JP2008278313A - Radio access point automatic registration communication controller and radio access point automatic registration communication control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce power consumption by performing the optimum data communication control after searching and presenting a radio access point. <P>SOLUTION: The radio access point automatic registration communication controller searches radio access points while performing war driving, only radio access points AP1 and AP2 with which a user's desired SSID (Service Set Identifier) matches are extracted among a plurality of searched radio access points, the locations of the extracted radio access points AP1 and AP2 are registered, and wireless radio communication is performed only when communication can be performed with the registered radio access points AP1 and AP2 to thereby register only the user's desired radio access points AP1 and AP2 among the plurality of searched radio access points. Since wireless radio communication is thereafter performed only when communication can be performed with the radio access points AP1 and AP2, useless power consumption is reduced. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wireless access point automatic registration communication control device and a wireless access point automatic registration communication control method, for example, the latest in a wireless LAN (Local Area Network) or the like by a portable navigation device (hereinafter referred to as a portable NV device). The present invention is suitable when searching for and registering the location of a wireless access point.

Conventionally, in order to search many wireless access points including newly installed wireless access points and present them to users, wireless access is made around the current position according to the reception status in the wireless communication unit that performs wireless communication with the outside. When it is determined whether or not a point exists, and when it is determined that the wireless access point is present, the wireless access point that is not included in the data provided by the operator is recorded in a database by recording the wireless access point together with its location information in the database. There is an access point information collection device that is added as needed (see, for example, Patent Document 1).
JP 2007-43574 A

  In the access point information collecting apparatus having such a configuration, since the user cannot visually check the wireless communication status of the wireless LAN, it is difficult to know where the wireless access point is actually. It is very inefficient to search for a wireless access point while trying to establish a wireless LAN connection each time it is stopped.

  In addition, the user can search for the location of the wireless access point from the homepage established by each carrier (service provider), but there is no way to search if the user does not know various carriers in the first place.

  By the way, in the access point information collecting apparatus having such a configuration, it is possible to solve the above-mentioned problem to some extent by having in advance a location information as a location of the wireless access point as a database. There was a problem that the point installation information could not be handled.

  In the access point information collection device, after searching for many wireless access points including wireless access points and presenting them to the user, if data communication is continued while continuing the wireless LAN connection, power consumption increases. There was a problem that the battery was wasted.

  The present invention has been made in consideration of the above points. A wireless access point automatic registration communication control apparatus and a wireless communication device that reduce power consumption by performing optimal data communication control after searching and presenting a wireless access point An access point automatic registration communication control method is proposed.

  In order to solve such a problem, the present invention searches for a wireless access point while performing wireless wireless communication, extracts only the desired access point desired by the user from among the wireless access points, and determines the position of the extracted desired access point. The current position is calculated by the current position calculation means for obtaining the current position based on the information from the satellite, the position is registered in the predetermined storage means, and only when communication with the desired access point registered in the storage means is possible, By registering the position of the desired access point desired by the user among the wireless access points by controlling to perform wireless wireless communication, wireless wireless communication is performed only when communication with the desired access point is possible. Therefore, data communication after searching for the desired access point It is possible to reduce wasteful power consumption that.

  According to the present invention, a wireless access point is searched while performing wireless wireless communication, and only the desired access point desired by the user is extracted from the wireless access points, and the position of the extracted desired access point is obtained from the satellite. The wireless communication is performed only when the current position is calculated based on the current position calculation means, the position is registered in a predetermined storage means, and communication is possible with the desired access point registered in the storage means. After registering the position of the desired access point desired by the user among the wireless access points, wireless wireless communication is performed only when communication with the desired access point is possible. Reduce unnecessary power consumption in data communication after searching for access points Wireless access point automatic registration communication control apparatus and wireless access which can reduce power consumption by performing optimal data communication control for reducing power consumption as much as possible after searching for and presenting a new wireless access point A point automatic registration communication control method can be realized.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

(1) External configuration of portable NV device In FIG. 1, reference numeral 1 denotes a portable NV device which is portable and can be carried as a whole, and is mainly used in a vehicle. A monitor 3 is provided on the front surface of a rectangular main body 2. In addition, a map screen or the like corresponding to the map data stored in a nonvolatile memory, a hard disk or the like built in the main body 2 can be displayed on the monitor 3.

