JP2007166325A - Microwave radio communication system, automatic ip address assignment method, and method for downloading system configuration information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a microwave radio communication system capable of ensuring security and improving work efficiency of a maintenance person performing IP address assignment work. <P>SOLUTION: In an integrated supervision and control terminal 20, an equipment symbol rendering function portion 21 renders a symbol representing microwave radio communication equipment, and registers a MAC address. An automatic IP address assignment function portion 22 automatically assigns an IP address to the microwave radio communication equipment. A system configuration information download function portion 23 transmits identification information including the MAC address and the assigned IP address to the microwave radio communication equipment. The microwave radio communication equipment decides whether the identification information transmitted from the integrated supervision and control terminal includes information coincident with the stored MAC address, and stores the IP address being related to the MAC address when the information coincident with the MAC address exists. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a microwave radio communication system, an automatic IP address assignment method for a microwave radio communication system, which can improve the work efficiency of maintenance personnel who perform IP address assignment work on microwave radio communication devices in the system, The present invention also relates to a system configuration information download method for a microwave radio communication system.

  As a microwave radio communication system, there is a system including a plurality of microwave radio communication apparatuses. In order to monitor each microwave radio communication device, it is necessary to assign an identification address to each microwave radio communication device. As a method for assigning an identification address, there is a method in which an identification address (for example, a device ID) is registered in advance in each microwave radio communication device when the device is shipped.

  When assigning an identification address to each microwave radio communication device in advance, when adding a microwave radio communication device, the highest level microwave radio communication device (Root NE) that performs identification address management in the microwave radio communication system. In other words, it is common to input necessary information of the added microwave radio communication apparatus into the address management table (database) of the root control element (Root Network Element) or the supervisory control terminal through human hands. Therefore, it takes time to add a microwave radio communication apparatus.

  As a method for saving such trouble, there is a method of shipping after setting various parameters for a network device, although it is not a microwave radio communication apparatus (see, for example, Patent Document 1). A unique MAC address (device-specific address given at the time of manufacture) is assigned to the network device in advance, and the MAC address is read and read by a bar code reader attached to the parameter setting personal computer. An IP address that is an identification address is automatically set for the network device in accordance with the MAC address. Thereafter, the network device set with the IP address is shipped.

  On the other hand, when considering a system in which an identification address is not registered in the microwave radio communication apparatus in advance when the apparatus is shipped, a TCP / IP (Transmission Control / Internet Protocol) DHCP protocol (Dynamic) is used as a method for automatically assigning the identification address. A method using the Host Configuration Protocol is conceivable. When the DHCP protocol is used, the added microwave radio communication apparatus can obtain an IP address that is an identification address.

Japanese Patent Laying-Open No. 2004-287939 (paragraphs 0006-0033, FIG. 1)

  In the method described in Patent Document 1, in order to manage the system configuration of a network device, it is necessary to set an IP address that is an identification address of the device before shipping the device. Therefore, there is a problem that an IP address cannot be automatically set for a device added locally.

  Also, when using the DHCP protocol, if there is a request for an IP address, the IP address, which is the identification address, is distributed to the microwave radio communication apparatus that has requested the IP address. Even a radio wave communication apparatus can acquire an IP address, which has a security problem.

  The present invention is an invention for solving the above-described problems, and is a microwave radio communication system and microwave radio that can improve the work efficiency of maintenance personnel who perform IP address assignment work while ensuring security. An object of the present invention is to provide an IP address automatic assignment method for a communication system and a system configuration information download method for a microwave radio communication system.

  A microwave radio communication system according to the present invention includes a microwave radio communication including a plurality of microwave radio communication devices connected to each other via a wireless line or a wired line, and a monitoring control terminal that manages equipment of the microwave radio communication device. In this system, the supervisory control terminal draws a network configuration including symbols representing microwave radio communication devices, and device symbol drawing means for registering unique information for the drawn microwave radio communication device (for example, A device symbol drawing function unit 21), an IP address automatic assignment unit (for example, an IP address automatic assignment function unit 22) for assigning an IP address to the microwave radio communication device drawn by the device symbol drawing unit, and a micro Specific information and IP address automatic allocation means Identification information communication means (for example, system configuration information download function unit 23) for transmitting the identification information set in association with the IP address to the microwave wireless communication apparatus, The unique information storage means for storing the unique information of the microwave radio communication apparatus (for example, the own MAC address storage unit 16) and the identification information transmitted from the monitoring control terminal coincide with the unique information stored in the unique information storage means. When the unique information determining means (for example, the control unit 11) for determining whether or not the unique information is included and the unique information determining means determine that the matching unique information is included, the unique information in the identification information IP address storage means (for example, own IP address storage unit) for storing the associated IP address.

  In the microwave radio communication system, it is preferable that the IP address automatic assignment unit divides a network including a plurality of microwave radio communication devices into subnets.

  In the microwave radio communication system, it is preferable that the IP address automatic assignment unit divides the network into subnets using depth priority search. According to such a configuration, an optimal IP address can be assigned to the microwave radio communication device, and moreover, branching between the wireless section and the wired section of the microwave radio communication apparatus is often caused by hardware modification or the like. Even if it becomes a branched structure, it can cope.

  In the microwave radio communication system, the unique information storage means preferably stores a MAC address as unique information.

  An IP address automatic assignment method according to the present invention is an IP address automatic assignment method applied to a microwave radio communication system including a plurality of microwave radio communication devices connected by a LAN through a wireless line or a wired line. Draw a network configuration composed of symbols representing the wireless communication device, register unique information for the drawn microwave wireless communication device, assign an IP address to the drawn microwave wireless communication device, and When the address is assigned, the identification information set by associating the unique information of the microwave radio communication apparatus with the assigned IP address is transmitted to the microwave radio communication apparatus.

