JP6149519B2 - Communication device and communication program - Google Patents

Description

  The present invention relates to a communication device and a communication program.

  As a method of selecting one access point from a plurality of access points, for example, in Patent Document 1 below, information necessary for connection is described in data configured in a markup language, and the information is based on the information. A communication device and a communication method for specifying a communication path to be used for communication are known.

JP 2006-31125 A

  The communication device should extract an access point that is more likely to be connected than the conventional technology from a plurality of access points based on the information related to the previous connection using the access point between the communication device and the external device. With the goal.

  The communication device according to claim 1, an IP address acquisition unit that acquires an IP address of an external device, an access point detection unit that detects one or a plurality of access points, and a network address of the detected access point Network address acquisition means, IP address history information acquisition means for acquiring IP address history information associated with an access point and an IP address used for the previous connection, and access point used for the previous connection Network address history information acquisition means for acquiring network address history information in which a network address is associated with the network address, an IP address acquired by the IP address acquisition means, an access point acquired by the access point acquisition means, and the network address And an extraction means for extracting an access point from the detected access points based on the network address acquired by the network acquisition means, the IP address history information, and the network address history information. Features.

  The communication device according to claim 2 is the communication device according to claim 1, wherein the communication device further includes an IP whose IP address acquired by the IP address acquisition unit matches the IP address history information. An IP address determination unit that determines whether an access point corresponding to a matched IP address is included in the detected access point, and the network address acquired by the network address acquisition unit includes the network address history information. Network address determination means for determining whether or not an access point corresponding to the matched network address is included in the detected access point, and the extraction means includes the IP address Address judgment part or before Depending on the network address determination section of the determination result, it extracts the access point from among the detected access point, characterized in that.

  The communication device according to claim 3 is the communication device according to claim 2, wherein the communication device is further associated with an access point determined to match the IP address determination unit or the network address determination unit. Priority giving means for giving priority for connection to the access point detected by the access point detecting means, and according to the priority, the priority giving means gives a connection instruction to the access point to which the priority is given And instructing means.

  The communication device according to claim 4 is the communication device according to claim 2 or 3, wherein the communication device further includes an update unit, and the update unit is extracted by the extraction unit. The IP address history information is updated by adding the IP address acquired by the IP address acquisition means to the IP address history information in association with the access point, and the update means is extracted by the extraction means In association with the access point, the network address history information is updated by adding the network address of the access point extracted by the extracting means to the network address history information.

  The communication device according to claim 5 is the communication device according to any one of claims 2 to 4, wherein the extraction unit determines that the IP address determination unit has a plurality of access points that are determined to match. An access point that is determined to match both the address determination unit and the network address determination unit is extracted from the detected access point.

  The communication device according to claim 6 is the communication device according to any one of claims 1 to 5, wherein the communication device further includes an operation unit, and the IP address acquisition unit is connected to the operation unit. An IP address of the external device is acquired by an operation.

  According to a seventh aspect of the present invention, in the communication device according to any of the second to sixth aspects, the determination by the network address determination unit is performed when there is no matching access point in the determination by the IP address determination unit. It is characterized by performing.

  The communication device according to claim 8 is the communication device according to any one of claims 1 to 7, wherein the IP address history information and the network address history information include the access point, the IP address, and the network. The addresses are associated with each other.

  The communication device according to claim 9 is used in the communication device according to any one of claims 1 to 8 for position data acquisition means for acquiring position data representing a current position of the communication device and a previous connection. Further, the position data history information acquisition means for acquiring the position data history information in which the access point and the position data are associated, the IP address acquired by the IP address acquisition means, the access point acquired by the access point acquisition means, Extraction means for extracting an access point from the detected access points based on the position data acquired by the position data acquisition means, the IP address history information, and the position data history information. It is characterized by that.

  The communication device according to claim 10 includes an IP address acquisition unit that acquires an IP address of an external device, an access point detection unit that detects one or a plurality of access points, and position data representing a current position of the communication device. Location data acquisition means for acquiring, IP address history information acquisition means for acquiring IP address history information associated with an access point and an IP address used for the previous connection, and access used for the previous connection Position data history information acquisition means for acquiring position data history information in which a point and position data are associated; an IP address acquired by the IP address acquisition means; an access point acquired by the access point acquisition means; and the position The location data acquired by the data acquisition means, the IP address history information, It said position data history information, based on, characterized in that it comprises a extraction means for extracting an access point from among the detected access point.

  12. The communication device according to claim 11, wherein an IP address acquisition unit that acquires an IP address of an external device, an access point detection unit that detects one or a plurality of access points, and a network address of the detected access point Network address acquisition means, IP address history information acquisition means for acquiring IP address history information associated with an access point and an IP address used for the previous connection, and access point used for the previous connection Network address history information acquisition means for acquiring network address history information in which a network address is associated with the network address, an IP address acquired by the IP address acquisition means, an access point acquired by the access point acquisition means, and the network address The communication device functions as an extraction unit that extracts an access point from the detected access points based on the network address acquired by the address acquisition unit, the IP address history information, and the network address history information. It is a communication program for making it happen.

  The communication device according to claim 12, wherein an IP address acquisition unit that acquires an IP address of an external device, an access point detection unit that detects one or a plurality of access points, and a network address of the detected access point Network address acquisition means, position data acquisition means for acquiring position data representing the current position of the communication device, and IP address history information associated with the access point and IP address used for the previous connection IP address history information acquisition means, network address history information acquisition means for acquiring network address history information associated with an access point and a network address used for the previous connection, and used for the previous connection, Access point and location data Location data history information acquisition means for acquiring linked location data history information, IP address acquired by the IP address acquisition means, access point acquired by the access point acquisition means, and acquisition by the network address acquisition means Of the detected access point based on the network address, the location data acquired by the location data acquisition means, the IP address history information, the network address history information, and the location data history information. It is a communication program for causing a communication device to function as an extraction means for extracting an access point from the communication device.

  According to the first, second, fourth, and sixth to eleventh aspects of the present invention, the communication device can select the prior art from a plurality of access points based on the information related to the connection between the communication device and the external device. Extract access points that are more likely to be connected.

  According to the invention of claim 3, a higher priority is given to the access point determined to be matched by the IP address determining means than the access point determined to be matched by the network address determining means, and the access point is determined according to the priority. By extracting, the communication device connects to an access point having a higher connection possibility than the above.

  According to the invention of claim 5, the extracting means determines whether the IP address determining means determines the network address determining means from among the plurality of access points even if the IP address determining means determines that the plurality of access points match. By performing access point extraction based on this, the communication device extracts an access point having a higher connection possibility than the above.