(2) Circuit Configuration of Portable NV Device As shown in FIG. 2, the portable NV device 1 is operated by the power supplied from the battery 29, and the control unit 20 having a CPU (Central Processing Unit) configuration controls the whole. At the same time, the basic program and various application programs stored in the non-volatile memory 21 are read out and executed on a RAM (Random Access Memory) 22, so that a normal navigation function and a wireless access point automatic registration function and a communication control function described later are performed. Has been made to realize.

  In this portable NV device 1, map data indicating a map of the whole country is stored in the nonvolatile memory 21, and POI (Point Of Interest) data representing points of interest such as various facilities is associated with a position on the map. Stored in advance.

  In addition, the portable NV apparatus 1 is configured to constantly calculate GPS information including latitude, longitude, altitude, etc. by receiving radio waves from GPS (Global Positioning System) hygiene by the GPS unit 23. The received GPS information is sent to the control unit 20.

  The control unit 20 of the portable NV device 1 compares the GPS information supplied from the GPS unit 23 with the map data stored in the non-volatile memory 21, so that the position at which the portable NV device 1 currently exists (ie, the portable NV device 1 exists). The map data of a predetermined range including the vehicle position where the vehicle on which the portable NV device 1 is mounted is present) is read, and a map image of a predetermined magnification representing the vehicle position and its surroundings according to the map data is monitored 2 Are displayed on an LCD (Liquid Crystal Display) 24.

  In addition, the control unit 20 of the portable NV apparatus 1 starts the POI from the position of the vehicle when the POI data is arbitrarily selected as the destination in response to a user operation on the touch panel 25 provided on the surface of the LCD 24 of the monitor 3. An arrival route to the destination corresponding to the data is searched, and a map image representing the arrival route can be displayed on the LCD 24.

  At this time, the control unit 20 of the portable NV apparatus 1 displays a map image representing the arrival route on the LCD 24 and guides the user's driving while the vehicle travels to the destination according to the arrival route via the voice processing unit 26. And voice information for assisting (hereinafter referred to as “navigation”) is generated, and the navigation voice is output from the speaker 27.

  In this way, the portable NV device 1 can provide a navigation function for navigating the vehicle to a destination desired by the user.

  The portable NV device 1 has a wireless communication unit 28 such as IEEE (Institute of Electrical and Electronics Engineers) 802.11 system or Bluetooth (registered trademark), and performs wireless communication with a wireless access point installed outdoors. Various data communications can be realized by accessing a predetermined server via the wireless access point.

(3) Search for Wireless Access Point by War Driving In this portable NV device 1, a so-called wireless access point is searched for while driving the vehicle while the wireless communication function by the wireless communication unit 28 is set to ON. It is designed to perform war driving.

  In practice, as shown in FIG. 3, the control unit 20 of the portable NV apparatus 1 sets the vehicle communication icon P1 indicating the vehicle position of the vehicle and the wireless communication function by the wireless communication unit 28 to the on state when the war drive starts. In this case, a navigation screen G1 is generated in which a wireless communication icon WL1 indicating this and a direction icon D1 indicating the traveling direction of the vehicle are superimposed on a map image around the current position, and this is displayed on the LCD 24 of the monitor 3. .

  Thus, the control unit 20 of the portable NV device 1 easily recognizes to the user that the war driving can be automatically started if the vehicle travels while the wireless communication icon WL1 is displayed together with the own vehicle icon P1. It is made to be able to let you.

  As shown in FIG. 4, when the vehicle starts to travel, the control unit 20 of the portable NV apparatus 1 can perform wireless communication between a plurality of wireless access points installed in the vicinity and the wireless communication unit 28. Upon completion, the presence of a wireless access point is recognized, and wireless access point icons AP1, DAP1, DAP2, AP2, DAP3,... Corresponding to the wireless access points that actually performed wireless communication are sequentially displayed on the map image. The navigation screen G2 generated by superimposing on can be displayed on the LCD 24 of the monitor 3.