  In the automatic IP address assignment method, it is preferable to assign an IP address to a microwave radio communication apparatus after dividing a network including a plurality of microwave radio communication apparatuses into subnets using a depth-first search.

  In the system configuration information downloading method according to the present invention, a plurality of microwave wireless communication devices connected by a LAN via a wireless line or a wired line are connected to a plurality of microwave wireless communications from a monitoring control terminal that manages the equipment of the microwave wireless communication device. A system configuration information downloading method for downloading a system configuration of a network including a device, in which unique information is stored in a microwave radio communication device, the supervisory control terminal divides the network into subnets, and the supervisory control terminal Identification information including the unique information of the radio wave communication device and the IP address is transmitted to the microwave radio communication device, and a response is received from the microwave radio communication device storing the unique information that matches the unique information included in the identification information. When received, information that can identify the network system configuration is sent to the responding microwave radio communication device It is characterized by doing.

  In the system configuration information download method, it is preferable that the microwave radio communication apparatus stores the MAC address as unique information in advance.

  According to the present invention, the supervisory control terminal can perform device management and IP address management based on the unique information of the microwave radio communication apparatus in the same network, and the microwave radio communication apparatus is transmitted from the monitor control terminal. It is determined whether or not the identification information includes unique information that matches the unique information. If it is determined that unique information that matches the unique information is included, the identification information is associated with the unique information in the identification information. Since the IP address can be stored, the maintenance staff need only go to the installation location and start up the equipment sequentially when installing the microwave radio communication apparatus, thereby improving the work efficiency of the maintenance staff.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an example of the configuration of an integrated supervisory control terminal in a microwave radio communication system according to the present invention. The integrated monitoring control terminal 20 includes a device symbol drawing function unit 21, an IP address automatic allocation function unit 22, and a system configuration information download function unit 23.

  Specifically, the integrated monitoring control terminal 20 is realized by an information processing apparatus such as a workstation or a personal computer. In the present embodiment, the device symbol drawing function unit 21 has a display unit for arranging the system configuration, and the system configuration information download function unit 23 communicates with the microwave radio communication device 10 (shown in FIG. 2). A communication interface unit that can be used. The device symbol drawing function unit 21, the IP address automatic allocation function unit 22, and the system configuration information download function unit 23 are realized by the control unit of the integrated monitoring control terminal 20, for example. Specifically, the control unit is realized by a CPU of an information control device that operates according to a program.

  The device symbol drawing function unit 21 draws a system configuration including a plurality of microwave radio communication devices 10 on the display unit, and registers unique information of the microwave radio communication device 10. In this embodiment, as the unique information of the microwave radio communication apparatus 10, a MAC address (address read into the microwave radio communication apparatus at the time of shipment) is used.

  FIG. 2 is a block diagram illustrating an example of the configuration of the microwave radio communication apparatus 10. The microwave radio communication apparatus 10 includes a control unit 11 that controls the entire apparatus, a radio line unit (transmission / reception) 12, a wired line unit (transmission / reception) 13, and a branch wired line unit (transmission / reception). 14, a supervisory control terminal interface unit 15, a local MAC address storage unit 16, a system configuration table storage unit 17, a local IP address storage unit 18, and an antenna 19. When the microwave radio communication apparatus 10 is positioned as a master station, the microwave radio communication apparatus 10 is connected to the integrated monitoring control terminal 20 via the monitoring control terminal interface unit 15.

  In the own MAC address storage unit 16, the MAC address is registered at the time of shipment of the apparatus. The system configuration table storage unit 17 and the own IP address storage unit 18 are storage units of data automatically created by the integrated monitoring control terminal 20, and the system configuration table and IP address data are sent from the integrated monitoring control terminal 20. Save those data.

  The wireless line unit (transmission / reception) 12 is a circuit unit that performs wireless communication with other microwave wireless communication devices, and includes a wired line unit (transmission / reception) 13 and a branch wired line unit (transmission / reception). ) 14 is a circuit unit that performs wired communication with other microwave radio communication devices. The wireless line unit (transmission / reception) 12, the wired line unit (transmission / reception) 13, and the branching wired line unit (transmission / reception) 14 may have a multi-branch structure depending on hardware modifications.

  FIG. 3 is an explanatory diagram illustrating an example of a screen displayed on the display unit of the integrated monitoring control terminal 20. The device symbol drawing function unit 21 is connected to the display unit by one or a plurality of one-hop (two microwave radio communication devices 10 via a wireless line) according to the operation of the network administrator (or user). The symbol of the microwave radio communication apparatus 10 in the state of The device symbol drawing function unit 21 may arrange only the symbol of the microwave radio communication device 10 on the display unit in accordance with the operation of the network administrator.

  Next, the device symbol drawing function unit 21 displays the MAC address input screen of the microwave radio communication device 10. Further, when the network administrator inputs the MAC address of the microwave radio communication device installed on the local side (hosted by the integrated monitoring control terminal 20; that is, the local side includes all the microwave radio communication devices 10). The input MAC address is associated with the microwave radio communication apparatus. Further, in response to the network administrator clicking on the symbols of the two microwave radio communication devices 10, the device symbol drawing function unit 21 draws a wired line (Back-Back connection) on the display unit. In addition, when only the symbol of the microwave radio communication device 10 is arranged on the display unit, depending on the network administrator clicking on the symbols of the two microwave radio communication devices 10, a wired line or Draw a wireless line. Hereinafter, a case of drawing a wired line or a wireless line is taken as an example.