It is a figure for demonstrating the use environment of a communication apparatus. It is a figure for demonstrating the use environment of a communication apparatus. It is a figure for demonstrating the functional structure of a communication apparatus. It is a figure for demonstrating the functional structure of a communication apparatus. It is a figure for demonstrating the functional structure of a communication apparatus. It is a figure for demonstrating the functional structure of a communication apparatus. It is a figure for demonstrating the functional structure of a communication apparatus. It is a figure which shows the processing flow at the time of the communication start of a communication apparatus and an external apparatus. It is a figure for demonstrating an example of the detected access point. It is a figure for demonstrating an example of the information which each log | history information holding part hold | maintains. It is a figure for demonstrating an example of the information which a priority holding | maintenance part holds. It is a figure for demonstrating an example of the detected access point.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, about drawing, the same code | symbol is attached | subjected to the same or equivalent element, and the overlapping description is abbreviate | omitted. FIG. 1 is a diagram for explaining a communication system according to the present embodiment. As shown in FIG. 1, the communication system includes, for example, a communication device 101, an external device 102, an access point 103, a NAT router 104 (NETWORK ADDRESS TRANSLATION), a network 111, a LAN (LOCAL AREA NETWORK) line 112, and short-range wireless communication. Line 113 is included.

  Both the communication device 101 and the external device 102 are devices having a function of connecting to a wide-area communication line and a function of connecting to a communication line communicating in a narrower area than the wide-area communication line. Each internal configuration will be described later. For example, the access point 103 connects wireless terminals such as laptop computers to each other by wireless LAN communication, and connects the wireless terminal to the Internet by connecting to another network such as the Internet. The wireless LAN communication system is an example, for example, a system defined by IEEE 802.11.

  The NAT router 104 is a so-called relay device between different networks. For example, the NAT router 104 converts a network address included in the packet header into another network address in a computer network constructed by the Internet protocol to form a subnetwork. Accordingly, even if the access point 103 is routed, the network address differs depending on whether the route is routed through the NAT router 104 or not.

  The network 111 is a wide-area communication line that connects LAN lines to each other, and includes the Internet. The LAN line 112 is an internal network installed between devices within a certain limited area. For example, in FIG. 1, an access point 103, an external device 102, a NAT router 104, and the like are connected by a LAN line 112. The short-range wireless communication line 113 is a communication network for directly transmitting and acquiring information between the communication device 101 and the external device 102. The short-range wireless communication line 113 is a wireless communication unit such as Bluetooth (registered trademark) or Felica (registered trademark).

  FIG. 2 is a diagram for explaining an outline of the configuration of the communication device 101 according to the embodiment of the present invention. FIG. 2 is an example showing details of the communication device 101 and the external device 102 in FIG. As illustrated in FIG. 2, the communication system 221 in the present embodiment includes, for example, a communication device 101 and an external device 102 connected via a network 111.

  The communication device 101 is, for example, a portable terminal configured with a CPU, a memory, and the like. For example, the control unit 201, the storage unit 202, the operation unit 203, the first communication unit 204, the second communication unit 205, a display Part 206. Note that the control unit 201, the storage unit 202, the operation unit 203, the first communication unit 204, the second communication unit 205, and the display unit 206 are connected to each other via an internal bus 207.

  The control unit 201 is, for example, a CPU, MPU, or the like, and operates according to a program stored in the storage unit 202. The storage unit 202 is an information recording medium that includes an information recording medium such as a ROM, a RAM, and a hard disk, and holds a program executed by the control unit 201. The storage unit 202 also operates as a work memory for the control unit 201. Note that the program may be provided by being downloaded via the network 111 or may be provided by various information recording media that can be read by a computer such as a CD-ROM or a DVD-ROM. Good.

  The operation unit 203 includes, for example, a plurality of buttons, a touch panel, and the like, and outputs the content of the instruction operation to the control unit 201 in accordance with a user instruction operation. The display unit 206 is, for example, a liquid crystal display or an organic EL display, and displays information according to instructions from the control unit 201.

  The first communication unit 204 connects the communication device 101 to an external device 102 described later via a wide-area communication line. The second communication unit 205 connects the communication device 101 to the external device 102 described later via a communication line that communicates in a narrower area than the wide-area communication line.

  The external device 102 is, for example, a so-called multifunction device having a FAX function, a scanner function, and the like. As shown in FIG. 2, for example, a control unit 211, a storage unit 212, and an operation unit connected to each other via an internal bus 217. 213, a first communication unit 214, a second communication unit 215, a display unit 216, and a reading unit 218.

  The reading unit 218 reads the image of the medium by scanning the surface of the medium with an image sensor, and acquires the image as image information. Note that the control unit 211, the storage unit 212, the operation unit 213, the first communication unit 214, the second communication unit 215, and the display unit 216 are the same as those of the communication device 101, and thus description thereof is omitted.

  The configuration of the communication system 221 is an example and is not limited thereto. For example, FIG. 2 shows a case where only the external device 102 has the reading unit 218, but the communication device 101 may be configured to have a reading unit.

  3 to 7 illustrate functions inside the communication device 101, particularly related to the control unit 201. FIG. Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  As illustrated in FIG. 3, the communication device 101 functionally includes a control unit 201, a first communication unit 204, a priority holding unit 303, and a history information holding unit 340. The control unit 201 functionally includes an access point detection unit 301, a connection information acquisition unit 310, a determination unit 320, a history information acquisition unit 330, a priority assignment unit 302, an extraction unit 304, an instruction unit 305, and an update unit 306. Including. In FIG. 3, the priority holding unit 303 and the history information holding unit 340 are not included in the control unit 201 and are included in the communication device 101, but these are included in the control unit 201. Alternatively, a configuration outside the communication device 101 may be used.

  The access point detection unit 301 detects one or more access points 103 and the network address of each access point 103. Specifically, for example, a case where there are six access points 103 as shown in FIG. 9 within the communication range of the communication device 101 will be described as an example. In this case, the access point detection unit 301 detects the access point 103 shown in FIG. 9 and creates a list of identification names of the access points (hereinafter referred to as an access point identification name list). The network address of each access point 103 detected by the access point detection unit 301 will be described later.

  For example, an SSID (Service Set Identifier) is used as the identification name of the detected access point 103. In this case, the number and identification names of the detected access points 103 differ depending on the surrounding environment of the communication terminal.

  Note that the access point detection unit 301 may detect the radio wave intensity of each access point 103 as the access point 103 is detected. The radio wave intensity is the intensity of the electric field or magnetic field of the radio wave at a point where the communication device 101 exists when the radio wave emitted from each access point 103 propagates to the communication device 101. Specifically, for example, as shown in FIG. 12, the access point detection unit 301 detects the radio wave intensity of each access point 103 in the access point identification name list, and associates the radio wave intensity of each access point 103 with the identification name. To create a list. The radio wave intensity is used by the extraction unit 304 described later to extract the access point 103.

  The connection information acquisition unit 310 acquires information necessary for extracting the access point 103 to be connected from the access point identification name list. For example, as shown in FIG. 4, the connection information acquisition unit 310 includes an IP address acquisition unit 311, a network address acquisition unit 312, and a location data acquisition unit 313, and specifically acquires the following information.