  At this time, the control unit 20 of the portable NV apparatus 1 displays all the wireless access point icons AP 1, DAP 1, DAP 2, AP 2, DAP 3,... That can be wirelessly communicated by the wireless communication unit 28. The wireless access point icons AP1 and AP2 of the wireless access point that match the SSID (Service Set Identifier) of the carrier of the contract request that has been registered in advance are displayed with a solid line, but the wireless access that does not match the SSID The point wireless access point icons DAP1 to DAP3 are displayed by broken lines.

  As a result, the control unit 20 of the portable NV apparatus 1 wirelessly possesses the carrier desired by the contract among the plurality of wireless access point icons AP1, DAP1, DAP2, AP2, DAP3,... Displayed via the navigation screen G3. The access point can be visually confirmed.

  Note that the control unit 20 of the portable NV apparatus 1 displays circular circles WA1 and WA2 indicating the communicable range around the wireless access point icons AP1 and AP2 indicated by solid lines. Whether the portable NV device 1 is within a communicable range or not is determined based on the positional relationship between the vehicle icon P1 and the circle WA1 of the wireless access point icon AP1 and the circle WA2 of the wireless access point icon AP2. It is designed to allow intuitive recognition.

(4) Wireless Access Point Automatic Search / Registration Processing Procedure Next, a wireless access point automatic search / registration processing procedure for automatically registering a wireless access point searched for while driving as described above will be described with reference to the flowchart of FIG.

  Actually, the control unit 20 of the portable NV device 1 enters the routine RT1 from the start step of the routine RT1 according to the application program started up from the nonvolatile memory 21 onto the RAM 22, and proceeds to the next step SP1, where wireless communication by the wireless communication unit 28 is performed. While the function is set to ON, so-called war driving is performed to search for surrounding wireless access points while the vehicle is running, and the process proceeds to the next step SP2.

  In step SP2, the control unit 20 of the portable NV apparatus 1 determines whether or not a wireless access point can be found around the own vehicle position while the vehicle is traveling by the wireless communication unit 28.

  If a negative result is obtained here, the control unit 20 of the portable NV apparatus 1 repeats the processing after step SP1 and waits until a wireless access point can be found. On the other hand, when a positive result is obtained in step SP2, the control unit 20 of the portable NV apparatus 1 proceeds to next step SP3.

  In step SP3, the control unit 20 of the portable NV device 1 determines that the portable NV device 1 currently exists based on the GPS information supplied from the GPS unit 23 and the map data stored in the nonvolatile memory 21. The vehicle position (latitude, longitude, etc.) is calculated, and the process proceeds to the next step SP4.

  In step SP4, the control unit 20 of the portable NV apparatus 1 registers the own vehicle position (latitude, longitude, etc.) calculated in step SP3 in the nonvolatile memory 21 as position information of the wireless access point, and proceeds to the next step SP5. Move.

  In step SP5, the control unit 20 of the portable NV apparatus 1 performs filtering by determining whether or not the SSID of the wireless access point registered in step SP4 matches the SSID registered in the nonvolatile memory 21 in advance.

  If an affirmative result is obtained here, this means that the wireless access point owned by the carrier to whom the contract is desired and that the wireless access point is a target for actively performing wireless data communication, At this time, the control unit 20 of the portable NV apparatus 1 proceeds to the next step SP6.

  In step SP6, since the control unit 20 of the portable NV apparatus 1 is a wireless access point owned by the carrier to whom the contract is desired, the wireless access point icons AP1 and AP2 are displayed on the map based on the latitude and longitude of the GPS information. Then, the process proceeds to the next step SP8, and the wireless access point automatic registration processing procedure is terminated.

  On the other hand, if a negative result is obtained in step SP5, this means that the SSID of the wireless access point registered in the nonvolatile memory 21 does not match the SSID registered in the nonvolatile memory 21 in advance, that is, the user This indicates that this is a wireless access point of a carrier that is not desired as a contract destination and is not a target for actively performing wireless data communication. At this time, the control unit 20 of the portable NV apparatus 1 proceeds to the next step SP7. .

  In step SP7, the control unit 20 of the portable NV apparatus 1 does not set the wireless access points DAP1 to DAP3 to the latitude / longitude of the GPS information because the wireless access points that do not match the SSID are not targets for wireless data communication for the user. Based on this, a broken line is displayed on the map, and then the process proceeds to the next step SP8, where the wireless access point automatic search registration process procedure is terminated.