  FIG. 4 is an explanatory diagram illustrating another example of a screen displayed on the display unit of the integrated monitoring control terminal 20. FIG. 4 shows a configuration of a system connected by LAN through a wired line or a wireless line, and there are 21 microwave wireless communication apparatuses (that is, microwave wireless communication apparatuses NE1 to NE1 in the same network). An example in which NE21) is arranged on the screen is shown.

  The IP address automatic allocation function unit 22 has a network address input function and an IP address automatic allocation function based on depth-first search. The IP address automatic assignment function unit 22 is activated after the MAC address of the microwave radio communication device 10 is input to the device symbol drawing function unit 21 and a wired line or a wireless line is drawn.

  When the IP address automatic assignment function unit 22 is activated, the IP address automatic assignment function unit 22 displays a network address input screen on the display unit. The network administrator inputs a network address that may be assigned to the microwave radio communication apparatus 10 installed on the local side.

  Further, the IP address automatic assignment function unit 22 divides the network composed of all the microwave radio communication apparatuses 10 into the subnet by the depth-first search, assigns a network address permitted to each subnet, and assigns each microwave radio. An IP address is assigned to the symbol of the communication device 10. The IP address automatic assignment function unit 22 stores the MAC address and IP address of each microwave radio communication device 10 in the MAC address / IP address verification database.

  FIG. 5 is an explanatory diagram showing an example of contents stored in the MAC address / IP address verification database. The MAC address / IP address collation database includes broadcast results and device information acquisition results in addition to symbol numbers, MAC addresses and IP addresses corresponding to symbols on the network map screen.

  FIG. 6 is an explanatory diagram showing an example of the IP address automatic assignment function of the integrated monitoring control terminal 20. In the example shown in FIG. 6, in the system configuration shown in FIG. 4, the microwave radio communication device NE1 is a Root NE (leading device). If the subnet mask value of Root NE and Branch NE (the head device of each divided subnet) is 255.255.255.248 (the number of NEs allowed for one subnet is 6), the network is searched by depth-first search. Is divided into a plurality of subnets each including a maximum of 6 NEs.

  The subnet mask value is set to a small value for the sake of explanation, but in an actual apparatus, a subnet mask value that can increase the number of NEs of one subnet is set. By the depth-first search, one network is divided into subnets in the order of subnet 1 → subnet 2 → subnet 3 → subnet 4 → subnet 5 → subnet 6 → subnet 7 → subnet 8. Then, IP addresses are assigned in order from the head device of each subnet. The microwave radio communication apparatuses in each subnet are assigned IP addresses in order from the head IP address of the network address allowed for each subnet.

  The reason that subnet 2 and subnet 7 are composed of one terminal device is that the subnet is cut so that the depth priority search rule can be started with this subnet at the top when adding devices. Because. In this case, if the number of devices connected to subnet 2 or subnet 7 is increased, the IP address of the first device in subnet 2 or subnet 7 is left as it is, and the remaining IP address is continued for the new device. Can be assigned.

  The system configuration information download function unit 23 in the integrated monitoring control terminal 20 has a function of broadcasting the MAC address / IP address list and a function of acquiring the device information of the microwave radio communication device 10. The system configuration information download function unit 23 broadcasts a list of MAC addresses / IP addresses extracted from the MAC address / IP address collation database to all microwave wireless communication devices connected to the LAN via the communication interface unit. To do. The integrated monitoring control terminal 20 is connected to the microwave radio communication device of the master station via a communication interface unit, and the microwave radio communication device of the master station and other microwave radio communication devices Or it is LAN-connected via a wired line.

  If there is a response from the microwave radio communication apparatus corresponding to the MAC address after broadcast transmission, the broadcast result is changed from “NG” to “OK” as shown in FIG.

  The system configuration information download function unit 23 transmits a device information request to the microwave radio communication device whose broadcast result is “OK” by the device information acquisition function. If the device information can be acquired from the corresponding microwave radio communication device in response to the device information request, the device information acquisition result shown in FIG. 5 is changed from “NG” to “OK”.

  In the present embodiment, the MAC address of the microwave wireless communication device corresponding to the symbol of each microwave wireless communication device 10 arranged on the display unit of the integrated monitoring control terminal 20 is input to the integrated monitoring control terminal 20, and the MAC address Thus, device management of microwave radio communication in the microwave radio communication system is performed.

  Further, when the IP address automatic allocation function unit 22 uses the depth-first search as a method of dividing the network into subnets, it can cope with a case where the network configuration is a multi-branch configuration.

  Next, the operation will be described. 7 and 8 are flowcharts showing an example of a division method in which one network is divided into subnets by applying depth priority search in the microwave radio communication system according to the present invention.

  Here, the symbol name of the first device in the subnet is referred to as a branch symbol, and a division method using depth-first search is referred to as branch symbol automatic setting. The leading device in the subnet is called Branch NE. As a precondition, for example, a Branch NE is determined from the integrated monitoring control terminal 20 side, and another Branch NE is automatically set by application of depth priority search.

  The IP address automatic allocation function unit 22 sets the head of NE to Root NE (an apparatus directly connected to the integrated monitoring control terminal 20) (step S1).

  The IP address automatic allocation function unit 22 prepares and initializes a plurality of LIFO type (Last In First Out) stacks and the like. In this example, stack A = empty and stack B = empty are set. Further, the IP address automatic allocation function unit 22 sets the variable C = 0, the flag D = 0, and the queue E = empty (step S2). The extracted NE is stored in the queue E.