  The IP address acquisition unit 311 acquires the IP address of the external device 102 attempting communication. Specifically, for example, an IP address is obtained by performing short-range wireless communication such as Bluetooth or Felica using the second communication unit 205 of the external device 102 attempting to connect and the second communication unit 205 of the communication device 101. To get. Specifically, for example, the IP address acquisition unit 311 acquires the IP address “172.27.137.110”.

  As described above, the IP address acquisition unit 311 may be configured to acquire via the second communication unit 205, or may be configured to acquire an IP address by operating the operation unit 203 by the user. There may be. Specifically, for example, the user inputs the IP address of the external device 102 to be connected by operating the operation unit 203 of the communication terminal. Then, the IP address acquisition unit 311 acquires the input IP address.

  The network address acquisition unit 312 acquires the network address of the subnet to which the IP address acquired by the IP address acquisition unit 311 belongs. A subnet is a small network that serves as a management unit when a wide area network is divided into a plurality of small networks. Specifically, for example, when the IP address of the external device 102 is “172.27.137.110”, and the subnet is three numerical values in front of the four numerical values of the IP address separated by commas. Will be described as an example. In this case, since the subnet that is the front three of the four numerical values separated by commas is “172.27.137.0”, the network address acquisition unit 312 determines “172.27.137.0”. Get the network address.

  The position data acquisition unit 313 acquires data on the current position of the communication device 101. Specifically, for example, the position data acquisition unit 313 acquires the position data in the form of latitude and longitude on the earth using GPS (GLOBAL POSITIONING SYSTEM).

  The determination unit 320 determines whether the access point 103 associated with the information acquired by the connection information acquisition unit 310 matches the access point 103 included in the access point identification name list, through history information described later. The determination unit 320 includes, for example, as shown in FIG. 5, an IP address determination unit 321, a network address determination unit 322, and a location data determination unit 323, and each determination unit includes IP address history information, network address history information, or Specifically, the following determination is performed using the position data history information.

  Here, the IP address history information is information in which the IP address of the external device 102 to which the communication device 101 has previously connected is associated with the identification name of the access point 103 used for the connection. Specifically, for example, as shown in FIG. 10, the IP address history information includes the access point used for the connection in the second column and the first column of the IP address of the external device 102 to which the communication device 101 has previously connected. This is information in which the identification name 103 is associated with the first column.

  Similarly, the network address address history information includes the network address of the access point 103 used for the connection and the identification name of the access point 103 used for the connection in the previous connection between the communication device 101 and the external device 102. The associated information. Specifically, for example, as shown in FIG. 10, the IP address history information includes the IP address of the external device 102 to which the communication device 101 has been previously connected in the third column and the access point used for the connection in the first column. This is information in which the identification name 103 is associated with the first column.

  Similarly, the position data history information is information that associates the position data related to the connection point in the previous connection between the communication device 101 and the external device 102 and the identification name of the access point 103 used for the connection. It is. Specifically, for example, as shown in FIG. 10, the IP address history information includes an access point used for the connection in the fourth column and the first column of the IP address of the external device 102 to which the communication device 101 has previously connected. This is information in which the identification name 103 is associated with the first column.

  The IP address determination unit 321 includes, in the access point identification name list, the access point 103 related to the IP address acquired by the IP address acquisition unit 311 via the IP address history information acquired by the IP address history information acquisition unit 331. It is determined whether or not the access point 103 matches. Specifically, for example, the IP address acquired from the IP address acquisition unit 311 is “172.27.137.110”, and the IP address history information acquired from the IP address history information acquisition unit 331 is the IP shown in FIG. The case where the access point 103 which is address history information and detected by the access point detection unit 301 is the access point list shown in FIG. 9 will be described as an example.

  For example, first, the IP address determination unit 321 determines whether the IP address “172.27.137.110” is included in the IP address history information of FIG. Here, there is the same IP address as the IP address in the second line of FIG. Then, next, whether or not the access point 103 identified by “1-EXP-A-11bg” related to “172.27.137.110” is in the access point identification name list shown in FIG. Determine if.

  In this case, since the access point identification name “1-EXP-A-11bg” is in the access point identification name list shown in FIG. 9, the IP address determination unit 321 determines the access point identified by the access point identification name. It is determined that the points 103 match. Note that when the IP address determination unit 321 determines that a plurality of access points 103 match, the IP address determination unit 321 determines that each access point 103 matches.

  Also, the update unit 306 described later updates the IP address history information in the IP address history information holding unit 341 described later, updates the network address history information in the network address history information holding unit 342 described later, and will be described later. The position data history information is updated in the position data history information holding unit 343.

  Note that there may be a plurality of access points 103 that the IP address determination unit 321 determines to match. Specifically, for example, a case where the IP address acquisition unit 311 acquires an IP address “202.221.87.231” and the IP address history information acquisition unit 331 acquires the IP address history information shown in FIG. Explained as an example.

  Since the IP address “202.21.87.231” is included in FIG. 10, the IP address determination unit 321 includes “1-EXP-A-11bg” and “Terminal 3600R” related to the IP address. It is determined whether the two access point identification names are included in the access point identification name list shown in FIG. In this case, access point identification names “1-EXP-A-11bg” and “Terminal 3600R” are both included in the access point identification name list shown in FIG. Therefore, the IP address determination unit 321 determines that the two access points 103 identified by “1-EXP-A-11bg” and “Terminal 3600R” match each other.

  As described above, in FIG. 10, there are two access points 103 related to one IP address “202.221.87.231”. This is because the connection to the external device 102 having the IP address “202.221.87.231” via the access point 103 identified by “1-EXP-A-11bg” and the NAT router 104 This indicates that there is a connection history using a different route of “Terminal 3600R” connected to the access point 103 belonging to a network address different from “1-EXP-A-11bg”.

  As will be described in detail later, when the IP address determination unit 321 determines that the access point 103 matches, the determination by the network address determination unit 322 and the position data determination unit may be omitted.

  The network address determination unit 322 includes, in the access point identification name list, the access point 103 related to the network address acquired by the network address acquisition unit 312 via the network address history information acquired by the network address history information acquisition unit 332. It is determined whether or not the access point 103 matches.

  The network address determination unit 322 acquires a network address from the network address acquisition unit 312. The network address determination unit 322 acquires network address history information from the network address history information acquisition unit 332. In addition, the network address determination unit 322 acquires the access point identification name and network address of each access point 103 from the access point detection unit 301. After obtaining the above information, the network address determination unit 322 performs the above determination.

  Specifically, for example, the network address acquired from the network address acquisition unit 312 is “172.27.137.0”, and the network address history information acquired by the network address history information acquisition unit 332 is the access shown in FIG. A case of a point list will be described as an example.

  For example, first, the network address determination unit 322 determines whether the network address “172.27.137.0” is included in the network address history information of FIG. Here, in the second line of FIG. 10, there is the same network address as the network address. Next, it is determined whether or not the access point identification name “1-EXP-A-11bg” related to “172.27.137.0” is included in the communicable access point identification name list shown in FIG. judge.

