determined whether or not the reference point has been reached (S762). If it is not reachable, the youngest number of the relay adapter that is not connected to the input side is searched (S763). In the case of (2), it is determined whether or not the corresponding equipment has reached the selection reference point (S764). If the selection reference point has been reached in S762 or S764, the service condition conformity is judged from the * in Fig. 7 (S704), the selection is completed if the service condition is met (S705), and if the service condition is not met, S719 Migrate to

FIG. 12 shows a wavelength multiplex service selection procedure (video system selection request, S403 in FIG. 4).
In the figure, the presence / absence of a wavelength division multiplexing device (input side) is confirmed (S801), and if it is not present, the selection fails (S802). If yes, the end of the video route is confirmed (S803). If the end of the video route is other than the video device, the video device terminal is extracted (S804), and the video device is established (S805). If the end of the video route is a video device, the video device is established as it is (S805). Next, the video route is selected (S806), and if successful, the selection is completed (S807). If it is unsuccessful, the presence / absence of another video device candidate is checked (S808). If there is, the video system device is established again (S805), and if not, the selection fails (S802).

FIG. 13 shows a wavelength multiplexing service selection procedure (voice system + video system simultaneous selection request, S404 in FIG. 4).
In the figure, the voice route is selected as a multi-branch service (S811), and when the voice route selection fails, the selection fails (S812). When the audio system selection is successful, the termination of the video system route from the wavelength division multiplexing equipment (input side) is confirmed (S813), and if the termination of the video system route is other than the video system device, the video system device terminal is extracted ( S814), establishing a video system device (S815). If the end of the video route is a video device, the video device is established as it is (S815). Next, a video system route is selected (S816), and if successful, a reservation is made in the audio system + video system (S817), and the selection is completed (S818). If there is a failure, check for the presence of another route candidate (S819). If there is another route candidate, establish the video system device again (S815). If not, cancel the audio system route (S820). (S812).

(Execution example of multiple selection in S304 of device terminal priority search unit 114)
FIG. 14 shows an execution example of multiple selection in S304 of the apparatus terminal priority search unit 114.
In the figure, in the existing search method, the selected young terminal is selected regardless of the priority of the device terminal. However, with this method, it was unclear whether a route from the younger number to the wiring rack was established. That is, as in the device terminal (PKG1), when searching for the lower part, the terminal 1 reaches the wiring rack 1 via the intermediate rack 3 and may not be selected. Therefore, a technique for selecting the device terminal closer to the distance between the selection reference points and improving the processing efficiency is required. A connection search is performed in advance from each device terminal (PKG1 to PKG1), and the priority order of the selection reference points 1 to 5 is determined. Note that when the connection state changes between connection and release, the priority order is changed each time.

  As a procedure, the presence / absence of a branch device under each PKG is confirmed. If there is no branch device, priority 4 is set. If there is, a connection search is performed from each PKG, and termination equipment is obtained from each output terminal of the branch device. When this terminal equipment is an intermediate rack and a cable connected to the intermediate rack, priority 3 is set. Also, when the termination equipment is a wiring rack (one-end adapter mounted) and a cable connected to the wiring rack, priority order 1 is set. The wiring racks specified at the time of selection and the wiring racks not specified are not known unless the selection process is performed. In the case of a wiring rack that does not become a selection point, the priority is 2.

  Therefore, in the method of the present invention, PKG2 without branching equipment under each PKG has priority 4, and the termination equipment 1 of PKG1 with the branching equipment under each PKG and the termination equipment 3 of PKG4 are wired. Is not a wiring rack that is a selection point, and therefore has a priority of 2. The termination facility 6 of PKG3 and the termination facility 5 of PKG4 are given priority 3 because the termination facility is an intermediate rack. Finally, the termination facility 4 of the PKG 4 is given priority 1 because the termination facility is a wiring rack. By making the priorities known in this procedure and carrying out selection, it is possible to select device terminals more efficiently, and it is possible to shorten the connection points of selected routes, and routes with high evaluation values for selection. Can be efficiently derived.