  The IP address automatic allocation function unit 22 confirms the subnet mask value of the top NE of the subnet. Then, the number of subnets is calculated from the subnet mask value, and the number of subnets is stored in the variable C (step S3).

  The IP address automatic allocation function unit 22 puts the top NE of the subnet in the stack A (step S4). The IP address automatic allocation function unit 22 extracts NE from the stack A (step S5). The IP address automatic allocation function unit 22 determines whether or not the flag D is 0 (step S6). If the flag D is 0, the NE taken out from the stack A is put into the queue E. Since the initial value of the flag D is 0, the IP address automatic allocation function unit 22 puts the NE extracted from the stack A into the queue E (step S7). Proceed to the process for checking the number of NEs in queue E.

  In the process of checking the number of NEs in the queue E, the IP address automatic allocation function unit 22 determines whether or not the variable C (number of subnets) is the same as the number of NEs that have been taken out (number of NEs in the queue E) (step S1). S14). If the number of NEs that have been extracted is smaller than the variable C, that is, if No (“>” (less)), the process proceeds to the history confirmation process of the extracted NE. In the history confirmation process of the extracted NE, the IP address automatic assignment function unit 22 determines whether the extracted NE is a NE visited in the past (step S16). Since it is not a NE that has visited in the past at first, the IP address automatic allocation function unit 22 determines whether there is a NE connected to the extracted NE (step S17). If there is no NE connected to the extracted NE, the process proceeds to step S18.

  Since there are NEs that are initially connected, the IP address automatic allocation function unit 22 adds all NEs that are connected to the NE to the stack A. When there are a plurality of NEs connected to the NE, the stack A is entered from the port with the low priority shown in FIG. FIG. 9 is an explanatory diagram showing a priority list of four ports. When the list shown in FIG. 9 is used, ports 4, 3, 2, and 1 are entered in the stack A in order from the port with the lowest priority. If the number of ports increases, ports can be added to the port priority list. Also, as an application example, the priority order can be made variable. If the number of NEs connected to the extracted NE is two or more, the NE that is the source of the multi-branch is stored in the stack B (step S19). Then, the process proceeds to step S21.

  The IP address automatic allocation function unit 22 determines whether the stack A is empty (step S21). If the stack A is not empty, the process returns to the process of retrieving NE from the stack A in step S5. By repeating this, the NE from the stack A is accumulated in the queue E. When the stack A is empty, the subnet is closed with the NE accumulated in the queue E. Then, stack A, stack B, variable C, and queue E are cleared (step S22), and a series of processing ends.

  In step S14, when the IP address automatic allocation function unit 22 determines that the variable C (number of subnets) is the same as the number of NEs that have been extracted (variable C = number of NEs that have been extracted), Close the subnet at the NE where it is located. The IP address automatic assignment function unit 22 sets the NE taken out last to a new Branch NE, and executes an initialization process for clearing the queue E (step S15). Then, the IP address automatic allocation function unit 22 returns to the original state and confirms the subnet mask value of the top NE of the subnet in step S3. The number of subnets determined by the subnet mask value is stored in variable C (step S3).

  If it is determined in step S16 that the extracted NE is a NE that has been visited in the past, the IP address automatic assignment function unit 22 determines whether there is an NE connected to the NE (step S18). That is, when the subnet is cut off at the terminal NE, the IP address automatic allocation function unit 22 determines whether there is no NE connected to the NE. If the IP address automatic allocation function unit 22 determines that there is an NE connected to the NE, the process proceeds to step S19.

  If it is determined that there is no NE connected to the NE, the IP address automatic assignment function unit 22 sets the flag D to 1 (step S20). Then, the process proceeds to step S21.

  In step S6, if the flag D is not 0 (flag D = 1), the IP address automatic assignment function unit 22 indicates that the connection destination immediately before the extracted NE exists in the queue E. It is determined whether or not there is (step S8). When the connection destination immediately before the extracted NE exists in the queue E, the IP address automatic allocation function unit 22 clears the flag D as an initialization process (step S9). Thereafter, the process proceeds to step S14.

  In step S8, when it is confirmed that the connection destination immediately before the extracted NE does not exist in the queue E, the IP address automatic allocation function unit 22 returns the NE extracted from the stack A to the stack A. , Close the subnet with the NE accumulated in the queue E. Further, the queue E and the flag D are cleared as initialization processing (step S10).

  Thereafter, the IP address automatic allocation function unit 22 determines whether or not the stack B is empty (step S11). When the stack B is empty, the stack A, the stack B, the variable C, and the queue E are cleared (step S12), and a series of processes is finished.

  If the stack B is not empty, the IP address automatic allocation function unit 22 takes out the NE from the stack B, discards the NE taken out from the stack B if no branch remains, and stack B until taking out the NE where the branch remains. The process of taking out NE from is repeated. The IP address automatic assignment function unit 22 sets the extracted NE (NE in which the branch remains) as Branch NE. At that time, if there are two or more branches that have not been followed, the NE taken out from the stack B is returned to the stack B (step S13). Further, when the control is executed according to the flowchart, for example, as shown in FIG. 6, one network is divided into a plurality of subnets.

  Next, the operation of the IP address automatic allocation function unit 22 will be specifically described with reference to the system configuration shown in FIGS. 4 and 6 as an example and with reference to the flowcharts of FIGS. As described above, FIG. 6 shows an example in which one network shown in FIG. 4 is divided into eight subnets. Further, since the processes described in the flowcharts of FIGS. 7 and 8 have already been described, the description may be simplified below.

  The IP address automatic assignment function unit 22 sets the microwave radio communication apparatus NE1 shown in FIG. 4 to Root NE (step S1). And the process of step S2-S7 is performed. In this case, NE1 enters stack A in step S4. In step S7, NE1 enters queue E.