  In this case, since the access point identification name “1-EXP-A-11bg” is in the access point identification name list shown in FIG. 9, the access point 103 identified by this access point identification name matches. judge. Note that when the network address determination unit 322 determines that the plurality of access points 103 match, the network address determination unit 322 determines that each access point 103 matches.

  The position data determination unit 323 includes, in the access point identification name list, the access point 103 related to the position data acquired by the position data acquisition unit 313 via the position data history information acquired by the position data history information acquisition unit 333. It is determined whether or not the access point 103 matches. Specifically, for example, the position data determination unit 323 uses the position data “34.6392, 135.7842”, the access point identification name list shown in FIG. 9 and the position data history information shown in FIG. A case of determination will be described as an example.

  For example, first, the position data determination unit 323 determines whether or not the position data history information in FIG. 10 includes data that matches the position data “34.6392, 135.7842”. Here, the same position data as “34.6392, 135.7842” is present in the first and second lines in FIG. Next, it is determined whether or not the access point 103 “1-EXP-A-11bg” related to “34.6392, 135.8422” exists in the communicable access point list shown in FIG.

  In this case, since the access point identification name “1-EXP-A-11bg” is included in the access point identification name list shown in FIG. 9, the access point 103 identified by this access point identification name matches. Is determined. When determining that the plurality of access points 103 match, the position data determination unit 323 determines that each access point 103 matches.

  Note that the position data determination unit 323 includes a point represented by the latitude and longitude of the position data acquired by the position data acquisition unit 313 and a point represented by the latitude and longitude of the position data included in the position data history information acquisition unit 333. If it is within a preset range, it may be determined that the two position data match. Specifically, for example, the position data acquired by the position data acquisition unit 313 is “34.6391, 135.7841”, the position data history information is as shown in FIG. A case where the difference between latitude and longitude is both set to “0.002” or less will be described as an example.

  The range set in advance for the position data acquired by the position data acquisition unit 313 includes latitudes between “34.6389” and “34.6392”, and longitudes “135.7842” and “135.7839”. It is the range represented by between. Accordingly, the position data determination unit 323 determines position data included in the range among the points represented by the position data of the position data history information. Among the position data included in the position data history information shown in FIG. 10, the position data “34.6392, 135.7842” shown in the second line is included in the above range. Therefore, the position data determination unit 323 determines that the position data “34.6392, 135.7842” match.

  The history information acquisition unit 330 acquires history information related to the connection with the external device 102 previously performed by the communication device 101. The history information acquisition unit 330 includes, for example, an IP address history information acquisition unit 331, a network address history information acquisition unit 332, and a location data history information acquisition unit 333 as shown in FIG. Get information.

  The IP address history information acquisition unit 331 acquires the above-described IP address history information from an IP address history information holding unit 341 described later. The network address history information acquisition unit 332 acquires the above network address history information from the network address history information holding unit 342 described later. The position data history information acquisition unit 333 acquires the above-described position data history information from the position data history information holding unit 343 described later.

  The history information holding unit 340 holds history information related to the connection with the external device 102 previously made by the communication device 101. The history information holding unit 340 includes, for example, an IP address history information holding unit 341, a network address history information holding unit 342, and a position data history information holding unit 343, as shown in FIG.

  The IP address history information holding unit 341 obtains the identification name of the access point 103 acquired by the access point detection unit 301 at the time of connection and the IP address acquisition unit for the connection with the external device 102 previously made by the communication device 101. The history information associating the IP address of the external device 102 is stored. The IP address history information holding unit 341 receives an instruction from the update unit 306, which will be described later, and uses the identification name of the access point 103 and the IP address of the external device 102 that has made the connection as IP address history information. Add and hold.

  The network address history information holding unit 342 acquires the identification name of the access point 103 acquired by the access point detection unit 301 at the time of connection and the network address acquisition unit for the connection with the external device 102 previously performed by the communication device 101. The history information associating the network address of the external device 102 is stored. The network address history information holding unit 342 receives an instruction from the update unit 306 to be described later, and uses the identification name of the access point 103 and the network address of the external device 102 that has made the connection as network address history information. Add and hold.

  The position data history information holding unit 343 has the identification name of the access point 103 acquired by the access point detection unit 301 at the time of connection and the position data acquisition unit 313 for the connection with the external device 102 previously made by the communication device 101. History information in which the acquired position data in the connection is associated is held. In response to an instruction from the update unit 306, which will be described later, the location data history information holding unit 343 adds the identification name of the access point 103 that has passed through the connection and the location data related to the connection to the location data history information.

  Note that the IP address history information holding unit 341, the network address history information holding unit 342, and the location data history information holding unit 343 may be configured to be included in the storage unit 202 of FIG. You may comprise so that it may arrange | position outside.

  Although not shown in FIG. 7, the history information holding unit 340 associates the connection with the external device 102 previously performed by the communication device 101 with the identification name of the access point 103 that has passed through the connection, You may comprise so that it may have the connection frequency holding part which hold | maintains the past connection frequency, and the last connection date holding part which hold | maintains the last connection date. Specifically, for example, as shown in FIG. 11, the number of connections is information that associates the identification name of the access point 103 that has been connected before the first column and the number of times of connection to the access point 103. is there. The last connection date is information that associates the identification name of the access point 103 connected before the first column and the last date of connection to the access point 103. As will be described later, the number of connections and the last connection date are used to extract the access point 103.

  The priority assigning unit 302 differs in connection to the access point 103 for the access point 103 determined to match based on the determination of the IP address determining unit 321, the network address determining unit 322, or the location data determining unit 323. Give priority.

  Specifically, for example, when the IP address determination unit 321 determines that a certain access point 103 matches, the priority assigning unit 302 determines the priority “ “High”. Similarly, when the network address determination unit 322 determines that the access point 103 matches, the priority assigning unit 302 sets the priority “medium +” for the access point identification name list for the access point. Is given. Similarly, when the position data determination unit 323 determines that a certain access point 103 matches, the priority assigning unit 302 has a priority “medium” for the access point identification name list with respect to the access point. Is granted.

  Note that the priority assigning unit 302 may assign the priorities to the access points 103 determined as matching by the determining units 320 in the form of numerical values. In this case, for example, the priority assigning unit 302 assigns a priority “4” to the access point 103 that the IP address determining unit 321 determines to match. Similarly, the priority assigning unit 302 assigns priority “3” to the access point 103 that the network address determining unit 322 determines to match. Similarly, the priority assigning unit 302 assigns priority “2” to the access point 103 that the position data determining unit 323 determines to match.

  In this case, for example, when the IP address determination unit 321 and the network address determination unit 322 determine that they match with respect to a certain access point 103, the priority assignment unit 302 sets the access point 103 to “4” + A priority of “3” = “7” is given. When the IP address determination unit 321 and the position data determination unit 323 determine that the access point 103 matches, the priority assignment unit 302 sets the access point 103 to “4” + “2”. = Give priority “6”. Similarly, even when the combination of the determination units determined to match with respect to a certain access point is other than the above, the priority assigning unit 302 adds the priorities to be provided according to the determination of each determination unit. A numerical value is assigned to the access point 103.