(Execution example of multiple selection in S410 of the connection search unit 115)
FIG. 15 shows an execution example of multiple selection in S410 of the connection search unit 115.
In the figure, in the existing search method, the external terminal and the device terminal are selected at 1: 1, and therefore, the terminal in the same connection state may be selected a plurality of times. However, in the method of the present invention, if the terminal connected to each terminal is the same as the device terminal selected in the past, it is not necessary, and only the necessary device terminals are selected, so that the selection process can be performed efficiently. it can. In this example, what succeeded in the sixth time succeeds in the third time, so that the efficiency can be doubled.

(Execution example of cable route selection in S503 of the cable route search unit 116)
FIG. 16 shows an execution example of cable route selection in S503 of the cable route search unit 116.
In the figure, with the existing search method, when the external terminal and the device terminal are established as cable routes, the route can be established regardless of the cable usage rate. However, this method makes the selection space too large. Therefore, a cable with a 100% usage rate was excluded from selection, and technology to reduce the selection space was required.

  In this example, there are 100 single-core cables between the wiring rack and the intermediate rack, and three internal cables between the intermediate rack and the equipment. With the existing search method, the cable route search result is 100 × 3 = 300 routes. According to the method of the present invention, when two of the 100 core cables from the wiring rack to the intermediate rack are vacant and one of the 3 cables in the station between the intermediate rack and the device is vacant, the cable route search result is 2 × 1 = 2 routes. In this way, by reducing the setting space according to the cable usage rate, the selection process can be performed efficiently (200 times).

(Execution example of cable route selection in S507 of cable route search unit 116)
FIG. 17 shows an execution example of cable route selection in S507 of the cable route search unit 116.
In the figure, in the existing search method, when searching for a cable route, the route search is performed at the brute force, so that a duplicate route search is performed. Therefore, a technique for reducing the search amount and shortening the selection time by caching the cable that has failed in the cable route search and excluding it from the next search is necessary.

  In this example, there are 4 in-house cables between the wiring rack and the intermediate rack, and 6 in-house cables between the intermediate rack and the device. In the existing search method, the cable route search count is 4 × 6 = 24 routes. In the method of the present invention, when the wiring rack is the selection target wiring rack and the apparatus 2 is the selection target apparatus, the in-house cable 1 between the wiring rack and the intermediate rack, and the in-house cables 5 to 10 between the intermediate rack and the apparatus. If the search amount is 1 × 6 in the route and the search failure is next in the in-house cables 5 to 8, the in-house cables 2 to 4 and the in-house cables 9 to 10 have a search amount of 3 × 2, for a total of 12 Become the root. Thus, the selection process can be performed efficiently (twice) by reducing the selection space by the cable cache function.

(Execution example of priority selection in S602 of the cable route rearrangement unit 117)
FIG. 18 shows an execution example of priority selection in S602 of the cable route rearranging unit 117.
In the figure, in the existing search method, when searching for a cable route between selection reference points, the first to third routes are configured. In the case of all searches, the core route search is started with the cable route from the younger number, but even if the route that can be opened with the first route is obtained by the core route search, the second route that holds the route, Search for the third core route. After searching all routes, evaluate the open routes and select the best route. However, all searches take a huge amount of time. In the method according to the present invention, priority is given to the number of vias on the cable route. Since the number of vias is small, the number of connection points and connection work points is small. Select.

(Execution example of core route selection in S717 of the core route search unit 118)
FIG. 19 shows an execution example of the core route selection in S717 of the core route search unit 118.
In the figure, in the existing search method, the core route search is performed from the wiring rack, and when the upper side search is further performed in the intermediate rack, the connection relation between the connected terminal on the rear surface and the connection core cable is confirmed. The search amount increases because it is searched whether the connection destination cables of all the connection terminals match the cable route. Therefore, the cable laid on the back side of the intermediate rack is searched, the cable route target cable (that is, the cable searched by the cable route search) is obtained from the cable, and the connection information to the lower side (intermediate back terminal) Therefore, the technology to process with the minimum amount of search is required without searching for other cables.