  Note that the control unit 20 of the portable NV apparatus 1 actually displays the wireless access point icons AP1, DAP1, DAP2, AP2, and DAP3 on the map based on the vehicle position (latitude, longitude, etc.). It will be difficult to see because it overlaps with the travel route of the car icon P1.

  Therefore, the control unit 20 of the portable NV apparatus 1 accesses the server managed by the contracted carrier via any one of the wireless access points, and acquires accurate latitude / longitude information for the wireless access point with the matching SSID from the server. Then, the wireless access point icons AP1 and AP2 are displayed again at positions on the map corresponding to the latitude / longitude information.

  Thereby, the control unit 20 of the portable NV apparatus 1 does not display the wireless access point icons AP1 and AP2 on the arrival route for navigating the vehicle to the destination desired by the user, but the wireless of the carrier that is the contract destination of the user. By displaying the access point icons AP1 and AP2 at the correct location on the map and allowing the user to visually check the installation location, wireless access is possible without impairing the navigation function that guides the destination via the arrival route. An accurate position of the points AP1 and AP2 can be provided.

(5) Communication Control Processing Procedure Performed by Limiting Communication Control Area Next, after the controller 20 of the portable NV device 1 sequentially registers a plurality of wireless access points that can be searched during war driving as described above. A communication control process for controlling the timing of performing data communication with the server via these wireless access points will be described.

  As shown in FIG. 6, the control unit 20 of the portable NV apparatus 1 enters the routine RT2 from the start step of the routine RT2 according to the application program launched from the nonvolatile memory 21 onto the RAM 22, and proceeds to the next step SP11. It is determined whether or not the portable NV device 1 is located within the communicable range of the wireless access point automatically registered during the war driving.

  For example, as illustrated in FIG. 7, the control unit 20 of the portable NV device 1 assumes that the communicable range is, for example, a radius of 50 m with respect to the wireless access point icons AP1 and AP2 displayed on the navigation screen G2. The communicable range is displayed by circles WA1 and WA2, and when the vehicle icon P1 exists within the range of the circles WA1 and WA2, the user is informed that the communicable range of the wireless access point is present. It can be recognized.

  Therefore, if a negative result is obtained in step SP11, this means that the own vehicle icon P1 does not exist within the range of the circles WA1 and WA2, and the portable NV device 1 is located outside the communicable range for the wireless access points AP1 and AP2. At this time, the control unit 20 of the portable NV apparatus 1 waits until the vehicle icon P1 is positioned within the range of the circles WA1 and WA1.

  On the other hand, if a positive result is obtained in step SP11, this means that the vehicle icon P1 is positioned within the circles WA1 and WA2 of the wireless access point icons AP1 and AP2 while the vehicle is running, and the wireless access point communication is performed. In this case, the control unit 20 of the portable NV apparatus 1 proceeds to the next step SP12.

  In step SP12, the control unit 20 of the portable NV apparatus 1 sets the wireless communication function by the wireless communication unit 28 to the ON state because the own vehicle icon P1 is within the range of the circle WA1 or WA2. Alternatively, the wireless communication unit 28 starts wireless communication connection with the wireless access point installed within the range of WA2, and the process proceeds to the next step SP13.

  In step SP13, the control unit 20 of the portable NV apparatus 1 performs data communication with a predetermined server via a wireless access point, so that it is within the range of the circles WA1 and WA1, which are communicable ranges, as long as the vehicle is running. Since only time can exist, priority is given to, for example, RSS (Rich Site Summary), e-mail, podcast music data, etc., data communication is performed according to the priority, and the process proceeds to the next step SP14.

  In this case, since the control unit 20 is traveling in a vehicle, it takes into account that the time for performing data communication with a predetermined server via a wireless access point is very short, and RSS, e-mail, music data with a small data amount By setting the priorities in the order, etc., even in a short time, the data can be completely acquired without being lost.

  RSS is metadata in which headlines and summaries of this homepage are described in XML (eXtensible Markup Language) format when connecting to a homepage on the Internet, and is mainly used to publish site update information. It is what has been.

