JP5861082B2 - Location management system, location management method, location management server, and location management server program - Google Patents

Description

  The present invention relates to a location management system, a location management method, a location management server, and a location management server program for registering the location of a communication terminal.

  Conventionally, as a technique for acquiring terminal position information, for example, a technique described in Patent Document 1 below is known.

  In the invention described in Patent Document 1, a network in which a terminal device and a location information management server are connected via a switching hub is constructed, and path information based on the MAC address and the corresponding port is stored in the switching hub. . The location information management server is provided with storage means that associates the ports of each switching hub with the location information of the switching hub or access point or terminal device connected thereto.

  Thus, in the invention described in Patent Document 1, the location information of the communication terminal is acquired for each MAC (Media Access Control) address from the relationship between the port of the switching hub and the location information.

JP 2007-318432 A

  By the way, when IP communication is performed by IPv6 (Internet Protocol Version 6), the number of terminals having an IPv6 address becomes very large. For this reason, the man-hour for managing the location information for the IPv6 address of the communication terminal becomes very large. However, in the invention described in Patent Document 1, since location information is managed for each MAC address, it is not assumed to manage location information of a large number of communication terminals like IPv6 addresses.

  In addition, since the data length of the IPv6 address is very long, it is enormous for the administrator to manually input information in which the IPv6 address of the communication terminal is associated with the location information.

  Therefore, the present invention has been proposed in view of the above-described circumstances, and a position management system, a position management method, and a position that can suppress the work man-hours of an administrator for registering a communication address and position information in association with each other It is an object to provide a program for a management server and a location management server.

  A location management system according to a first aspect of the present invention for solving the above-mentioned problem is connected to a communication terminal that transmits a communication packet including its own communication address, and to be able to communicate with the communication terminal, and the communication address of the communication terminal A position management server that stores the position information of the communication terminal in association with each other; a position information acquisition unit that acquires position information; and a position information transmission unit that transmits the acquired position information to the position management server. A location information sending terminal, wherein the location management server sets a communication condition of the communication terminal associating the location information sent from the location information sending terminal with a communication address included in a communication packet sent from the communication terminal. When the communication condition acquisition unit to be acquired and the communication state of the communication terminal satisfy the communication condition acquired by the communication condition acquisition unit, the communication condition of the communication terminal Characterized in that it comprises a location information registration section for registering in association with location information transmitted address and from the position information sending terminal.

  The location management system according to the first aspect of the present invention is the location management system according to the second aspect, wherein the location information sending terminal adds to the location information the location information of the communication terminal registered in the location management server. The information is added and sent to the location management server, and the location information registration unit of the location management server registers the location information, the communication address, and the additional information in association with each other. .

  In the position management system according to the first aspect of the present invention, the third aspect of the present invention relates to a communication condition transmission unit, wherein the position information transmission terminal transmits a communication condition of a communication terminal having a communication address associated with the position information. The communication condition acquisition unit of the location management server acquires the communication condition transmitted from the communication condition transmission unit of the location information transmission terminal.

  In the location management system according to the first invention, the fourth invention is characterized in that the communication condition and the communication state are data lengths of communication packets transmitted from the communication terminal.

  The position management system according to any one of the first to fourth inventions, wherein the fifth invention includes a position change detection means for detecting a connection change of the communication terminal, and a position change detection means for the communication terminal. And a notification means for notifying the connection change of the communication terminal when a connection change is detected.

  The position management system according to any one of the first to fourth inventions, wherein the sixth invention includes a position change detection means for detecting a connection change of the communication terminal, and a position change detection means for the communication terminal. When a connection change is detected, there is provided a position information temporary registration means for temporarily registering the position of the communication terminal whose connection has been changed as the position information of the relay device to which the communication terminal is connected.