  Specifically, for example, the IP address determination unit 321 determines that the access point 103 identified by “1-EXP-A-11bg” does not match, and the network address determination unit 322 determines that “1-EXP It is determined that the access point 103 identified by “−A-11bg” matches, and the position data determination unit 323 determines that the access point 103 identified by “1-EXP-A-11bg” matches. A case will be described as an example.

  In this case, first, since the IP address determination unit 321 determines that the access point 103 identified by “1-EXP-A-11bg” does not match, the priority assignment unit 302 determines that “1-EXP-A No priority is given to the access point 103 identified by −11bg ″. Next, since the network address determination unit 322 determines that the access point 103 identified by “1-EXP-A-11bg” matches, the priority assignment unit 302 sets “1-EXP-A-11bg”. The priority “3” is assigned to the access point 103 identified in FIG.

  Next, the position data determination unit 323 determines that the access point 103 identified by “1-EXP-A-11bg” matches, but the access point identified by “1-EXP-A-11bg”. Since 103 has already been given priority “3”, the priority assigning unit 302 assigns “2” to the priority “3” for the access point 103 identified by “1-EXP-A-11bg”. The added priority “5” is given.

  The priority holding unit 303 holds the priority assigned by the priority assigning unit 302 to each access point 103 in the access point identification name list. Specifically, for example, as illustrated in FIG. 9, when the priority assigning unit 302 assigns a priority “high” to “1-EXP-A-11bg”, the priority holding unit 303 The priority “high” is held for the access point 103. When the priority assigning unit 302 assigns a priority to the access point 103 as a numerical value, the priority holding unit 303 stores the priority in the numerical form in the access point 103.

  The extraction unit 304 extracts the access point 103 from the detected access points 103 in accordance with the determination by the IP address determination unit 321, the network address determination unit 322, or the location data determination unit 323. Specifically, for example, as illustrated in FIG. 9, when the priority described in the second column is assigned to each detected access point 103, the extraction unit 304 assigns the highest priority. The access point 103 called “1-EXP-A-11bg” is extracted. This point will be described in detail later in the description of the flow using FIG.

  In addition, when the priority assigning unit 302 does not give priority to any of the detected access points 103, or when the priority assigning unit 302 gives the same priority to a plurality of access points 103, extraction is performed. The unit 304 may extract the access point 103 based on each radio wave intensity, the past number of connections, or the last connection date.

  Specifically, for example, the history information holding unit 340 holds the past connection count and the last connection date as shown in FIG. 11, and the access point detection unit 301 acquires the radio wave intensity as shown in FIG. This will be described as an example. For example, when the extraction unit 304 gives priority to the access point 103 having the largest number of connections, the number of connections of the access point 103 identified by “1-EXP-F-11bg” is the largest in FIG. The extraction unit 304 extracts the access point 103 identified by “1-EXP-F-11bg”.

  Further, when the extraction unit 304 gives priority to the access point 103 with the newest connection date, in FIG. 11, the last connection date of the access point 103 identified by “Terminal 3600U” is 2012/10/10, which is the newest. Therefore, the extraction unit 304 extracts the access point 103 identified by “Terminal 3600U”. Further, when the extraction unit 304 gives priority to the access point 103 having the strongest radio field intensity, the extraction unit 304 has the highest radio field intensity of the access point 103 identified by “1-EXP-A-11bg” in FIG. Since it is high, the extraction unit 304 extracts the access point 103 identified by “1-EXP-G-11bg”.

  Which item is prioritized among the radio wave intensity, the number of connections, and the last connection date is set in advance. If the extraction unit 304 cannot extract one access point 103 using any information of the radio wave intensity, the number of connections, and the last connection date, the extraction unit 304 may randomly extract one access point 103, Alternatively, this is notified to the user via the display unit 206.

  The instruction unit 305 acquires an access point identification name related to the access point 103 extracted by the extraction unit 304. The instruction unit 305 also receives the IP address acquired by the IP address acquisition unit 311 from the determination unit 320, the network address of the access point 103 identified by the access point identification name acquired from the extraction unit 304, and the position data acquisition unit. The position data acquired by 313 is acquired. Then, the instruction unit 305 instructs the first communication unit 204 to connect to the access point 103 extracted by the extraction unit 304.

  After the instruction unit 305 instructs the first communication unit 204 to connect to the access point 103 extracted by the extraction unit 304, the update unit 306 receives the access point acquired from the instruction unit 305. The IP address history information holding unit 341 is updated by associating and storing the access point identification name 103 and the IP address 103 in the IP address history information holding unit 341.

  Similarly, the update unit 306 holds the network address history information by associating the access point identification name and the network address of the access point 103 acquired from the instruction unit 305 with the network address history information holding unit 342 in association with each other. The part 342 is updated. Similarly, the update unit 306 associates the access point identification name and location data of the access point 103 acquired from the instruction unit 305 with the location data history information holding unit 343 in association with each other, thereby holding the location data history The information holding unit 343 is updated.

  If necessary, the update unit 306 associates the access point identification name of the access point 103 acquired from the instruction unit 305 with the date on which the instruction to connect by the extraction unit 304 is made, and the history information holding unit 340 The history information holding unit 340 may be updated by overwriting and holding the history information. In addition, the update unit 306 associates the access point identification name of the access point 103 acquired from the instruction unit 305 with the number of connections to the access point, and overwrites the history information holding unit 340 to hold the history information holding unit. It is good also as a structure which updates 340. FIG.

  Note that the network address updated by the update unit 306 is the network address of the access point 103 to be connected. For example, when passing through the NAT router 104, the network address acquired by the network address acquisition unit 312 and the update unit The network address updated by 306 may be different. For example, when the communication path between the communication device 101 and the external device 102 passes through the NAT router 104, the network address of the access point 103 connected to the subnet of the IP address of the external device 102 is different. In this case, the update unit 306 updates the network address history information for a network address different from the subnet of the IP address acquired by the IP address acquisition unit 311.

  Specifically, for example, when the IP address acquisition unit 311 acquires the IP address “202.21.87.231” and connects to the access point 103 having the network address “192.168.10.0”. Will be described as an example. In this case, the network address acquisition unit 312 acquires the network address “202.221.87.0” that is the subnet of the IP address. However, since the network address of the access point 103 to be connected is “192.168.10.0”, the update unit 306 is different from the network address acquired by the network address acquisition unit 312 “192.168.10.0”. The network address history information is updated for the network address "."

  3 to 7, the control unit 201 includes a position data acquisition unit 313, a position data determination unit 323, a position data history information acquisition unit 333, and a position data history information holding unit 343. In the case of having, the control unit 201 may be configured not to include the network address acquisition unit 312, the network address determination unit 322, the network address history information acquisition unit 332, and the network address history information holding unit 342.

  3 to 7, the control unit 201 includes a network address acquisition unit 312, a network address determination unit 322, a network address history information acquisition unit 332, and a network address history information holding unit 342. If the control unit 201 has the position data acquisition unit 313, the position data determination unit 323, the position data history information acquisition unit 333, and the position data history information holding unit 343, the control unit 201 may have a configuration.