  In step SP14, the control unit 20 of the portable NV apparatus 1 determines whether or not the wireless communication unit 28 still exists within the communicable range of the wireless access point based on whether or not the wireless communication unit 28 can be connected to the wireless access point. judge.

  If an affirmative result is obtained here, this means that the vehicle icon P1 is within the range of the circle WA1 or WA2, that is, the vehicle is still within the communicable range of the wireless access point, and the wireless communication unit 28 In this case, the control unit 20 of the portable NV apparatus 1 returns to step SP12 and sets the wireless communication function of the wireless communication unit 28 to the on state. Continue data communication.

  On the other hand, if a negative result is obtained in step SP14, this means that the own vehicle icon P1 moves outside the range of the circle WA1 or WA2, that is, the vehicle exists outside the communicable range of the wireless access point, This indicates that the wireless communication unit 28 and the wireless access point are not in a state where communication connection is possible. At this time, the control unit 20 of the portable NV apparatus 1 proceeds to the next step SP15.

  In step SP15, the control unit 20 of the portable NV apparatus 1 stops the battery 29 by switching the wireless communication function of the wireless communication unit 28 to the off state because the wireless communication unit 28 is not communicable with the wireless access point. Power consumption is reduced, the process proceeds to the next step SP16, and the communication control processing procedure is terminated.

(6) Operation and Effect In the configuration described above, the control unit 20 of the portable NV apparatus 1 sets the wireless communication function by the wireless communication unit 28 to the on state, searches for a wireless access point while wardriving, When 28 is able to perform wireless communication with a wireless access point installed in the vicinity of the vehicle, it recognizes the presence of the wireless access point, and stores the GPS information and the nonvolatile memory 21 at that time. The own vehicle position (latitude, longitude, etc.) of the portable NV device 1 calculated based on the map data is registered in the nonvolatile memory 21 as the position information of the wireless access point.

  Thus, whenever the control unit 20 of the portable NV apparatus 1 finds a wireless access point while performing war driving, the position information of the wireless access point can be registered in the nonvolatile memory 21. It is possible to register the latest wireless access point that actually exists in the vicinity without overlooking it as a communication target.

  Also, the control unit 20 of the portable NV device 1 uses a solid line on the map for a wireless access point that matches a previously registered SSID among a plurality of wireless access points registered in the nonvolatile memory 21. By displaying on the LCD 24 as the wireless access point icons AP1 and AP2 shown, and displaying on the LCD 24 as wireless access point icons DAP1 to DAP3 indicated by broken lines on the map for wireless access points that do not match the SSID, It is possible to make the user visually check in a state where the wireless access point owned by the contracted carrier is easily recognized by the user.

  In this way, the control unit 20 of the portable NV apparatus 1 registers the wireless access point searched during the war driving in the nonvolatile memory 21 and then wirelessly accesses the map on the LCD 24 when the vehicle travels again on the same route. Point icons AP1, DAP1, DAP2, AP2, DAP3,... Are displayed with solid lines or broken lines, and the vehicle icon P1 is located within the circle WA1 of the wireless access point icon AP1 or the circle WA2 of the wireless access point icon AP2. When the wireless communication unit 28 recognizes that it can communicate with the wireless access point, the wireless communication function of the wireless communication unit 28 is set to the on state, and as long as the communication connection is possible, the wireless communication unit 28 can be connected via the wireless access point. Data communication with the server.

  Therefore, the control unit 20 of the portable NV apparatus 1 performs the war driving while the wireless communication function by the wireless communication unit 28 is set to the on state until the wireless access point is searched and registered, but the server during the subsequent traveling is performed. When performing data communication with the wireless communication unit 28, the wireless communication function by the wireless communication unit 28 is set to the on state only when it is located within the communicable range of the wireless access point registered in advance, and is located outside the communicable range. At this point, the wireless communication function by the wireless communication unit 28 is switched to the off state, so that processing from searching for a wireless access point to data communication via the wireless access point is executed with minimum power consumption. Can do.

  According to the above configuration, the control unit 20 of the portable NV apparatus 1 performs the war driving while setting the wireless communication function by the wireless communication unit 28 to the on state, and registers the user desired wireless access point using the SSID. By setting the wireless communication function to the on state only when the wireless access point is located within the communicable range of the wireless access point and performing data communication, it is possible to automatically register new wireless access points that increase one after another, and It is possible to reduce wasteful power consumption during data communication.