  A position management method according to a seventh invention for solving the above-mentioned problem is a position management method for registering position information of a communication terminal in a position management server, wherein the position management server transmits the position information and the communication terminal. Acquiring a communication condition of the communication terminal that associates the communication address included in the communication packet, and the communication terminal sending a communication packet including its own communication address to the location management server; A position information sending terminal existing in the vicinity of the terminal acquires the position information and sends the acquired position information to the position management server; and the position management server indicates that the communication state of the communication terminal is the communication When the condition is satisfied, the communication address transmitted from the communication terminal and the position information transmitted from the position information transmission terminal are associated with each other and stored in the storage unit. Characterized by a step of.

  A position management server according to an eighth aspect of the present invention for solving the above-mentioned problem is communicably connected to a communication terminal that transmits a communication packet including its own communication address and a position information transmission terminal that acquires and transmits the position information. A location information storage unit that stores the communication address of the communication terminal and the location information of the communication terminal in association with each other, the location information sent from the location information sending terminal, and the communication A communication condition acquisition unit that acquires a communication condition for associating a communication address included in a communication packet transmitted from the terminal, and a communication state of the communication terminal that satisfies the communication condition acquired by the communication condition acquisition unit A location information registration unit that associates the communication address of the communication terminal with the location information sent from the location information sending terminal and registers it in the location information storage unit. And wherein the Rukoto.

  The program of the location management server according to the ninth invention that solves the above problem is capable of communicating with a communication terminal that transmits a communication packet including its own communication address and a location information transmission terminal that acquires and transmits the location information. A location management server connected to the location management server, wherein the location management server stores the communication address of the communication terminal and the location information of the communication terminal in association with each other, and the location information transmission A communication condition acquisition unit that acquires a communication condition for associating position information transmitted from a terminal with a communication address included in a communication packet transmitted from the communication terminal; and a communication state of the communication terminal is the communication condition acquisition unit When the communication condition acquired by the above is satisfied, the communication address of the communication terminal is associated with the position information transmitted from the position information transmission terminal. To function as a location information registration section that registers the position information storage unit.

  According to the present invention, when location information is transmitted from the location information sending terminal to the location management server and the communication state of the communication terminal satisfies the communication condition, the communication address of the communication terminal and the location information are registered in association with each other. it can. Thereby, according to this invention, the man-hour of the manager for registering a communication address and positional information in association with each other can be suppressed.

It is a block diagram which shows the whole structure of the position management system shown as one Embodiment of this invention. In the position management system shown as one Embodiment of this invention, it is a block diagram which shows the whole structure when a several communication terminal is connected to a position management server. In the position management system shown as one Embodiment of this invention, it is a figure which shows the relationship between an administrator and the data length of a ping packet. In the position management system shown as one Embodiment of this invention, it is a figure which shows the data length of the ping packet for every administrator which is a communication condition. In the position management system shown as one Embodiment of this invention, it is a sequence diagram in which a position management server registers position information. It is a block diagram which shows the internal structure of the position management server in the position management system shown as one Embodiment of this invention, a communication terminal, and a positional information transmission terminal. 5 is a flowchart showing a processing procedure for registering position information by a position management server in the position management system shown as an embodiment of the present invention. In the location management system shown as one Embodiment of this invention, it is a sequence diagram which transmits the registration result of a location information to a location information sending terminal. In the position management system shown as one Embodiment of this invention, it is a block diagram which shows the whole structure of what transmits the image of a communication terminal as additional information from a position information transmission terminal to a position management server. In the position management system shown as one Embodiment of this invention, it is a block diagram which shows the structure containing a relay apparatus. In the position management system shown as one Embodiment of this invention, it is a block diagram which shows the internal structure of a relay apparatus. In the position management system shown as one Embodiment of this invention, it is a block diagram which shows the other internal structure of a position management server. In the position management system shown as one Embodiment of this invention, it is a sequence diagram which shows operation | movement of a communication terminal, a relay apparatus, and a position management server when a new communication terminal is connected to a network.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The position management system shown as an embodiment of the present invention is configured as shown in FIG. 1, for example. The location management system includes a location management server 1, a communication terminal 2, and a location information transmission terminal 3. In this position management system, the position management server 1 can communicate with a large number of communication terminals 2 and can communicate with one or a plurality of position information transmission terminals 3. Yes. The communication terminal 2 and the location management server 1 may be connected via a LAN (Local Area Network) or may be connected via a WAN (Wide Area Network).