  FIG. 8 is a processing flow performed by the communication device 101 according to the embodiment of the present invention. The following flow is an example, and the present embodiment is not limited to this. In the following description, it is assumed that each history information holding unit 340 holds each history information shown in FIG.

  First, the IP address acquisition unit 311 acquires an IP address unique to the external device 102 from the external device 102 (S801). For example, the IP address acquisition unit 311 acquires the IP address “172.27.137.110” from the external device 102 via the second communication unit.

  Next, the access point detection unit 301 detects the access point 103 existing within the communication range and the network address of the access point (S802). In addition, the access point detection unit 301 may acquire the radio wave intensity of each access point 103. Next, the network address acquisition unit 312 acquires a network address from the subnet of the IP address acquired by the IP address acquisition unit 311 (S803). In the above example, the network address “172.27.137.0” is acquired. Note that. The steps of S802 and S803 may be before S801.

  Next, the position data acquisition unit 313 acquires the current position data of the communication device 101 (S804). For example, the position data acquisition unit 313 acquires latitude and longitude data “60.25564, 121.3546”. Note that the timing for acquiring the position data may be before S801 or S802.

  Next, the IP address determination unit 321 uses the IP address history information acquired by the IP address history information acquisition unit 331 to determine that the access point 103 associated with the IP address acquired by the IP address acquisition unit 311 is an access point identification name. It is determined whether it matches the access point 103 included in the list (S805). For example, in the above example, since the access point 103 identified by “1-EXP-A-11bg” is associated with the IP address “172.27.137.110”, the IP address determination unit 321 It is determined that the point 103 matches.

  When the IP address determination unit 321 determines that there is a matching access point 103 in the access point identification name list, the priority assignment unit 302 determines whether the IP address determination unit 321 determines that the access point 103 matches. Priorities for connection to the access point 103 are given to the access point identification name list (S806). In the above example, the priority assigning unit 302 assigns a priority “high” to the access point identification name list for the access point 103 identified by “1-EXP-A-11bg”.

  On the other hand, when the IP address determination unit 321 determines that there is no matching access point 103 in the access point identification name list, the priority assigning unit 302 determines which access point 103 in the access point identification name list. Also, the priority is not assigned to step S807, and the process proceeds to step S807.

  Next, the network address determination unit 322 determines that the access point 103 associated with the network address acquired by the network address acquisition unit 312 is the access point identification name via the network address history information acquired by the network address history information acquisition unit 332. It is determined whether it matches the access point 103 included in the list (S807).

  For example, in the above example, the access point 103 identified by “1-EXP-A-11bg” and “1-EXP-E-11bg” is associated with the network address “172.27.137.0”. Therefore, the network address determination unit 322 determines that the access points 103 identified by “1-EXP-A-11bg” and “1-EXP-E-11bg” match.

  When the network address determination unit 322 determines that there is a matching access point 103 in the access point identification name list, the priority assigning unit 302 accesses the access point 103 that the network address determination unit 322 determines to match. Priorities for connection to the access point 103 are given to the point identification name list (S808).

  Note that the priority assigning unit 302 transfers the access point 103 that the network address determination unit 322 determines to match to the access point 103 that has not been assigned a priority yet in the access point identification list. Give priority to other connections

  In the above example, the priority assigning unit 302 has already assigned the priority “high” to the access point identification name list for the access point 103 identified by “1-EXP-A-11bg” in S806. . In this case, in S808, the priority assigning unit 302 assigns the priority “medium +” to the access point identification name list only for the access point 103 identified by “1-EXP-E-11bg”.

  On the other hand, when the network address determination unit 322 determines that there is no matching access point 103 in the access point identification name list, the priority assigning unit 302 assigns to any access point 103 in the access point identification name list. Even if no priority is given, the process proceeds to step S809.

  Next, the location data determination unit 323 determines that the access point 103 associated with the location data acquired by the location data acquisition unit 313 is an access point identification name via the location data history information acquired by the location data history information acquisition unit 333. It is determined whether it matches the access point 103 included in the list (S809). For example, in the above example, since the access point 103 identified by “Terminal 3600R” is associated with the position data “60.25564, 121.3546”, the position data determination unit 323 determines that the access point 103 matches. judge.

  When the position data determination unit 323 determines that there is a matching access point 103 in the access point identification name list, the priority assigning unit 302 relates to the access point 103 that the position data determination unit 323 determines to match. Priorities for connection to the access point 103 are given to the access point identification name list (S810). In the above example, the priority assigning unit 302 assigns the priority “medium” to the access point identification name list for the access point 103 identified by “Terminal 3600R”.

  Although not shown in FIG. 8, when none of the detected access points 103 is given priority at the time when all the steps of S806, S808, and S809 are completed, The assigning unit 302 may assign a priority to the access point identification name list based on each radio wave intensity, the past number of connections, or the last connection date.

  On the other hand, when the position data determination unit 323 determines that there is no matching access point 103 in the access point identification name list, the priority assigning unit 302 assigns to any access point 103 in the access point identification name list. Even if no priority is given, the process proceeds to step S811.

  Next, the extraction unit 304 extracts the access point 103 from the access point identification name list according to the determination result of the IP address determination unit 321, the network address determination unit 322, or the location data determination unit 323 (S811). In the above example, the priority holding unit 303 holds the highest priority “high” for the access point 103 identified by “1-EXP-A-11bg”. The access point 103 identified by 1-EXP-A-11bg "is extracted.

  Next, the instruction unit 305 acquires the access point identification name of the access point 103 extracted by the extraction unit 304 from the extraction unit 304, and instructs the first communication unit 204 to connect to the access point 103. Do. (S812). In the above example, the instruction unit 305 issues a connection instruction to the access point 103 identified by “1-EXP-A-11bg”.

  In the above example, after the extraction unit 304 extracts the access point 103, the instruction unit 305 connects the first communication unit 204 so as to connect to the access point 103 identified by “1-EXP-A-11bg”. Instruct the connection to.

  On the other hand, the instruction unit 305 may be configured to issue a connection instruction to the access point 103 corresponding to the operation after the user performs an operation on the operation unit 203. For example, when the priority holding unit 303 holds the same priority for a plurality of access points, the instruction unit 305 operates the access point 103 corresponding to the operation after the user performs an operation on the operation unit 203. Instruct the connection to.

  In this case, after the extraction unit 304 extracts the access point 103, the display unit 206 extracts the access point identification name list, the priority assigned to each access point in the access point identification name list, and the extraction unit 304 extracts The identification name of the access point 103 is also displayed. Thereafter, the user performs an operation of selecting one access point from the access point identification name list on the operation unit 203. The instruction unit 305 issues a connection instruction to the access point 103 selected by operating the operation unit 203.

  Next, the instruction unit 305 receives the IP address acquired by the IP address acquisition unit 311 from the determination unit 320, the network address of the access point identified by the access point identification name acquired from the extraction unit 304, and the location data acquisition unit. The position data acquired by 313 is acquired (S813).