(7) Other Embodiments In the above-described embodiment, the wireless access point icons AP1 and AP2 of wireless access points that match the SSID of one carrier registered in advance in the nonvolatile memory 21 are indicated by solid lines. Although the case of displaying is described, the present invention is not limited to this, and the control unit 20 of the portable NV apparatus 1 stores, for example, the SSIDs of two carriers “AB Company” and “XY Company” in the nonvolatile memory 21. For example, as shown in FIG. 8A, a window screen W1 indicating the number of wireless access points corresponding to the two carriers is overlaid on the map and displayed in FIG. 8B. As shown, the “Yes” button B1 and the “No” button B2 together with the text “Do you want to sign a contract with AB company” with the larger number of wireless access points? A window screen composed of a “personal information input field” for exchanging a contract to use the wireless access point of “AB company” in response to the selection of the “Yes” button B1. W3 may be displayed overlaid on the map.

  In this case, the control unit 20 of the portable NV apparatus 1 prompts the user to make a contract with a carrier having a large number of installed wireless access points among the plurality of wireless access points searched for while driving, and the operation of the LCD 24 is also performed. It can be easily executed on the screen. When the portable NV device 1 makes a wireless access point contract, the portable NV device 1 displays the window screen W3 on the personal computer when the portable NV device 1 is connected to the personal computer. You may make it.

  In the above-described embodiment, the case where the wireless access point icons DAP1 to DAP3 of wireless access points that do not match the SSID are displayed with broken lines, but the present invention is not limited to this, and the wireless access point icon is not limited thereto. Various other display forms such as displaying smaller than AP1 and AP2 or not displaying at all may be used.

  Further, in the above-described embodiment, the wireless communication function by the wireless communication unit 28 is set to the on state only when the portable NV device 1 is located in the communicable range of the wireless access point, and the wireless access point is connected via the wireless access point. However, the present invention is not limited to this. For example, the portable NV device 1 is located on the premises of a house or the premises of a company that can reliably communicate with a wireless access point. Only when it is determined based on GPS information that the wireless communication function by the wireless communication unit 28 is set to the on state, data communication with the server via the wireless access point, Wireless communication unit only when it is within the premises and within a predetermined time zone by the timer function of the control unit 20. Set the wireless communication function by preparative 28 in the ON state may be via the wireless access points to communicate servers and data.

  Furthermore, in the above-described embodiment, if the portable NV device 1 is located in the communicable range of the wireless access point, the wireless communication function by the wireless communication unit 28 is set to the on state even when the vehicle is traveling. However, the present invention is not limited to this, and the portable NV device 1 is located within the communicable range of the wireless access point and is supplied from the vehicle. Only when it is recognized that the vehicle is at a stop or below a predetermined traveling speed according to the speed information calculated or the speed information calculated based on the sensor output from the acceleration sensor mounted on the portable NV device 1. A wireless communication function by the communication unit 28 is set to an on state, and the server is connected via the wireless access point. It may be data communication. Thereby, the portable NV apparatus 1 can reduce errors in data received from the server.

  Further, in the above-described embodiment, the control unit 20 of the portable NV apparatus 1 executes the above-described wireless access point automatic registration processing procedure and communication control processing procedure according to the application program stored in the nonvolatile memory 21. However, the present invention is not limited to this, and the wireless access point automatic registration processing procedure described above according to an application program installed from a recording medium, an application program downloaded from the Internet, and other application programs installed by various routes. The communication control processing procedure may be executed.

  Furthermore, in the above-described embodiment, the GPS unit 23 as the current position calculation means, the wireless access point search means, the control part 20 as the filter means and the registration means, the control part 20 as the communication control means, and the wireless communication unit 28 Although the case where the portable NV device 1 as the wireless access point automatic registration communication control device of the present invention is configured has been described, the present invention is not limited to this, and the present position calculation means including various other circuit configurations, wireless You may make it comprise a wireless access point automatic registration communication control apparatus by an access point search means, a filter means, a registration means, and a communication control means.