  The IP address automatic allocation function unit 22 proceeds to the process of checking the number of NEs in the queue E in step S14. In this case, since the variable C is 6 and the number of NEs that have been taken out is 1 and is not the same, it is determined whether the NE has visited in the past (step S16). Since it is not a NE that has visited in the past at first, the IP address automatic allocation function unit 22 determines whether there is a NE connected to the extracted NE1 (step S17). Since only NE2 is connected to NE1, the IP address automatic assignment function unit 22 adds NE2 connected to NE1 to the stack A (step S19). The IP address automatic allocation function unit 22 determines whether the stack A is empty (step S21). Since NE2 is contained in the stack A, that is, it is not empty, the process returns to the process of extracting NE from the stack A in step S5. This completes the processing for NE1. Next, processing for NE2 is executed.

  The IP address automatic allocation function unit 22 extracts NE2 from the stack A (step S5). Then, the stack A becomes empty. Subsequently, processing in steps S6 and S7 is performed. After execution of the process of step S7, the queue E contains NE1 and NE2. The IP address automatic allocation function unit 22 proceeds to the process of checking the number of NEs in the queue E in step S14. Since the variable C is 6 and the number of NEs that have been extracted is 2 and is not the same, the process proceeds from step S14 to step S16. In step S16, it is determined that the extracted NE2 is not a NE visited in the past, and the IP address automatic allocation function unit 22 determines whether there is an NE connected to the extracted NE2 (step S17). Since only NE3 is connected to NE2, the IP address automatic assignment function unit 22 adds NE3 to the stack A (step S19). The IP address automatic allocation function unit 22 determines whether the stack A is empty (step S21). Since NE3 is contained in the stack A, the process returns to the process of extracting NE from the stack A in step S5. This completes the processing for NE2. Next, processing for NE3 is executed.

  The IP address automatic allocation function unit 22 extracts NE3 from the stack A (step S5). Then, the stack A becomes empty. Subsequently, processing in steps S6 and S7 is performed. After execution of the process in step S7, the queue E contains NE1, NE2, and NE3. The IP address automatic allocation function unit 22 proceeds to the process of checking the number of NEs in the queue E in step S14. Since the variable C is 6 and the number of NEs that have been taken out is 3 and not the same, the process proceeds to step S16. In step S16, it is determined that the extracted NE3 is not a NE visited in the past, and the IP address automatic assignment function unit 22 determines whether there is an NE connected to the extracted NE3 (step S17). Since only NE4 is connected to NE3, the IP address automatic assignment function unit 22 adds NE4 connected to NE3 to the stack A (step S19). The IP address automatic allocation function unit 22 determines whether the stack A is empty (step S21). Since NE4 is contained in the stack A, the process returns to the process of extracting NE from the stack A in step S5. This completes the process for NE3. Next, the process for NE4 is executed.

  The IP address automatic allocation function unit 22 extracts NE4 from the stack A (step S5). Then, the stack A becomes empty. Subsequently, processing in steps S6 and S7 is performed. After execution of the process of step S7, the queue E contains NE1, NE2, NE3, and NE4. The IP address automatic allocation function unit 22 proceeds to the process of checking the number of NEs in the queue E in step S14. Since the variable C is 6 and the number of NEs that have been taken out is 4, which is not the same, the process proceeds to step S16. In step S16, it is determined that the extracted NE4 is not a NE visited in the past, and the IP address automatic allocation function unit 22 determines whether there is an NE connected to the extracted NE4 (step S17). Since only NE5 is connected to NE4, the IP address automatic assignment function unit 22 adds NE5 connected to NE4 to the stack A (step S19). The IP address automatic allocation function unit 22 determines whether the stack A is empty (step S21). Since NE4 is contained in the stack A, the process returns to the process of extracting NE from the stack A in step S5. This completes the process for NE4. Next, the process for NE5 is executed.

  The IP address automatic allocation function unit 22 extracts NE5 from the stack A (step S5). Then, the stack A becomes empty. Subsequently, processing in steps S6 and S7 is performed. After execution of the process of step S7, the queue E contains NE1, NE2, NE3, NE4, and NE5. The IP address automatic allocation function unit 22 proceeds to the process of checking the number of NEs in the queue E in step S14. Since the variable C is 6 and the number of NEs that have been taken out is 5 and is not the same, the process proceeds to step S16. In step S16, it is determined that the extracted NE5 is not a NE visited in the past, and the IP address automatic assignment function unit 22 determines whether there is an NE connected to the extracted NE5 (step S17). Since NE6, NE8, and NE9 are connected to NE5, the IP address automatic assignment function unit 22 adds all NEs connected to NE5 to the stack A (step S19). When there are a plurality of NEs to be connected, as shown in FIG. Here, NE6, NE9, and NE8 are placed in the stack A in this order. Further, since there are two or more NEs connected to the extracted NE, the NE that is the source of the multi-branch is stored in the stack B. That is, NE5 is stored in the stack B. The IP address automatic allocation function unit 22 determines whether the stack A is empty (step S21). Since the stack A contains NE6, NE9, and NE8, the process returns to the process of taking out NE from the stack A in step S5. This completes the processing for NE5. The following processing is executed.

