JP2010038587A - Onboard device, navigation system, and method of controlling the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an onboard device, which enable recognition of a current position when a mobile device starts guiding, and to provide a navigation system and a method of controlling the same. <P>SOLUTION: The onboard device, the navigation system, and method of controlling the same include; a vehicle guiding means 62 for guiding a vehicle to a first destination being a destination of the vehicle, and a position transmitting means 66 for transmitting information on the current position of the vehicle to the mobile device for guiding a user to a second destination, when the current position of the vehicle is within a prescribed range including the first destination. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an in-vehicle device, a navigation system, and a control method thereof, and particularly to an in-vehicle device, a navigation system, and a control method thereof that transmit information related to the current position of the vehicle from the in-vehicle device to a portable device.

  In-vehicle navigation that performs navigation to a destination is widely used. In-vehicle navigation recognizes the current location by a GPS (Global Positioning System) receiver and guides the vehicle to a destination. In addition, a navigation device that includes a GPS receiver in a portable device such as a cellular phone and guides the user to a destination is also used.

Patent Documents 1 to 3 disclose systems that transfer route search results, navigation information, or position information between an in-vehicle device (in-vehicle navigation device) and a portable device (portable navigation device).
JP 2002-181555 A JP 2005-72854 A JP 2003-161622 A

  According to these systems, after the vehicle-mounted device guides the vehicle to the parking lot near the destination and the user gets off the vehicle, the portable device can guide the user to the destination. However, for example, when the user gets off the vehicle, for example, when the user parks the vehicle in an underground parking lot and the user gets off, and the portable device cannot receive the GPS signal, the user arrives at the parking lot. However, guidance to the user's final destination, for example, a facility, etc. is delayed or cannot be provided. Further, when the user returns from the final destination to the parking position, the position of the parking lot may not be known. In this case, the serviceability as a navigation system is low. In order to solve this, when the user gets off the vehicle, the in-vehicle device may transmit the current position of the vehicle to the portable device. However, for example, in a system that determines that the user has got off when communication from the vehicle to the portable device is interrupted, information can be transferred from the in-vehicle device to the portable device after determining that the user has got off the vehicle. Can not. In addition, a method of constantly transferring the position information calculated by the in-vehicle device to the portable device is also conceivable, but this method has a problem that communication addition becomes large.

  The in-vehicle device, the navigation system, and the control method thereof have been made in view of the above problems, and the mobile device can surely recognize the current position when the guidance is transferred from the external device including the in-vehicle device to the mobile device. An object of the present invention is to provide an in-vehicle device, a navigation system, and a control method thereof that can reduce a communication load between an external device (an in-vehicle device or a center) and a portable device.

  The vehicle-mounted device includes vehicle guidance means for guiding the vehicle to a first destination (for example, a parking lot around the final destination) that is the destination of the vehicle, and the current position of the vehicle includes the first destination. And a position transmission means for transmitting information relating to the current position of the vehicle to a portable device that guides the user to a second destination (for example, a final destination) when within a predetermined range. . According to this vehicle-mounted device, even when the mobile device cannot uniquely detect the current position when the user gets off the vehicle, information about the current position of the vehicle is transmitted from the vehicle-mounted device to the mobile device. The device can recognize the current position.

  In the above configuration, when the current position of the vehicle is within a predetermined distance from the first destination (for example, a parking lot around the final destination), the position transmitting unit transmits the current position of the vehicle to the portable device. It can be set as the structure which transmits the information regarding periodically.

  In the above configuration, the position transmission means is a case where the current position of the vehicle is within a predetermined distance from the first destination (for example, a parking lot around the final destination), and the vehicle has When the vehicle is moved by a predetermined distance or more from the position of the vehicle when the information on the current position is transmitted, the information on the current position of the vehicle can be transmitted to the portable device. According to this configuration, since the information is not updated unless the vehicle moves more than a predetermined distance, it is possible to reduce the number of times of transmitting information related to the current position of the vehicle, and to reduce unnecessary processing load in the in-vehicle device. Can be made.