  In this example, the in-house cable between the wiring rack and the intermediate rack is 1 core and 1 core, and the in-house cable between the intermediate rack and the apparatus is 4 cores and 2 cores. In the existing search method, the number of core route search targets is 1 × 8 = 8 routes. In the method of the present invention, if the in-house cables 2 to 4 between the intermediate racks are already connected, the number of core route search targets is 1 × 2 = 2 routes. Thus, the selection process can be performed efficiently (4 times) by reducing the selection space by the cable cache function.

(Execution example of core route selection in S721 of the core route search unit 118)
FIG. 20 shows an execution example of the core route selection in S721 of the core route search unit 118.
In the figure, the method of the present invention employs a selection method similar to the existing search method. From the designated wiring rack 1 to the inside selection reference point 2, cable route search, cable route rearrangement, and core route are executed. At this time, if the core route is selected from the designated wiring rack 1 and fails before going to the inside selection reference point 2 (A), the selection is performed by returning to the immediately preceding intermediate rack 3.

(Execution example of core route selection in S731 of the core route search unit 118)
FIG. 21 shows an execution example of the core route selection in S731 of the core route search unit 118.
In the figure, in the existing search method, a branch device is preferentially searched. Therefore, even if the route passes through the SS branch device even if the branch device has already passed through the PDS branch device, it is preferentially searched. . As a result, the route is established, but the route has many connection points. Therefore, if the PDS branch device has already been passed, a route with a reduced number of connection points can be selected by preferentially searching for the cable over the branch device. As described above, a route having a high evaluation value for selection can be efficiently derived by the cache function of the branch device.

(Execution example of core route selection in S761 of the core route search unit 118)
FIG. 22 shows an execution example of the core route selection in S761 of the core route search unit 118.
In the figure, in the existing search method, in selecting an adapter / branch device, the lowest numbered terminal is selected from the input side connected routes. If there is no connected terminal, select the lowest number among the unconnected terminals. That is, in selecting an adapter, it is not conscious whether the route has a high priority. As a result, the route is established, but the route has many connection points. Therefore, in selecting an adapter / branch device, the adapter terminals are sorted according to the priority order of the cables in consideration of the cables connected to the higher level. The youngest route is selected. If there is no connected on the adapter input side, the youngest route is acquired. Thus, by expanding the search range, a route with a high evaluation value for selection can be efficiently derived.

(Execution example of core route selection in S763 of the core route search unit 118)
FIG. 23 shows an execution example of the core route selection in S763 of the core route search unit 118.
In the figure, in the existing search method, the adapter is first selected in the direction from the front side to the back side. If there is no cable that can be connected on the upper side, the adapter connection cable is selected prior to selection from the back to the front. Therefore, the next connection destination is searched without considering the front and back surfaces. If the next item is a cable and the front pull-in selection result, use the adapter from the back to the front. Thus, by expanding the search range, a route with a high evaluation value for selection can be efficiently derived.

(Difference in Conventional Technology 5)
In the prior art 5, even when a core route is found, the one having a smaller number of connection points and connection works than other core routes is selected with priority. In the example shown in FIG. 24, when three routes are found in the existing search method, all routes are extracted and then evaluated to select an optimum one. On the other hand, in the present invention, if even one core route is found, the selection can be completed at that time, so that the processing for selecting another core route can be omitted, and the efficiency of the selection process is realized. can do.

  Moreover, in the prior art 5, it selected without being conscious of the connection of the apparatus terminal lower part. In the present invention, as shown in the execution example of FIG. 14 corresponding to the device terminal priority search unit 114 of FIG. 3 and the execution example of FIG. 15 corresponding to the connection search unit 115 of FIG. A device terminal selected once is excluded from the selection target, and a route with a high evaluation value of the selection can be efficiently derived by selecting the connection destination of the lower part of the device terminal closest to the selection target wiring rack. .