  The IP address automatic allocation function unit 22 extracts NE8 from the stack A (step S5). In the stack A, NE6 and NE9 remain. Subsequently, processing in steps S6 and S7 is performed. After execution of the processing of step S7, the queue E contains NE1, NE2, NE3, NE4, NE5, and NE8. The IP address automatic allocation function unit 22 proceeds to the process of checking the number of NEs in the queue E in step S14. Since the variable C is 6 and the number of NEs that have been extracted is 6, the IP address automatic allocation function unit 22 determines that the variable C (number of subnets) is the same as the number of NEs that have been extracted in step S14 (variable C = removed). The number of NEs already completed). The IP address automatic allocation function unit 22 closes the subnet with the NEs accumulated in the queue E (step S15). That is, the subnet 1 is formed as a group including NE1, NE2, NE3, NE4, NE5, and NE8. The IP address automatic allocation function unit 22 sets the NE 8 taken out last to a new Branch NE, and executes an initialization process for clearing the queue E. Then, the IP address automatic allocation function unit 22 returns to Step S3 and confirms the subnet mask value of the top NE of the subnet.

  Next, a method for determining the subnet 2 will be described. In step S3, the IP address automatic allocation function unit 22 checks the subnet mask value of the first NE of the subnet. In this example, the subnet mask value 255.255.255.248 is confirmed. Then, the number of subnets is calculated from the subnet mask value 255.255.255.248, and 6 is stored as the variable C (step S3). The IP address automatic assignment function unit 22 puts NE8, which is the first NE of the subnet, into the stack A (step S4). That is, the stack A contains NE6, NE9, and NE8.

  The IP address automatic allocation function unit 22 extracts NE8 from the stack A (step S5). In the stack A, NE6 and NE9 remain. The IP address automatic allocation function unit 22 determines whether or not the flag D is 0 (step S6). Subsequently, processing in steps S6 and S7 is performed. After execution of the process of step S7, NE8 enters queue E. The IP address automatic allocation function unit 22 proceeds to the process of checking the number of NEs in the queue E in step S14. Since the variable C is 6 and the number of NEs that have been extracted is 1 and is not the same, the process proceeds to step S16. In step S16, it is determined that the extracted NE8 is a NE visited in the past, and the IP address automatic assignment function unit 22 determines whether there is an NE connected to the extracted NE8 (step S18). Since there is no NE connected to NE8, flag D is set to 1 (step S20). Next, the IP address automatic allocation function unit 22 determines whether the stack A is empty (step S21). Since NE6 and NE9 are contained in the stack A, the process returns to the process of taking out NE from the stack A in step S5. This completes the process for NE8, and proceeds to the process for step S5.

  The IP address automatic allocation function unit 22 extracts NE9 from the stack A (step S5). NE 6 remains in the stack A. The IP address automatic allocation function unit 22 determines whether or not the flag D is 0 (step S6). Since the flag D is not 0 (flag D = 1), the IP address automatic allocation function unit 22 determines whether or not the connection destination immediately before the extracted NE 9 exists in the queue E (step S8). ). Since the connection destination NE5 immediately before NE9 does not exist in the queue E, the IP address automatic allocation function unit 22 returns the NE9 taken out from the stack A to the stack A, and the NE that has accumulated in the queue E. Close the subnet. That is, subnet 2 is formed as a group including NE8. Further, the queue E and the flag D are cleared (step S10). At this stage, the stack A contains NE6 and NE9.

  Thereafter, the IP address automatic allocation function unit 22 determines whether or not the stack B is empty (step S11). Since NE5 is contained in the stack B, the IP address automatic allocation function unit 22 takes out NE5 from the stack B, and discards NE5 if no branch remains. However, since NE5 is an NE in which a branch remains (see FIG. 6), the extracted NE5 is defined as a Branch NE. Further, since there are two or more branches that have not been followed (the branch to NE6 and the branch to NE9), NE5 is returned to the stack B.

  Furthermore, when the IP address automatic allocation function unit 22 executes control according to the flowcharts of FIGS. 7 and 8, subnets 3 to 8 can be created. As a result, one network shown in FIG. 6 can be divided into a plurality of subnets without human intervention, that is, automatically.

  FIG. 10 is a flowchart showing the operation of the integrated monitoring control terminal 20. The operation of the integrated monitoring control terminal 20 will be described with reference to FIG. 4 and FIG. The network administrator (or user) arranges the symbol of the microwave radio communication apparatus 10 on the display unit of the integrated monitoring control terminal 20. At the time of device symbol placement, the device symbol drawing function unit 21 displays a screen for registering the MAC address of each device, so the network administrator registers the MAC address. When the network administrator clicks two symbols, the device symbol drawing function unit 21 draws a wired line (Back-Back connection) or a wireless line (Step S101).

  The device symbol drawing function unit 21 displays a screen for registering network addresses to be allocated to all devices drawn on the display unit. On the screen, the network administrator inputs a network address (step S102). That is, one network address is input to determine a range of network addresses that can be used for one network. The device symbol drawing function unit 21 registers the input network address in the storage unit of the integrated monitoring control terminal 20, for example. In the case of the network illustrated in FIG. 6, for example, 172.18.0.0 is set as the network address and 255.255.0.0 is set as the subnet mask value.

  When the network address is registered, the IP address automatic assignment function unit 22 is activated. The IP address automatic assignment function unit 22 assigns subnets from the top in the order of Branch NE by the branch symbol automatic setting function (step S103). Subnets are assigned in the order of Root NE, followed by Branch NE by branch symbol automatic setting.