  Specifically, for example, in the above example, the instruction unit 305 acquires the IP address “172.27.137.110” acquired by the IP address acquisition unit 311 from the determination unit 320. In addition, the instruction unit 305 obtains the network address “172.27.137.0” of the access point 103 identified by “1-EXP-A-11bg” from the determination unit 320. In addition, the instruction unit 305 acquires position data “60.25564, 121.3546” acquired by the position data acquisition unit 313 from the determination unit 320.

  Next, the update unit 306 associates the identification name of the access point 103 that performs the connection with the IP address acquired by the IP address acquisition unit 311, and the update unit 306 The address history information holding unit 341 is updated (S814). In the above example, the updating unit 306 associates the access point 103 having the identification name “1-EXP-A-11bg” with the IP address “172.27.137.110”, and obtains the IP address history information. The IP address history information holding unit 341 is updated.

  Next, the update unit 306 associates the identification name of the access point 103 that performs the connection with the network address acquired by the network address acquisition unit 312 in S813. The network address history information holding unit 342 is updated (S815). In this case, the update unit 306 associates the access point 103 with the identification name “1-EXP-A-11bg” with the network address “192.168.10.0”, and the network address history information The network address history information holding unit 342 is updated.

  Next, the update unit 306 associates the identification name of the access point 103 that performs the connection with the position data acquired by the position data acquisition unit 313, and the update unit 306 The data history information holding unit 343 is updated (S816). In the above example, the update unit 306 associates the access point 103 having the identification name “1-EXP-A-11bg” with the position data “60.25564, 121.3546”, and stores the position data history information. The position data history information holding unit 343 is updated. Moreover, the update part 306 updates the log | history information holding | maintenance part 340 about the connection frequency and the last connection date as needed. Note that S814 to S816 are out of order, and updating may be performed in any order.

  3 to 7, the control unit 201 includes a network address acquisition unit 312, a network address determination unit 322, a network address history information acquisition unit 332, and a network address history information holding unit 342. If the configuration does not have, the steps S807 and S808 are omitted.

  Specifically, in step S805, after the IP address determination unit 321 determines that there is no matching access point 103 in the access point identification name list, the process proceeds to step S809. In step S806, the priority assigning unit 302 assigns a priority related to connection to the access point 103 to the access point identification name list for the access point 103 that the IP address determining unit 321 determines to match, and then in step S809. Go to step.

  Also, in the functional configuration of the present application shown in FIGS. 3 to 7, the control unit 201 controls the position data acquisition unit 313, the position data determination unit 323, the position data history information acquisition unit 333, and the position data history. If the configuration does not include the information holding unit 343, steps S809 and S810 are omitted.

  Specifically, in step S807, after the network address determination unit 322 determines that there is no matching access point 103 in the access point identification name list, the process proceeds to step S811. In step S808, the priority assigning unit 302 assigns a priority related to connection to the access point 103 to the access point identification name list for the access point 103 that the network address determining unit 322 determines to match, and then, in step S811. Go to step.

[Modification]
In the above example, an example is shown in which the determination by the IP address determination unit 321, the determination by the network address determination unit 322, and the determination by the position data determination unit 323 are all performed.

  On the other hand, when the IP address determination unit 321 determines that there is a matching access point 103 in the access point identification name list as in this modification, the determination by the network address determination unit 322 and the position data determination unit Either or both of the determinations by H.323 may be omitted and the access point 103 may be connected. Further, when the network address determination unit 322 determines that there is a matching access point 103 in the access point identification name list, the determination by the position data determination unit 323 is omitted and the connection to the access point 103 is performed. It is good also as a structure.

  The functional configuration of the present modification is the same as the configuration illustrated in FIGS. 3 to 7 except that the priority assigning unit 302 and the priority 303 are not provided as compared to the above embodiment.

  In the present modification, the extraction unit 304 acquires each determination result from the IP address determination unit 321, the network address determination unit 322, and the position data determination unit 323. Since the functions of the components other than the extraction unit are the same as those in the above embodiment, the description thereof is omitted.

  A processing flow performed by the communication device 101 according to the embodiment of the present modification will be described below. First, the present modification performs the same operation as steps S801 to S805 in the above embodiment.

  Next, in the same operation as in step S805, if the IP address determination unit 321 determines that there is a matching access point 103 in the access point identification name list, the extraction unit 304 accesses the access point 103. Get the point identifier. Then, the extraction unit 304 extracts the access point 103 identified by the access point identification name from the access point identification name list. Thereafter, the same operations as those in steps S812 to S816 in the above embodiment are performed.

  Specifically, for example, in the same operation as S805, when the IP address determination unit 321 determines that the access points 103 identified by “1-EXP-A-11bg” match, the network address determination unit 322 and Without performing the determination by the position data determination unit 323, the extraction unit 304 extracts the access point identified by “1-EXP-A-11bg”. The subsequent operation is the same as the operation in steps S812 to S816 in the above embodiment, and will not be described.

  On the other hand, when the IP address determination unit 321 determines that there is no matching access point 103 in the access point identification name list in the operation similar to step S805, the network address determination unit 322 The same determination as in S807 is performed.

  In this case, when the network address determination unit 322 determines that there is a matching access point 103 in the access point identification name list in the same operation as in step S807, the extraction unit 304 accesses the access point 103. Get the point identifier. Then, the extraction unit 304 extracts the access point 103 identified by the access point identification name from the access point identification name list. Thereafter, the same operations as those in steps S812 to S816 in the above embodiment are performed.

  Specifically, for example, in the same operation as S807, when the network address determination unit 322 determines that the access points 103 identified by “1-EXP-A-11bg” match, the position data determination unit 323 Without performing the determination, the extraction unit 304 extracts the access point identified by “1-EXP-A-11bg”. The subsequent operation is the same as the operation in steps S812 to S816 in the above embodiment, and will not be described.

  On the other hand, when the network address determination unit 322 determines that there is no matching access point 103 in the access point identification name list in the same operation as in step S807, the position data determination unit 323 The same determination as in S809 is performed.

  In this case, if the position data determination unit 323 determines that there is a matching access point 103 in the access point identification name list in the same operation as step S809 in the above embodiment, the extraction unit 304 The access point identification name of the access point 103 is acquired. Then, the extraction unit 304 extracts the access point 103 identified by the access point identification name from the access point identification name list. Thereafter, the same operations as those in steps S812 to S816 in the above embodiment are performed.

  Specifically, for example, in the same operation as in S809, when the position data determination unit 322 determines that the access points 103 identified by “1-EXP-A-11bg” match, the extraction unit 304 determines that “ The access point 103 identified by 1-EXP-A-11bg "is extracted. The subsequent operation is the same as the operation in steps S812 to S816 in the above embodiment, and will not be described.

  On the other hand, if the position data determination unit 322 determines that there is no matching access point 103 in the access point identification name list in the same operation as in step S809, the extraction unit 304 determines each radio wave intensity and past connection. The access point 103 may be extracted based on the number of times, the last connection date, or the operation of the operation unit 203 by the user.