  Further, in the prior art 5, a full search is performed between selection reference points. Although this can guarantee the optimality, there is a problem that takes time. In the present invention, as shown in the execution examples of FIGS. 16 and 17 corresponding to the cable route search unit 116 of FIG. 5, the 100% usage rate cable is excluded from the search target of the cable route, and the cable searched once is the cache. By reducing the search space, a route with a high evaluation value for selection can be efficiently derived.

  Further, in the prior art 5, since the entire search is basically performed, the priority order of the cable route is not necessary. Thereby, the optimality can be secured, but there is a problem that takes time. In the present invention, as shown in the execution example of FIG. 18 corresponding to the cable route rearrangement unit 117 of FIG. 6, a route having a high evaluation value for selection is obtained by performing rearrangement by the number of vias between selection reference points. Can be efficiently derived.

  Furthermore, in the present invention, as shown in the execution examples of FIGS. 19 to 23 corresponding to the core route search unit 118 of FIG. 7, the cores searched once are cached to reduce the search space, or to adapter search. Sometimes it is more optimal to select a route that is more optimal based on the priority of the cable ahead of the adapter, and when the jumper core is acquired, it is more optimal based on the priority of the cables on both sides of the adapter A route with a high evaluation value of selection can be efficiently derived by implementing route selection or selecting a route that has passed through a branch device once by lowering the branch device selection order in the subsequent core route selection. it can.

  Further, the present invention is characterized in the wavelength multiplexing service selection procedure of FIGS. 12 and 13 corresponding to the wavelength multiplexing route search unit 120 of FIG. In the prior art 5, there is no “video system only” selection procedure. In addition, there was no selection procedure taking into account the above procedures. In the present invention, a route having a high evaluation value for selection can be efficiently derived by using the wavelength multiplexing service selection procedure.

The figure which shows the structural example of the communication medium selection apparatus of this invention. The figure which shows the structural example of the route search process part. The flowchart which shows the process sequence of the apparatus terminal priority search part 114. FIG. The flowchart which shows the process sequence of the connection search part 115. FIG. The flowchart which shows the process sequence of the cable route search part. The flowchart which shows the process sequence of the cable route rearrangement part 117. FIG. The flowchart which shows the process sequence of the core line route search part 118. FIG. The flowchart which shows the process sequence of branch apparatus search process A. The flowchart which shows the process sequence of the cable search process B. The flowchart which shows the process sequence of the cable search process C for adapter connection. The flowchart which shows the process sequence of the relay adapter search process D. The flowchart which shows the selection procedure (selection request only of a video system) of a wavelength division multiplexing service. 6 is a flowchart showing a wavelength multiplexing service selection procedure (voice system + video system simultaneous selection request). The figure which shows the execution example of multiple selection in S304 of the apparatus terminal priority search part 114. FIG. The figure which shows the execution example of multiple selection in S410 of the connection search part 115. FIG. The figure which shows the execution example of the cable route selection in S503 of the cable route search part 116. FIG. The figure which shows the execution example of the cable route selection in S507 of the cable route search part 116. FIG. The figure which shows the execution example of the priority selection in S602 of the cable route rearrangement part 117. FIG. The figure which shows the execution example of the core line route selection in S717 of the core line route search part 118. The figure which shows the execution example of the core line route selection in S721 of the core line route search part 118. The figure which shows the execution example of the core line route selection in S731 of the core line route search part 118. The figure which shows the execution example of the core line route selection in S761 of the core line route search part 118. The figure which shows the execution example of the core line route selection in S763 of the core line route search part 118. The figure explaining the evaluation method of a selection route. The figure which shows the structure and service characteristic of the communication medium in a communication station.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Control part 101 Communication medium basic information storage part 102 Communication medium structure storage part 103 Command processing part 104 Communication medium route reservation storage part 106 Path search processing part 108 Output part 109 Input part 110 Input / output interface part 112 Input / output device 113 Selection conditions Unit 114 Device terminal priority search unit 115 Connection search unit 116 Cable route search unit 117 Cable route rearrangement unit 118 Core route search unit 119 Storage unit 120 Wavelength division route search unit