  In such a location management system, the communication terminal 2 sends a ping packet to the location management server 1. On the other hand, the position information transmission terminal 3 transmits a position transmission mail to the position management server 1. Then, the location management server 1 associates the IPv6 address stored in the ping packet with the location information included in the location transmission mail and registers it in the storage unit 1a.

  In such a position management system, a communication condition indicating the communication state of the communication terminal 2 for the position management server 1 to register the IPv6 address and the position information in association with each other is set. This communication condition is set as a data length of a ping packet transmitted from the communication terminal 2 to the location management server 1 as shown in FIG. In this embodiment, the data length of the ping packet is used as the communication condition. However, the present invention is not limited to this, and other communication conditions may be used. For example, as another communication condition, the service type (Type of Service) value of the IP header at the time of sending a ping packet may be changed to a specific value other than 0. Accordingly, the same effect can be obtained by using a value in which the service type of the IP header when sending the ping packet is set in advance in the same manner as the data length of the ping packet.

  For example, the data length of the ping packet transmitted from the communication terminal 2a is set to Na bytes, the data length of the ping packet transmitted from the communication terminal 2b is set to Nb bytes, and the data length of the ping packet transmitted from the communication terminal 2c is set to Nc bytes. Yes. Further, as shown in FIG. 3, the position management server 1 registers the relationship between the data length of the ping packet and the manager. For example, the administrator A manages the communication terminal 2a of a ping packet having a data length of Na bytes. The communication terminal 2b with a ping packet having a data length of Nb bytes is managed by the administrator B. The communication terminal 2c with a ping packet having a data length of Nc bytes is managed by the administrator C.

  The data length of this ping packet is, for example, as shown in FIG. Unlike the normal ping packet data length, the communication terminal 2 whose location information is registered by the location information sending terminal 3 generates a ping packet with a data length that is not normally used. The data length of a normal ping packet is 32 bytes. On the other hand, the data length of the ping packet transmitted from the communication terminal 2 that registers the position information in the position management server 1 is significantly different from that of a normal ping packet, for example, 1000 bytes or more.

  For example, in the communication terminal 2a to which the position information transmission terminal 3a owned by the manager A transmits the position information, the data length of the ping packet is set to 1000 bytes. In the communication terminal 2b to which the position information transmission terminal 3b held by the administrator B transmits the position information, the data length of the ping packet is set to 1010 bytes. In the communication terminal 2c to which the position information sending terminal 3c held by the administrator C transmits the position information, the data length of the ping packet is set to 1020 bytes.

  As a result, the location management server 1 registers the location information transmitted from the location information transmission terminal 3a held by the administrator A in association with the IPv6 address stored in the ping packet having a data length of Na bytes. Similarly, the location management server 1 registers the location information transmitted from the location information transmission terminal 3b held by the administrator B in association with the IPv6 address stored in the ping packet having a data length of Nb bytes. Similarly, the location management server 1 registers the location information transmitted from the location information transmission terminal 3c held by the administrator C in association with the IPv6 address stored in the ping packet having a data length of Nc bytes.

  Thus, the location management system can set the data length of the ping packet transmitted from the communication terminal 2 as the communication condition, and can associate the IPv6 address of the communication terminal 2 with the location information based on the communication condition. .

  Specifically, as shown in FIG. 5, the location information transmission terminal 3 transmits a location transmission mail S <b> 2 to the location management server 1. After that, when the communication terminal 2 transmits the ping packet S1, the location management server 1 can register the location information of the communication terminal 2 in association with the IPv6 address.

  The position management server 1, the communication terminal 2, and the position information transmission terminal 3 in such a position management system have functional units as shown in FIG. 6, for example.

  The communication terminal 2 includes a packet transmission unit 21 that transmits a communication packet. The packet transmission unit 21 transmits a communication packet including its own communication address. At this time, the packet transmission unit 21 stores the IPv6 address assigned as the communication address in the communication packet.