  As described above, according to this modification, when the IP address determination unit 321 determines that there is a matching access point 103 in the access point identification name list, the network address determination unit 322 and the position data determination unit The determination by 323 is omitted. When the network address determination unit 322 determines that there is a matching access point 103 in the access point identification name list, the determination by the position data determination unit 323 is omitted. Therefore, according to this modification, the communication device 101 is quickly connected to the external device 102 as compared to the above embodiment.

  Further, according to the present modification, the configuration is simplified by omitting the priority assigning unit 302 and the priority holding unit 303 as compared with the above-described embodiment.

  As described above, in this embodiment, the access point 103 that can be connected to the external device 102 is detected and connected based on past connection results such as an IP address, a network address, and location information.

  The present embodiment is not limited to the above embodiment, and various modifications can be made. For example, a configuration that is substantially the same as the configuration described in the above embodiment, a configuration that exhibits the same operational effects, or that achieves the same object may be replaced with a configuration. Specifically, for example, the configuration and flow of the communication device 101 are examples, and are not limited thereto.

101 communication device, 102 external device, 103 access point, 104 NAT router, 111 network, 112 LAN line, 113 near field communication line,
201, 211 control unit, 202, 212 storage unit, 203, 213 operation unit, 204, 214 first communication unit, 205, 215 second communication unit, 206, 216 display unit, 207, 217 internal bus, 218 read 221 communication system 301 access point detection unit 302 priority assignment unit 303 priority holding unit 304 extraction unit 305 instruction unit 306 update unit 310 connection information acquisition unit 311 IP address acquisition unit 312 network Address acquisition unit, 313 Location data acquisition unit, 320 Determination unit, 321 IP address determination unit, 322 Network address determination unit, 323 Location data determination unit, 330 History information acquisition unit, 331 IP address history information acquisition unit, 332 Network address history Information acquisition unit, 333 Acquisition of position data history information , 340 historical information holding section, 341 IP address history information holding unit, 342 network address history information holding unit 343 position data history information holding unit.

Claims (12)

IP address acquisition means for acquiring the IP address of the external device;
Access point detection means for detecting one or more access points;
Network address obtaining means for obtaining a network address of the detected access point;
IP address history information acquisition means for acquiring IP address history information associated with the access point and the IP address of the external device used for the previous connection;
Network address history information acquisition means for acquiring network address history information associated with the access point and the network address of the access point used in the previous connection;
An IP address acquired by the IP address acquisition means; an access point acquired by the access point acquisition means; a network address acquired by the network address acquisition means; the IP address history information; and the network address history information; Extracting means for extracting an access point from the detected access points based on
Communication device having a. The communication device further includes:
It is determined whether the IP address acquired by the IP address acquisition unit has a matching IP address in the IP address history information, and an access point corresponding to the matching IP address is included in the detected access point. An IP address determination means;
It is determined whether the network address acquired by the network address acquisition means has a matching network address in the network address history information, and an access point corresponding to the matching network address is included in the detected access point. Network address determination means,
The extraction means extracts an access point from the detected access points according to a determination result of the IP address determination unit or the network address determination unit.
The communication device according to claim 1. The communication device further includes:
Priority giving means for assigning a priority related to connection to the access point detected by the access point detecting means in association with the access point determined to match the IP address determining means or the network address determining means;
In accordance with the priority, instruction means for instructing connection to the access point to which the priority giving means has given priority,
The communication device according to claim 2, further comprising: The communication device further includes:
Update means,
The update means updates the IP address history information by adding the IP address acquired by the IP address acquisition means to the IP address history information in association with the access point extracted by the extraction means,
The updating means is associated with the access point extracted by the extracting means,
4. The network address history information is updated by adding the network address of the access point extracted by the extracting means to the network address history information. 5. Communication equipment. When there are a plurality of access points that the IP address determination unit matches, the extraction unit detects the access point that is determined that both the IP address determination unit and the network address determination unit match. Extract from the access points
The communication device according to claim 2, wherein the communication device is a device. The communication device further includes:
Having operating means;
The IP address acquisition means acquires an IP address of the external device by operating the operation means.
The communication device according to claim 1, wherein the communication device is a device. The IP address if there is no access point that matches in the determination by the determining means, communication device according to any one of claims 2 to 6, characterized in that a determination by said network address determination means.   8. The IP address history information and the network address history information are such that the access point, the IP address, and the network address are associated with each other. Communication equipment. Position data acquisition means for acquiring position data representing the current position of the communication device;
Position data history information acquisition means for acquiring position data history information associated with the access point and the position data of the communication device used in the previous connection;
An IP address acquired by the IP address acquisition means; an access point acquired by the access point acquisition means; position data acquired by the position data acquisition means; the IP address history information; and the position data history information; Extracting means for extracting an access point from the detected access points based on
The communication device according to claim 1, comprising: IP address acquisition means for acquiring the IP address of the external device;
Access point detection means for detecting one or more access points;
Position data acquisition means for acquiring position data representing the current position of the communication device;
IP address history information acquisition means for acquiring IP address history information associated with the access point and the IP address of the external device used for the previous connection;
Position data history information acquisition means for acquiring position data history information associated with the access point and the position data of the communication device used in the previous connection;
An IP address acquired by the IP address acquisition means; an access point acquired by the access point acquisition means; position data acquired by the position data acquisition means; the IP address history information; and the position data history information; Extracting means for extracting an access point from the detected access points based on
Communication equipment having. IP address acquisition means for acquiring the IP address of the external device;
Access point detection means for detecting one or more access points;
Network address obtaining means for obtaining a network address of the detected access point;
IP address history information acquisition means for acquiring IP address history information associated with the access point and the IP address of the external device used for the previous connection;
Network address history information acquisition means for acquiring network address history information associated with the access point and the network address of the access point used in the previous connection;
An IP address acquired by the IP address acquisition means; an access point acquired by the access point acquisition means; a network address acquired by the network address acquisition means; the IP address history information; and the network address history information; Extracting means for extracting an access point from the detected access points based on
As a communication program to function communication equipment. IP address acquisition means for acquiring the IP address of the external device;
Access point detection means for detecting one or more access points;
Network address obtaining means for obtaining a network address of the detected access point;
Position data acquisition means for acquiring position data representing the current position of the communication device;
IP address history information acquisition means for acquiring IP address history information associated with the access point and the IP address of the external device used for the previous connection;
Network address history information acquisition means for acquiring network address history information associated with the access point and the network address of the access point used in the previous connection;
Position data history information acquisition means for acquiring position data history information associated with the access point and the position data of the communication device used in the previous connection;
The IP address acquired by the IP address acquisition unit, the access point acquired by the access point acquisition unit, the network address acquired by the network address acquisition unit, the location data acquired by the location data acquisition unit, and the IP Extraction means for extracting an access point from the detected access points based on address history information, the network address history information, and the location data history information;
As a communication program to function communication equipment.

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