Claims (15)

In a communication medium selection device for selecting a communication medium in a communication station,
A communication medium basic information storage unit for storing the properties of the communication medium in the communication station;
A communication medium configuration storage unit for storing a use status and a state of each communication medium in the communication station;
Received designation of any two-point terminal and service provision conditions of the communication medium group, and the use status and state of each communication medium stored in the communication medium configuration storage unit, and stored in the communication medium basic information storage unit A route search processing unit that determines a route candidate that can connect an arbitrary point-to-point terminal of a designated communication medium group based on the property of each communication medium;
A communication medium route reservation storage unit for storing a route selected from the route candidates determined by the route search processing unit;
A control unit for controlling each unit;
With
The route search processing unit
A selection condition section for setting selection conditions and judging whether the conditions are correct;
A device terminal priority search unit for assigning priorities when there are a plurality of device terminals to be selected;
A connection search unit that reduces the search amount of the cardiac route that is a selection candidate and searches so as to be selectable with respect to the service provision conditions;
A cable route search unit for searching for a route between a cable between two points (start point to end point), a wiring rack, and an in-house device;
A cable route rearrangement unit for rearranging a plurality of cable routes with priorities;
From the cable route searched by the cable route search unit, the core wire constituting the cable route based on the selection condition, the core route search unit for searching the route of the adapter terminal,
A storage unit that stores the cardiac route searched by the cardiac route search unit;
If the service specified by the user is wavelength multiplexing, the cable route search unit, the cable route rearrangement unit, and a wavelength multiplexing route search unit that selects a wavelength multiplexed route via the core route search unit A communication medium selection device characterized by the above. The use status and state of each communication medium stored in the communication medium configuration storage unit and each communication stored in the communication medium basic information storage unit in response to designation of any two point terminals of the communication medium group and service provision conditions In a communication medium selection method for determining a route candidate that can connect an arbitrary point-to-point terminal of a specified communication medium group based on the nature of the medium, and selecting a communication medium in a communication station.
A selection condition determination procedure for setting selection conditions and determining whether the conditions are correct;
A device terminal priority search procedure for assigning priorities when there are a plurality of device terminals to be selected;
A connection search procedure for reducing the search amount of the cardiac route as a selection candidate and searching so as to be selectable with respect to the service provision conditions;
A cable route search procedure for searching for a route between two points (start point to end point) cable, wiring rack, and in-house device;
Reordering cable routes to prioritize and reorder multiple cable routes;
From the cable route searched in the cable route search procedure, the core wire constituting the cable route based on the selection condition, the core route search procedure for searching the route of the adapter terminal,
A storage procedure for storing the core route searched by the core route search unit;
If the service designated by the user is wavelength multiplexing, the method includes: a wavelength multiplexing route search procedure for selecting a wavelength multiplexing route via the cable route searching unit, the cable route rearranging unit, and the core route searching unit. A characteristic communication medium selection method. The communication medium selection method according to claim 2,
The device terminal priority search procedure is:
Check the selection contents, move to the connection search procedure when manually setting, and extract all device terminals that match the device terminal type that matches the service when automatically set,
Considering the location of the wiring rack, setting the priority for each device terminal,
Sorting the device terminals in order of priority, passing the selection conditions of the wiring rack / device terminal to the setting logic in order from the youngest, and acquiring the device terminal,
A method for selecting a communication medium, comprising: determining whether there is a selection candidate; if there is no selection candidate, select a selection error; and if there is a selection candidate, proceed to the connection search procedure. The communication medium selection method according to claim 2,
The connection search procedure includes:
Check the service method, check the service type when using the wavelength multiplexing method, select the wavelength multiplexing service <request for selecting only the video system> when using the video system, and wavelength multiplexing when using the audio system + video system. Service selection procedure <Sound + Video simultaneous selection request>
Check the service method, and in the case of direct acquisition and multi-branch method, the procedure to acquire the terminal of the in-house device,
Check the presence or absence of the terminal, if there is a procedure to obtain the lower side connection destination,