  In particular, the packet transmission unit 21 performs processing according to ICMP (Internet Control Message Protocol) and sends a ping packet to the location management server 1. At this time, the packet transmission unit 21 sets the data length of the ping packet to a data length that is significantly different from a preset normal ping packet.

  Note that the process of transmitting a ping packet having a data length longer than the normal data length may be performed only when the position information is registered in the position management server 1. For example, a ping packet having a data length longer than the normal data length is transmitted only when the communication terminal 2 is operated by the administrator, and the position information transmission terminal 3 sets the data length of the ping packet as a communication condition to the position management server. 1 to send. Then, after the position information of the communication terminal 2 is registered in the position management server 1, the setting of the communication terminal 2 is changed so as to transmit a ping packet having a normal data length.

  The location information sending terminal 3 includes a location information obtaining unit 31 that obtains location information, a location information sending unit 32 that sends the obtained location information to the location management server 1, and a communication condition sending unit 33. The position information transmission terminal 3 is constituted by, for example, a mobile phone with a GPS (Global Positioning System) function or various mobile terminals.

  The position information acquisition unit 31 is realized by a GPS function, for example, and analyzes a GPS signal received from a GPS satellite. Accordingly, the position information acquisition unit 31 acquires the current position of the position information transmission terminal 3 as position information.

  The communication condition sending unit 33 transmits the communication condition to the location management server 1. The communication condition transmission unit 33 transmits the data length of the ping packet transmitted from the communication terminal 2 described above as the communication condition. The location information transmission unit 32 transmits the location information acquired by the location information acquisition unit 31 to the location management server 1 in response to an operation of the administrator on the location information transmission terminal 3.

  The communication conditions sent out by the communication condition sending unit 33 may be stored in advance in the position information sending terminal 3 or may be inputted to the position information sending terminal 3 by the operation of the administrator. . For example, when the communication terminal 2 for registering position information is assigned to each manager, the communication condition may be stored in the position information sending terminal 3 in advance. Further, the administrator may input communication conditions written in the communication terminal 2. Further, the administrator may set the data length of the ping packet of the communication terminal 2 and transmit the set data length of the ping packet from the position information transmission terminal 3 to the position management server 1.

  The operation of transmitting the position information and the communication condition by the position information transmission unit 32 and the communication condition transmission unit 33 is realized by the mail function of the position information transmission terminal 3. The location information sending terminal 3 creates a location transmission mail including location information and communication conditions with the destination as the address of the location management server 1 by the mail function, and transmits the location transmission email to the location management server 1.

  Such a location information sending terminal 3 is carried by the administrator in the vicinity of the communication terminal 2 when the administrator registers the location information of the communication terminal 2 in the location management server 1. Then, the location information sending terminal 3 acquires the location information according to the operation of the administrator, and transmits the location information and the communication condition as data to the location management server 1.

  The location management server 1 is communicably connected to the communication terminal 2 and stores the IPv6 address of the communication terminal 2 and the location information of the communication terminal 2 in association with each other. The location management server 1 includes a communication unit 11 including a reception buffer, a communication condition acquisition unit 12, a location information registration unit 13, and a location information storage unit 14 corresponding to the storage unit 1a. The location management server 1 is a computer including a storage unit, a communication I / F circuit, a CPU, and a program, and the CPU executes the program. Thereby, the program of the location management server 1 performs an operation described by a flowchart and the like described later, and registers the IPv6 address of the communication terminal 2 and the location information in association with each other.

  The communication unit 11 can exchange communication packets with the communication terminal 2 via a communication network such as a LAN or WAN. The communication unit 11 can exchange communication packets with the position information transmission terminal 3 via a mobile communication network or the like. The communication unit 11 supplies the communication packet received from the communication terminal 2 and the position information transmission terminal 3 to the communication condition acquisition unit 12.