  The IP address automatic allocation function unit 22 divides the network address registered by the network administrator according to the contents of the subnet mask value of the top NE of each subnet (step S104). In the case of the network illustrated in FIG. 6, for example, the subnet mask value is set to 255.255.255.248 (NE number 6), so the network address is divided from the lowest number in the subnet. Since the subnet 1 has a network address of 172.1.8.0.0 and a subnet mask value of 255.255.255.248, the usable IP address is 172.18.0.1 to 172.1.8.0.6. Become. Since the subnet 2 has a network address of 172.1.8.0.8 and a subnet mask value of 255.255.255.248, the IP addresses that can be used are 172.18.0.9 to 172.18.0.14. Become. The subnet 3 has a network address of 172.18.0.16 and a subnet mask value of 255.255.255.248, so that the usable IP address is 172.18.0.17 to 172.18.0.22. Become. Similarly, IP addresses that can be used are set for subnet 4 to subnet 8 as well. A network address generated by division is called a subnet network address.

  The IP address automatic allocation function unit 22 assigns the IP address from the parent NE (Branch NE) to each NE in the order of NEs stored in the queue E from the young IP address of the subnet network address assigned to each subnet. Allocate (step S105).

  Then, the IP address automatic allocation function unit 22 creates the static system configuration information of each NE from the automatic IP address allocation (processing results of steps S103 to S105) (step S106).

  The IP address automatic allocation function unit 22 stores the allocated IP address in the MAC address / IP address verification database (step S107). As shown in FIG. 5, the MAC address / IP address collation database has columns of MAC address / IP address / broadcast result / device information acquisition result corresponding to the symbol number. The system configuration information download function unit 23 broadcasts the MAC address / IP address list to all the microwave radio communication apparatuses 10. And when a response is received from the microwave radio communication apparatus 10, the static system configuration information corresponding to the microwave radio communication apparatus 10 is transmitted, and the monitoring information of the microwave radio communication apparatus 10 is acquired and reflected on the screen. (Step S108). The monitoring information is alarm information and status information of the microwave radio communication apparatus 10.

  FIG. 11 is an explanatory diagram of an example of static NE configuration information of Root NE. FIG. 11 shows the root NE when the network address is 172.18.0.0 and the subnet mask value of Root NE / Branch NE which is the network example shown in FIG. 6 is 255.255.255.248. Static system configuration information is shown. The static system configuration information illustrated in FIG. 11 has columns of network address / subnet mask / default gateway corresponding to the divided subnet names. The static system configuration information of the other Branch NE is less than the static system configuration information of the Root NE, and the data content is such that subordinate routing information can be determined. That is, the static system configuration information is information that can specify the system configuration (at least the subnet system configuration) of the network including the plurality of microwave radio communication apparatuses 10.

  FIG. 12 is a sequence diagram showing an operation between the integrated monitoring control terminal 20 and each microwave radio communication apparatus 10. In the example illustrated in FIG. 12, a plurality of microwave wireless communication devices 10, that is, a wireless communication device 1, a wireless communication device 2, and a wireless communication device 3 are arranged in a network managed by the integrated monitoring control terminal 20. ing. Hereinafter, an allocation procedure to each wireless communication device will be described with reference to FIG.

  First, a LAN link between the integrated monitoring control terminal 20 and the wireless communication device 1 is established (step S201). It is assumed that each wireless communication device has a hardware structure in which a LAN connection link is established when the wireless communication device is connected to an adjacent wireless communication device by a wireless line or a wired line.

  The integrated monitoring control terminal 20 broadcasts and transmits a MAC address / IP address list (identification information set in association with a MAC address and an IP address) to all wireless communication devices (step S202). The MAC address / IP address list is a list obtained by extracting only the MAC address and IP address of the MAC address / IP address verification database shown in FIG.

  Each wireless communication device detects, as its own MAC address, a MAC address that matches the MAC address registered in its own MAC address storage unit 16 among the MAC addresses in the broadcast-transmitted MAC address / IP address list. For example, when the wireless communication device 1 detects its own MAC address from the transmitted MAC address / IP address list, the wireless communication device 1 stores the IP address corresponding to the registered MAC address in the own IP address storage unit 18, A response of normal reception is returned to the integrated monitoring control terminal 20 (step S203).

  When receiving the response from the wireless communication device 1, the integrated monitoring control terminal 20 updates the corresponding broadcast result in the MAC address / IP address verification database from NG to OK (step S204).

  Thereafter, the integrated monitoring control terminal 20 transmits the static system configuration information to the wireless communication device 1 (step S205). The static system configuration information is data of static system configuration information of Root NE shown in FIG.

  When the wireless communication device 1 receives the transmitted static system configuration information, it stores the static system configuration information in the system configuration table storage unit 17 and then returns a normal reception response to the integrated monitoring control terminal 20 ( Step S206). The integrated monitoring control terminal 20 transmits a device information request to the wireless communication device 1 (step S207).

  When receiving the device information request, the wireless communication device 1 transmits the device information to the integrated monitoring control terminal 20 (step S208).

  The wireless communication device 2 to the wireless communication device n operate in the same sequence (step 203 to step 208). As a result, the integrated monitoring control terminal 20 can acquire the device information of all microwave radio communication devices 10 drawn with symbols on the display unit of the integrated monitoring control terminal 20. Therefore, the integrated monitoring control terminal 20 can reflect the device information of all the microwave radio communication devices 10 on the display unit.

  According to the present embodiment, the integrated monitoring control terminal 20 is equipped with the device symbol drawing function unit 21, the IP address automatic allocation function unit 22, and the system configuration information download function unit 23. Device management based on the MAC address of the communication device and management of the IP address can be performed.

  The microwave radio communication apparatus 10 detects its own MAC address and stores the IP address and system configuration information transmitted from the integrated monitoring control terminal 20. Therefore, when the microwave radio communication device 10 is installed, the maintenance staff goes to the installation location and connects the devices in sequence, so that the IP address and system configuration information are automatically acquired from the integrated monitoring control terminal 20 and the microwave radio is connected. The communication device 10 can be put into an operating state. As a result, work efficiency of maintenance personnel can be improved.