Check the presence or absence of the terminal, check the connection destination in the case of no, the procedure to obtain the adapter terminal on the upper side in the case of a core wire or branch device output code,
Check the connection destination, if it is an adapter, compare whether it is the same quality as the previous configuration search NG route, if it is the same quality, return to the procedure for obtaining the terminal of the in-house device, if it is different, select the selection reference point A communication medium selection method comprising: updating to a terminal of an article and shifting to the cable route search procedure. The communication medium selection method according to claim 2,
The cable route search procedure includes:
Check the service condition of one-end adapter, and if it is not one-end adapter (NG), it will be a selection error. If it is a single-ended adapter (OK), get the cable on the upper side of the wiring rack,
Check the service conditions, search for other route candidates in the case of NG, and if there is another route candidate, check the next cable and return to the cable acquisition procedure on the upper side of the wiring rack, there is no other route candidate In the case of a selection error,
Check the service conditions. If OK, check the upper rack of the cable. If it is an intermediate rack, integrate multiple cables between the same rack and search for the route based on the upper rack. And a procedure to return to the cable acquisition procedure on the upper side of the wiring rack,
If the result of checking the upper rack of the cable is a rack or device that includes the selected reference point, it is determined whether or not the number of vias is within a predetermined number a. Procedure to keep as root,
If the confirmation result of the upper side rack of the cable is other than that, or if the number of transit vias exceeds a, the procedure to exclude from the cable route and search for other route candidates,
After holding the cable route, check whether there is another route candidate. If yes, check the next cable. If not, check the route that is held. If there is no route, there is no route. And a procedure for shifting to the cable route rearrangement procedure when there is a selection error. The communication medium selection method according to claim 2,
The cable route rearrangement procedure is as follows:
The procedure to obtain the cable route from a certain rack to the selected rack,
A procedure for comparing the obtained cable route with the route with the minimum number of transit routes in the comparative experience route, and rearranging the cable routes when the route of the minimum transit route is large,
Determine whether there is another cable route candidate. If there is another cable route candidate, return to the procedure for acquiring the cable route from a certain rack to the selected target rack again. A method for selecting a communication medium, comprising: The communication medium selection method according to claim 2,
The cardiac route search procedure includes:
Check if the upper (inside) side is connected, search for candidates for the next item when there is no connection, determine whether the selection reference point has been reached, and if the selection reference point has been reached If the service condition is met, the selection is completed when the first service condition is met, and if the service condition is not met even when the selection reference point is reached, the procedure moves to a process for performing a detailed search. ,
When the selection reference point is not reached, the presence / absence of passage of the branch device is confirmed. When there is no branch device, the passage status of the branch device is confirmed. Procedure and
If there is a passage of the branch device, or if the branch device passage status is already connected, the procedure determines whether or not to connect to the cable, and if it is connectable, the procedure proceeds to cable search processing B to search for the cable;
If connection to the cable is not possible, determine whether connection to the inter-adapter connection cable is possible; if connection is possible, the procedure proceeds to the inter-adapter connection cable search process C to search for the inter-adapter connection cable;
If connection to the adapter connection cable is not possible, it is determined whether or not connection to the relay adapter is possible. If connection is possible, the process proceeds to relay adapter search processing D to search for a relay adapter. A procedure for returning to the beginning of the core route search procedure;
Check if there is connection on the upper side (inside), and if there is a connection, acquire the connected product and determine whether the second service condition is met. If the service condition is not met, perform a detailed search. To move on to processing
In the case of the second service condition conformity, confirm whether the selection reference point can be reached, if it is reachable, the selection is completed, and if not reachable, the procedure returns to the beginning of the core route search procedure;
As a process for performing a detailed search to be transferred when the first and second service conditions are not met, it is determined whether or not there is another route candidate as an unselected route, and if there is, the service conditions are not met. And returning to the unconnected article on the lower side of the article, searching for candidates, returning to the beginning of the core route search procedure, and processing as a selection error when there is no other route candidate, To select a communication medium. The communication medium selection method according to claim 7,
The branch device search process A includes:
Search for branch devices connected on the input side from the lowest number in the priority order of cables. If search is not possible, return to the core route search procedure. If search is possible, check whether the equipment has reached the selection reference point. A procedure for returning to the determination of conformity to the first service condition when the selection reference point is reached,
If the selection reference point is not reachable, the lowest number of branch devices not connected to the input side is searched. If the search is not possible, the procedure returns to the core route search procedure. And a procedure for returning to the determination of conformity to the first service condition if the selection reference point is reached, and returning to the core route search procedure if it is not reachable. A communication medium selection method. The communication medium selection method according to claim 7,
The cable search process B
Search from the cable with high priority.If the search is not possible, return to the core route search procedure.If the search is possible, determine whether the corresponding equipment has reached the selection reference point. Returning to the core route search procedure, the procedure returns to the determination of conformity to the first service condition if the selection reference point has been reached, and returns to the core route search procedure if it cannot be reached. To select a communication medium. The communication medium selection method according to claim 7,
The adapter connection cable search process C includes:
Search from the adapter connection cable section with the highest priority.If the search is impossible, return to the core route search procedure. If the search is possible, determine whether the equipment has reached the selected reference point. If it is not reachable, the procedure returns to the core route search procedure. If the selection reference point has been reached, the procedure returns to the determination of the first service condition conformance. If it is not reachable, the procedure returns to the core route search procedure. A communication medium selection method characterized by having a procedure. The communication medium selection method according to claim 7,
The relay adapter search process D includes
Search for the connected adapter on the input side from the lowest number in the cable priority order. If search is not possible, return to the core route search procedure. If search is possible, check whether the equipment has reached the selection reference point. A procedure for returning to the determination of conformity to the first service condition when the selection reference point is reached,
If the selection reference point is not reachable, the lowest number of the relay adapter that is not connected to the input side is searched. If the search is not possible, the procedure returns to the core route search procedure. And a procedure for returning to the determination of conformity to the first service condition if the selection reference point is reached, and returning to the core route search procedure if it is not reachable. A communication medium selection method. The communication medium selection method according to claim 7,
The selection error handling is
If the number of device terminals is confirmed, the selection is completed if the number of device terminals is n, and if the number of device terminals is less than n, the procedure returns to the procedure for acquiring the device terminal of claim 4 and a procedure for performing reselection processing is provided. A communication medium selection method characterized by the above. The communication medium selection method according to claim 4,
The wavelength multiplexing service selection procedure <video system selection request>
Check the presence / absence of wavelength division multiplexing equipment (input side). If it is not, the selection will fail.
If the end of the video system route is other than a video system device, extract a video system device terminal, and then establish a video system device,
After establishing the video system device, the video system route is selected, and when successful, the selection is completed. When the video system device is unsuccessful, the existence of other video system device candidates is confirmed. The method for selecting a communication medium is characterized in that the method returns to the establishment procedure of step 1, and has a procedure in which selection fails if there is no candidate. The communication medium selection method according to claim 4,
The wavelength multiplex service selection procedure <sound system + video system simultaneous selection request>
Select a voice route as a multi-branch service, and if the voice route selection fails, the selection will fail. If the voice route selection is successful, the procedure for checking the termination of the video route from the wavelength division multiplexing equipment (input side);
If the end of the video system route is other than the video system device, extract the video system device terminal, and then establish the video system device,
After establishing the video system, select the video system route. If it is successful, make a reservation in the audio system + video system and complete the selection. If it is unsuccessful, check for other route candidates. If there is a candidate, the procedure returns to the establishment procedure of the video system, and if there is no candidate, the audio system route is canceled and the selection fails.   A communication medium selection program, comprising: processing each unit according to claim 1 by a computer; and causing the computer to execute each procedure according to claims 2 to 14 to select a communication medium in a communication station.

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