  The communication condition acquisition unit 12 acquires a position transmission mail transmitted from the position information transmission terminal 3 via the communication unit 11. The communication condition acquisition unit 12 acquires a communication condition included in the acquired position transmission mail. This communication condition is a communication condition of the communication terminal 2 that associates the position information transmitted from the position information transmission terminal 3 with the communication address included in the communication packet transmitted from the communication terminal 2. This communication condition is, for example, the data length of the ping packet as shown in FIG.

  The position information registration unit 13 receives the position transmission mail transmitted from the position information transmission terminal 3 via the communication unit 11. The location information registration unit 13 refers to the communication condition acquired by the communication condition acquisition unit 12. The position information registration unit 13 determines whether the communication state (ping packet) of the communication terminal 2 satisfies the communication condition. When the communication state of the communication terminal 2 satisfies the communication condition, the position information registration unit 13 registers the IPv6 address of the communication terminal 2 and the position information transmitted from the position information transmission terminal 3 in association with each other. This registration process is performed by storing the position information and the IPv6 address in association with each other in the position information storage unit 14.

  The location management server 1 operates according to a processing procedure as shown in FIG. 7, for example.

  First, the location management server 1 receives the location transmission mail transmitted from the location information sending terminal 3 by the communication unit 11 in step ST1.

  Next, in step ST2, the location management server 1 uses the communication unit 11 to extract location information and communication conditions from the location transmission mail received in step ST1. The communication condition is supplied to the communication condition acquisition unit 12. The position information is supplied to the position information registration unit 13.

  Next, the location management server 1 extracts the access log of the ping packet by the location information registration unit 13 in step ST3.

  Next, in step ST4, the location management server 1 refers to the access log that received the ping packet by the location information registration unit 13 and received a ping packet that matches the data length of the ping packet as a communication condition. Determine whether. If a ping packet having a data length that matches the communication conditions is recorded in the access log, the process proceeds to step ST5.

  Next, in step ST5, the location management server 1 causes the location information registration unit 13 to extract the IPv6 address included in the ping packet detected in step ST4.

  Next, in step ST7, the location management server 1 causes the location information registration unit 13 to associate the IPv6 address extracted in step ST5 with the location information acquired in step ST1 and store it in the location information storage unit 14. .

  Next, in step ST8, the location management server 1 returns a mail describing that the registration is completed by associating the location information with the IPv6 address of the communication terminal 2 in the location information storage unit 14, and returns it to the location information sending terminal 3. The process is terminated.

  On the other hand, if there is no ping packet in the access log that matches the communication condition included in the location transmission mail in step ST4, the process proceeds to step ST6. In step ST6, the location management server 1 transmits an error mail describing that there is no ping packet that matches the communication condition in the access log and that the location information cannot be registered in association with the IPv6 address.

  A sequence including a process of transmitting a mail describing the completion of registration is as shown in FIG. The location management server 1 can make the administrator recognize the success or failure of registration by sending the registration result from the location management server 1 as shown in FIG. Therefore, when the location information of the communication terminal 2 is not registered in the location management server 1, it is possible to retry such as sending a location transmission mail from the location information sending terminal 3 to the location management server 1 again. Information can be registered.

  As described above, according to this location management system, the IPv6 address and location information of the communication terminal 2 in a communication state matching the communication conditions can be registered in association with each other. Thereby, according to this position management system, the man-hour of the administrator for registering a communication address and position information in association with each other can be suppressed. Specifically, the administrator holds the position information transmission terminal 3 and acquires the position information near the communication terminal 2 by GPS, and inputs the communication conditions by the position information transmission terminal 3.

  Therefore, according to this location management system, even if a large number of communication terminals 2 to which IPv6 addresses are assigned are installed, the man-hours required to register the location of each communication terminal 2 can be suppressed. In addition, according to this location management system, it is possible to avoid the complicated work of inputting a long IPv6 address without having to input the IPv6 address of the communication terminal 2 by the administrator.

  Further, according to this position management system, since the communication condition is transmitted to the position management server 1 by the position information transmission terminal 3, the communication condition can be determined by the administrator. Thereby, according to this position management system, it is possible to register position information with a small number of man-hours while minimizing changes in communication conditions.