  In the above-described configuration, receiving means for receiving usage information indicating that the current position is used from the portable device is provided, and when the receiving means receives the usage information, the position transmitting means Even when the position is within a predetermined range including the first destination (for example, a parking lot around the final destination), information regarding the current position may not be transmitted to the portable device. According to this configuration, it is possible to reduce the troublesomeness for the user to send the information related to the current position even after using the current position information, and to reduce the processing load due to unnecessary processing of the in-vehicle device.

  In the above configuration, the mobile device may be a mobile phone.

  The navigation system includes vehicle guidance means for guiding a vehicle to a first destination that is the destination of the vehicle (for example, a parking lot around a final destination), and a current position of the vehicle includes the first destination. When it is within the predetermined range, a vehicle-mounted device including a position transmission unit that transmits information related to the current position of the vehicle to the portable device, and a user from the current position to a second destination (for example, a final destination) And a portable device including user guidance means for guiding. According to this navigation system, even when the mobile device cannot uniquely detect the current position, the mobile device can recognize the current position.

  The said structure WHEREIN: The user guidance means of the said portable apparatus can be set as the structure which guides the said user to the said current position, when the user is away from the parking position and the said user's position is not in the said current position.

  In the above configuration, the in-vehicle device has information on the first destination when the first destination (for example, a parking lot around the final destination) and the second destination (for example, the final destination) are different. Destination information transmitting means for transmitting information to the portable device, wherein the guidance means of the portable device is not valid when the coordinate position at which the current position can be detected becomes abnormal (for example, 0). When it is determined, the user can be guided to the first destination.

  The control method of the navigation system is a control method of a navigation system including a portable device and an in-vehicle device, wherein the in-vehicle device moves the vehicle to a first destination (for example, around the final destination). A parking lot), a step of transmitting information on the current position of the vehicle to a portable device when the current position of the vehicle is within a predetermined range including the first destination, and the portable device Guiding the user from the current position to a second destination (for example, a final destination). According to the control method of the navigation system, even when the mobile device cannot independently detect the current position, the mobile device can recognize the current position.

  According to this configuration, when the user approaches the first destination (for example, a parking lot around the final destination), for example, the parking lot, the mobile device is uniquely transmitted by transmitting information on the current position to the mobile device. Even if the current position cannot be detected, the portable device can recognize the current position. Accordingly, since the portable device can guide the user from the first destination to the second destination (for example, the final destination), for example, the facility without any delay, the serviceability of the navigation system is improved. Furthermore, since the first destination (for example, the location of the parking lot around the facility) information is stored in the mobile phone, the user returns from the second destination (for example, the location of the facility) information to the first destination. In doing so, the first destination can be used.

  Embodiments will be described below with reference to the drawings.

  FIG. 1 is a block diagram of the navigation system according to the first embodiment. Referring to FIG. 1, a navigation system 100 includes an in-vehicle device 10 that is an in-vehicle navigation device and a portable device 30 that is, for example, a mobile phone. Information can be transmitted and received between the in-vehicle device 10 and the portable device 30 using, for example, wireless communication 52 such as Bluetooth communication or optical communication such as infrared rays. The portable device 30 can communicate with the center server (CP) 50 via the mobile communication network 54.

  The in-vehicle device 10 includes a control unit 12, a storage unit 14, a GPS receiving unit 16, an interface (IF) unit 24, a human interface (HMI) unit 18, a display unit 20, and an operation unit 22. The storage unit 14 is, for example, a hard disk unit, and stores map information that is information about map data, destination information that is information about destinations, and the like. The storage unit 14 outputs map information and destination information to the control unit 12. The storage unit 14 stores destination information acquired from the control unit 12. The GPS receiving unit 16 recognizes the vehicle position from the GPS signal and outputs information related to the vehicle position to the control unit 12. In addition to the GPS signal, the GPS receiver 16 can recognize the position of the host vehicle using the independent navigation information from the independent navigation unit (not shown). The HMI unit 18 is an interface between the display unit 20 and the operation unit 22 and the control unit 12. The display unit 20 is, for example, a liquid crystal screen, and displays a map or a menu list by a signal from the control unit 12. The operation unit 22 is, for example, a touch panel or a button, and outputs an operation signal to the control unit 12. For example, the menu can be selected by operating the operation unit 22 by the user. The IF unit 24 transmits information acquired from the control unit 12 to the portable device 30. Further, the information received from the portable device 30 is output to the control unit 12.