  The wireless access point automatic registration communication control device and the wireless access point automatic registration communication control method of the present invention include, for example, a notebook personal computer equipped with a navigation function, a game machine equipped with a navigation function, a navigation, in addition to a portable NV device. The present invention can be applied to various other mobile devices such as a mobile phone equipped with a function.

It is a rough-line perspective view which shows the external appearance structure of a portable NV apparatus. It is a rough-line block diagram which shows the circuit structure of a portable NV apparatus. It is a basic diagram which shows the navigation screen at the time of a war drive start. It is a basic diagram which shows the navigation screen during a war drive. It is a flowchart which shows a wireless access point automatic registration processing procedure. It is a flowchart which shows a communication control processing procedure. It is a basic diagram which shows a communication control area. It is a basic diagram which shows the navigation screen during the war driving in other embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Portable NV apparatus, 2 ... Main part, 3 ... Monitor, 20 ... Control part, 21 ... Nonvolatile memory, 22 ... RAM, 23 ... GPS unit, 24 ... LCD, 25 ... Touch panel, 26... Voice processing unit, 27... Speaker, G1 to G4.

Claims (11)

Current position calculation means for obtaining the current position based on information from the satellite;
A wireless access point searching means for searching for a wireless access point capable of communication while performing wireless wireless communication by the wireless communication means;
Filter means for extracting only the desired access point desired by the user from the wireless access points searched by the wireless access point search means;
Registration means for calculating the position of the desired access point extracted by the filter means by the current position calculation means and registering the position in the storage means;
Communication control means for performing wireless wireless communication by the wireless communication means only when communication with the desired access point registered in the storage means by the registration means is possible. Registered communication control device. The wireless access according to claim 1, wherein the filter means extracts only the desired access point based on an SSID (Service Set Identifier) of a carrier desired by the user among the plurality of wireless access points. Point automatic registration communication control device. The wireless access point automatic registration communication control device is:
The wireless access point according to claim 1, further comprising access point icon display control means for visually displaying the plurality of wireless access points searched by the wireless communication means as icons on a predetermined navigation image. Automatic registration communication control device. The wireless access point automatic registration communication according to claim 3, wherein the access point icon display control means visually displays only the icon of the desired access point among the plurality of wireless access points on the navigation image. Control device. The wireless access point automatic registration communication control device is:
An access point icon display control means for indicating a communicable range at the plurality of wireless access points by a circular circle when the plurality of wireless access points searched by the wireless communication means are visually displayed on a predetermined navigation image; The wireless access point automatic registration communication control apparatus according to claim 1, further comprising: The communication control means determines that communication with the desired access point is possible when the current position calculating means recognizes that the desired access point registered by the registration means is approaching, and the wireless radio The wireless access point automatic registration communication control device according to claim 1, wherein communication is performed. The communication control means, when recognizing that the vehicle is at a stop or below a predetermined traveling speed according to the speed information supplied from the vehicle or the speed information calculated based on the sensor output from the acceleration sensor, The wireless access point automatic registration communication control apparatus according to claim 1, wherein the wireless wireless communication is performed by determining that communication with a desired access point is possible. The wireless access point according to claim 1, wherein the communication control means automatically starts data communication with a predetermined server when the wireless wireless communication is performed with respect to the desired access point. Automatic registration communication control device. The communication control means, when automatically starting data communication with the predetermined server, performs the data communication in consideration of a priority set for a data type to be a communication target. Item 9. The wireless access point automatic registration communication control device according to Item 8. The communication control means has a timer function, and determines that communication is possible with the desired access point when the time set by the user by the timer function is reached, and performs the wireless wireless communication. The wireless access point automatic registration communication control device according to claim 1. A wireless access point search step for searching for a wireless access point by wireless access point search means while performing wireless wireless communication by the wireless communication means;
A filtering step of extracting only a desired access point desired by the user from the wireless access points searched in the wireless access point search step by a predetermined filter means;
A registration step in which the position of the desired access point extracted in the filtering step is calculated by a current position calculation means for obtaining a current position based on information from a satellite, and the position is registered in a storage means by a predetermined registration means; ,
Communication control for controlling the wireless communication to be performed via the wireless communication means by the predetermined communication control means only when communication with the desired access point registered in the storage means in the registration step is possible. And a wireless access point automatic registration communication control method comprising the steps of:

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