  Furthermore, according to this location management system, since the data length of the ping packet is used as the communication condition, the communication condition for associating the location information with the IPv6 address can be easily set in the communication terminal 2. Further, the data length of the ping packet different from the data length of the normal ping packet can be clearly set, and the IPv6 address and the position information can be surely associated and registered by the position management server 1. Therefore, according to this location management system, the location information of the communication terminal 2 can be registered by a plurality of managers by finely setting communication conditions within the range of the data length of a ping packet that is not normally used. Can do.

  In addition, as shown in FIG. 9, the location management system specifies the communication terminal 2 registered in the location management server 1 in the location information of the location transmission mail transmitted from the location information sending terminal 3 to the location management server 1. Additional information may be added. On the other hand, the location management server 1 registers the location information, the IPv6 address, and the additional information in association with each other when the data length of the ping packet matches the communication condition.

  The additional information is not particularly limited as long as it identifies the communication terminal 2. Examples of the additional information include an image of the communication terminal 2 and an image representing the installation position of the communication terminal 2. When the image of the communication terminal 2 is used, the position information transmission terminal 3 has a camera function and takes an image of the communication terminal 2 by the operation of the administrator. Then, the position information sending terminal 3 adds the image of the communication terminal 2 as additional information to the position information and the communication conditions, and transmits to the position management server 1. Thereby, the image which identifies the communication terminal 2 can also be shown to the administrator etc. who confirm the IPv6 address and position information of the communication terminal 2 registered in the position management server 1.

  According to such a position management system, for example, additional information for specifying the communication terminal 2 such as image information of an overview of the communication terminal 2 in the building is transmitted simultaneously with the position information and communication conditions. Thereby, this position management system can make it easy to specify the communication terminal 2 at the site based on the contents registered in the position management server 1.

  Next, in the above-described position management system, what can be dealt with when a connection change of the communication terminal 2 is detected will be described. This location management system tracks and automatically registers location information when the communication terminal 2 moves. In this location management system, the communication terminal 2 is used semi-fixed and is moved with low frequency.

  In this location management system, routers 4A and 4B and a border router 5 as relay devices are provided between the location management server 1 and the communication terminal 2 as shown in FIG. These routers 4A and 4B and the border router 5 function to delimit the boundaries of each network. That is, the communication terminal 2 can communicate with a terminal of another network via the router.

  The relay device 4 as the routers 4A and 4B has a function as shown in FIG. 11 in addition to the original function of relaying packets. The relay device 4 includes a position change detection unit 41 and a position information transmission unit 42. In the present embodiment, a router is shown as the relay device 4. However, the present invention is not limited to this, and may be an L2 switch or the like, or both a router and an L2 switch.

  The position change detection unit 41 detects the communication terminal 2 connected to the relay device 4. For example, the position change detection unit 41 receives the MAC address of the communication terminal 2 when the communication terminal 2 is newly connected to the network. Then, the position change detection unit 41 creates a list table of MAC addresses connected to the relay device 4. When the MAC address is transmitted and the MAC address is not registered in the MAC address list table, the position change detection unit 41 recognizes that the communication terminal 2 is a new terminal. In addition, not only a MAC address but ID which can identify the communication terminal 2 may be sufficient.

  When the position change detection unit 41 detects a new terminal, the position information transmission unit 42 transmits a new terminal notification including its own position information to the position management server 1. The position information of the relay device 4 is, for example, latitude / longitude information set in advance when the relay device 4 is installed.

  As shown in FIG. 12, in addition to the communication terminal 2 and the position information sending terminal 3, the position management server 1 is connected to the relay device 4 so that communication is possible. The location management server 1 includes a location change detection unit 15, a temporary location information registration unit 16, and an administrator notification unit 17 in addition to the above-described units.

  The position change detection unit 15 is supplied with the new terminal notification transmitted from the relay device 4 via the communication unit 11. The position change detection unit 15 detects a position change (connection change) of the communication terminal 2 when a new terminal notification is supplied.