  In addition, when installing the microwave radio communication device 10, it is not necessary to download the IP address assignment or system configuration information to the microwave radio communication device via a person, and erroneously download abnormal data to the microwave radio communication device. It is possible to avoid problems that the apparatus cannot be started up or that the integrated monitoring control terminal 20 cannot normally perform monitoring control due to an abnormal network connection between apparatuses due to duplicate registration of addresses.

  In addition, in order to investigate the cause when a problem occurs, it is possible to avoid a great amount of maintenance work for checking in detail the information downloaded by each microwave radio communication apparatus.

  Furthermore, since the depth priority search is applied as a method of dividing the network into subnets in the IP address automatic assignment function unit 22, optimum IP address assignment can be performed. Further, even when the branch of the wireless section or the wired section of the microwave radio communication apparatus has a multi-branch structure due to hardware modification or the like, it can be dealt with.

  The present invention is applicable to a microwave radio communication system having a plurality of microwave radio communication apparatuses.

It is a block diagram which shows an example of a structure of the integrated monitoring control terminal in the microwave radio | wireless communications system by this invention. It is a block diagram which shows an example of a structure of a microwave radio | wireless communication apparatus. It is explanatory drawing which shows an example of the screen displayed on the display part of an integrated monitoring control terminal. It is explanatory drawing which shows the other example of the screen displayed on the display part of an integrated monitoring control terminal. It is explanatory drawing which shows an example of the content memorize | stored in a MAC address / IP address collation database. It is explanatory drawing which shows an example of the IP address automatic allocation function of an integrated monitoring control terminal. It is a flowchart which shows an example of the division | segmentation method which applied the depth priority search which divides | segments one network by a subnet by this invention. It is a flowchart which shows an example of the division | segmentation method which applied the depth priority search which divides | segments one network by a subnet by this invention. It is explanatory drawing which shows four port priority lists. It is a flowchart which shows operation | movement of an integrated monitoring control terminal. It is explanatory drawing which shows an example of the static system structure information of Root NE. It is a sequence diagram which shows operation | movement between an integrated monitoring control terminal and each microwave radio | wireless communication apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Microwave radio | wireless communication apparatus 11 Control part 12 Wireless line part 13 Wired line part 14 Branched wired line part 15 Integrated monitoring control terminal interface part 16 Own MAC address preservation | save part 17 System configuration table preservation | save part 18 Own IP address preservation | save part 19 Antenna 20 Integrated Monitoring and Control Terminal 21 Device Symbol Rendering Function Unit 22 IP Address Automatic Allocation Function Unit 23 System Configuration Information Download Function Unit

Claims (8)

A microwave radio communication system comprising a plurality of microwave radio communication devices connected by a LAN via a radio line or a wired line, and a monitoring control terminal for performing device management of the microwave radio communication device,
The supervisory control terminal
Apparatus symbol drawing means for drawing a network configuration including symbols representing the microwave radio communication apparatus and registering unique information for the drawn microwave radio communication apparatus;
IP address automatic assigning means for assigning an IP address to the microwave radio communication device drawn by the device symbol drawing means;
Identification information communication means for transmitting identification information set by associating specific information of the microwave wireless communication apparatus with the IP address assigned by the IP address automatic assignment means to the microwave wireless communication apparatus. And
The microwave radio communication device is:
Unique information storage means for storing unique information of the microwave radio communication device;
Unique information determination means for determining whether or not the identification information transmitted from the monitoring control terminal includes unique information that matches the unique information stored in the unique information storage means;
And an IP address storage unit that stores an IP address associated with the specific information in the identification information when the specific information determination unit determines that the matching specific information is included. Wireless communication system. The microwave radio communication system according to claim 1, wherein the IP address automatic assignment means divides a network including a plurality of microwave radio communication devices into subnets. The microwave radio communication system according to claim 2, wherein the IP address automatic allocation means divides the network into subnets using depth-first search. The microwave radio communication system according to any one of claims 1 to 3, wherein the unique information storage unit stores a MAC address as the unique information. An IP address automatic allocation method applied to a microwave radio communication system including a plurality of microwave radio communication devices connected by a LAN through a radio line or a wired line,
Draw a network configuration consisting of symbols representing the microwave radio communication device,
Register unique information for the microwave radio communication device being drawn,
Assigning an IP address to the microwave radio communication device being drawn,
When an IP address is assigned, the identification information set by associating the unique information of the microwave radio communication device with the assigned IP address is transmitted to the microwave radio communication device. Automatic assignment method. The IP address automatic assignment method according to claim 5, wherein an IP address is assigned to the microwave wireless communication apparatus after a network including a plurality of microwave wireless communication apparatuses is divided into subnets using depth-first search. A plurality of microwave wireless communication devices connected by a LAN via wireless lines or wired lines has a network configuration including the plurality of microwave wireless communication devices from a monitoring control terminal that performs device management of the microwave wireless communication devices. A system configuration information download method for downloading,
In the microwave radio communication device, the unique information is stored,
The supervisory control terminal divides the network into subnets;
The supervisory control terminal transmits identification information including unique information of the microwave radio communication device and an IP address to the microwave radio communication device, and stores unique information that matches the unique information included in the identification information. When receiving a response from the microwave radio communication apparatus, information that can identify the system configuration of the network is transmitted to the responding microwave radio communication apparatus. The system configuration information downloading method according to claim 7, wherein the microwave radio communication apparatus stores a MAC address as unique information.

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