  When the position change detection unit 15 detects a position change (connection change) of the communication terminal 2, the temporary position information registration unit 16 relays the position of the communication terminal 2 changed in connection to the communication terminal 2. Temporarily registered as position information of the device 4. At this time, the temporary location information registration unit 16 changes the location information of the communication terminal 2 stored in the location information storage unit 14 to the location information of the relay device 4 included in the new terminal notification.

  The administrator notification unit 17 notifies the administrator that a new terminal notification has been detected by the position change detection unit 15. Moreover, it is desirable that this notification includes a request for acquiring the accurate position of the communication terminal 2. The administrator notification unit 17 may display, for example, that the connection of the communication terminal 2 has been changed on a display viewed by the administrator, may be output in a voice, and may be displayed on a portable terminal held by the administrator. You may notify by e-mail etc. It is desirable that the manager notification unit 17 also notifies information about which relay device 4 the new communication terminal 2 is connected to and information on the location of the relay device 4.

  In such a location management system, for example, it is assumed that the communication terminal 2 connected to the router 4A is moved and the installation location is changed, so that it is connected to a network including the router 4B. In this case, the location management system operates as shown in FIG.

  First, when the communication terminal 2 is connected to a new network, the communication terminal 2 transmits a packet S11 for starting communication to the network. This communication start packet S11 is received by the relay device 4 in the network.

  When receiving the communication start packet S11, the relay device 4 detects that a new communication terminal 2 is connected to its own network, and blocks external communication of the communication terminal 2. The relay device 4 transmits a new terminal notification S12 to the location management server 1. The new terminal notification S12 includes the position information of the relay device 4 as described above.

  When receiving the new terminal notification S12 transmitted from the relay device 4, the location management server 1 notifies the administrator to that effect. Further, the location management server 1 provisionally registers the location of the relay device 4 as the location of the communication terminal 2 whose connection has been changed. The location management server 1 transmits to the relay device 4 a response packet S13 indicating that the location information (database) has been updated. Thereafter, communication of the communication terminal 2 is permitted by the relay device 4, and various data S14 can be communicated.

  As described above, according to this position management system, when a change in the connection of the communication terminal 2 is detected, the change in the connection of the communication terminal is notified. It is possible to notify the administrator by analogizing the position change of 2. Thereby, it can respond so that the position of the communication terminal 2 to which the connection was newly changed by the manager early may be updated.

  That is, the administrator acquires the position information of the communication terminal 2 whose position has been changed by carrying the position information transmission terminal 3 after being notified of the position change of the communication terminal 2 and transmits it to the position management server 1. . Thereafter, a ping packet is transmitted from the communication terminal 2 to the location management server 1 so that the location management server 1 can register accurate location information of the communication terminal 2 whose connection has been changed.

  Further, according to this position management system, since the position of the communication terminal 2 whose connection has been changed is provisionally registered as the position information of the relay device 4 to which the communication terminal 2 is connected, until the administrator sets the correct position information, Position information having a certain degree of accuracy can be temporarily registered. Thus, the position management system allows the administrator to recognize that the connection of the communication terminal 2 near the position information of the temporarily registered relay device 4 has been changed, and then register the correct position information of the communication terminal 2. It is possible to go to the communication terminal 2 by carrying the position information transmission terminal 3.

  Further, according to this position management system, the position information of the communication terminal 2 is normally updated manually. However, if the number of moved communication terminals 2 increases, update errors and troubles increase, but the position update is performed. By automating the process, mistakes and labor can be reduced.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it is possible to change.

DESCRIPTION OF SYMBOLS 1 Position management server 2 Communication terminal 3 Position information transmission terminal 4 Relay apparatus 11 Communication part 12 Communication condition acquisition part 13 Position information registration part 14 Position information storage part 15 Position change detection part 16 Temporary position information registration part 17 Manager notification part 21 Packet transmission unit 31 Position information acquisition unit 32 Position information transmission unit 33 Communication condition transmission unit 41 Position change detection unit 42 Position information transmission unit

Claims (8)

A communication terminal that sends out a communication packet including its own communication address;
A location management server that is communicably connected to the communication terminal and stores the communication address of the communication terminal and the location information of the communication terminal in association with each other;
A location information sending terminal having a location information obtaining unit for obtaining location information, and a location information sending unit for sending the obtained location information to the location management server,
The location management server is a communication condition acquisition unit that acquires communication conditions of the communication terminal that associates position information transmitted from the position information transmission terminal with a communication address included in a communication packet transmitted from the communication terminal; A position for registering the communication address of the communication terminal and the position information transmitted from the position information transmission terminal in association with each other when the communication state of the communication terminal satisfies the communication condition acquired by the communication condition acquisition unit An information registration unit ,
The location management system, wherein the communication condition and the communication state correspond to a data length of a communication packet transmitted from the communication terminal or a service type value of an IP header . The location information sending terminal adds to the location information additional information for specifying location information of a communication terminal registered in the location management server, and sends the location information to the location management server.
The location management system according to claim 1, wherein the location information registration unit of the location management server registers the location information, the communication address, and the additional information in association with each other. The location information sending terminal includes a communication condition sending unit for sending a communication condition of a communication terminal having a communication address associated with the location information,
The position management system according to claim 1, wherein the communication condition acquisition unit of the position management server acquires the communication condition transmitted from the communication condition transmission unit of the position information transmission terminal. Position change detecting means for detecting a connection change of the communication terminal;
When it detects a connection change of the communication terminal by the position change detection means, to any one of claims 1 to 3, characterized in that it comprises a notifying means for notifying the connection change of the communication terminal The location management system described. Position change detecting means for detecting a connection change of the communication terminal;
Position information temporary registration means for temporarily registering the position of the communication terminal whose connection has been changed as position information of a relay device connected to the communication terminal when the position change detection means detects a connection change of the communication terminal; The position management system according to any one of claims 1 to 3 , further comprising:
A location management method for registering location information of a communication terminal in a location management server,
The location management server acquires communication conditions of the communication terminal that associates location information with a communication address included in a communication packet transmitted from the communication terminal,
The communication terminal sending a communication packet including its communication address to the location management server;
A position information sending terminal existing in the vicinity of the communication terminal obtains position information and sends the obtained position information to the position management server;
When the communication status of the communication terminal satisfies the communication condition, the location management server associates the communication address transmitted from the communication terminal with the location information transmitted from the location information sending terminal in the storage unit. possess and storing,
The location management method, wherein the communication condition and the communication state correspond to a data length of a communication packet transmitted from the communication terminal or a service type value of an IP header . A location management server communicably connected to a communication terminal that sends a communication packet including its own communication address and a location information sending terminal that acquires and sends location information;
A position information storage unit for storing the communication address of the communication terminal and the position information of the communication terminal in association with each other;
A communication condition acquisition unit that acquires a communication condition for associating position information transmitted from the position information transmission terminal with a communication address included in a communication packet transmitted from the communication terminal;
When the communication state of the communication terminal satisfies the communication condition acquired by the communication condition acquisition unit, the communication information of the communication terminal is associated with the position information transmitted from the position information transmission terminal, and the position information A location information registration unit to be registered in the storage unit ,
The location management server, wherein the communication condition and the communication state correspond to a data length of a communication packet transmitted from the communication terminal or a service type value of an IP header . A program of a location management server communicably connected to a communication terminal that sends out a communication packet including its own communication address and a location information sending terminal that acquires and sends location information;
The location management server;
A position information storage unit for storing the communication address of the communication terminal and the position information of the communication terminal in association with each other;
A communication condition acquisition unit that acquires a communication condition for associating position information transmitted from the position information transmission terminal with a communication address included in a communication packet transmitted from the communication terminal;
When the communication state of the communication terminal satisfies the communication condition acquired by the communication condition acquisition unit, the communication information of the communication terminal is associated with the position information transmitted from the position information transmission terminal, and the position information Function as a location information registration unit to be registered in the storage unit ,
The location management server program, wherein the communication condition and the communication state correspond to a data length of a communication packet transmitted from the communication terminal or a service type value of an IP header .

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