  The portable device 30 includes a control unit 32, a storage unit 34, a GPS reception unit 36, an IF unit 44, an HMI unit 38, a display unit 40, an operation unit 42, and a telephone IF unit 46. The telephone IF unit 44 is connected to the mobile communication network 54 and transmits and receives information between the control unit 32 and the outside. The control unit 32 can obtain the latest map data and the like from the center server 50 via the mobile communication network 54 and the telephone IF unit 46, for example. The function of each other part is the same as that of the vehicle-mounted device 10, and the description thereof is omitted.

  FIG. 2 is a flowchart for explaining the operation of the navigation system according to the first embodiment. Referring to FIG. 2, the control unit 32 of the portable device 30 sets a destination based on the input from the operation unit 42 or the destination list stored in the storage unit 34 (step S10). The control unit 32 transmits the destination information to the in-vehicle device 10 via the IF unit 44 (step S12). The control unit 12 of the in-vehicle device 10 acquires destination information via the IF unit 24. When the control unit 12 recognizes the start of travel of the vehicle (step S14), the control unit 12 acquires information on the vehicle position from the GPS reception unit 16 and information on map data from the storage unit 14, and displays the map on the display unit 20. The route to the destination and the destination are displayed, and the vehicle is guided to the destination (step S16). When the control unit 12 recognizes that the current position of the vehicle is around the destination (step S18), the control unit 12 transmits current position information, which is information related to the current position of the vehicle, to the portable device 30 via the IF unit 24. The control unit 32 of the portable device 30 acquires information on the current position via the IF unit 44. The control unit 32 guides the user to the destination as with the control unit of the in-vehicle device 10 (step S22). The control part 32 will complete | finish guidance, if the arrival to the destination is recognized (step S24).

  As described above, in the navigation system according to the first embodiment, destination information and information on the current position are communicated between the mobile device 30 and the in-vehicle device 10. Thereby, the vehicle-mounted device 10 can guide the vehicle to the destination set by the portable device 30. In addition, after parking the vehicle, the mobile device 30 can guide the user to the destination.

  If the vehicle has arrived around the destination (step S18), the in-vehicle device 10 transmits information related to the current position to the portable device 30 (step S20). Thereby, when the user gets off the vehicle, the portable device 30 can recognize the current position of the vehicle. Therefore, even when the mobile device 30 cannot receive a GPS signal, such as when the user gets off the vehicle at the underground parking lot, the user can check the current position.

  FIG. 3 is an example of another operation of the navigation system according to the first embodiment. With reference to FIG. 3, the control part 12 of the vehicle-mounted apparatus 10 sets a destination (step S11). After starting the vehicle guidance, the control unit 12 transmits the destination information to the portable device 30 via the IF unit 24 (step S26). The other steps are the same as those in FIG.

  Hereinafter, the details of the first embodiment will be described by taking the case of FIG. 3 as an example.

  FIG. 4 is a functional block diagram of the in-vehicle device 10. The control unit 12 and the like of the in-vehicle device 10 function as a destination setting unit 60, a vehicle guide unit 62, a destination transmission unit 64, and a position transmission unit 66. The storage unit 14 functions as the storage unit 70. The storage means 70 stores map information that is information relating to map data, a destination list that may be selected as a destination, a parking lot list around the destination, and the like. The destination setting means 60 sets the first destination and the second destination based on the map information stored in the storage means 70. The first destination is a destination of the vehicle, for example, a parking lot near the user's final destination. The second destination is the user's final destination. The first destination and the second destination may be the same. The information on the first destination and the second destination includes, for example, information on the latitude, longitude, and height of the first destination, and may include an address, a telephone number, a facility name, and the like. The destination setting means 60 causes the storage means 70 to store information relating to the first destination and the second destination.

  The vehicle guidance means 62 guides the vehicle to the first destination based on the information on the vehicle position output from the GPS receiver 16, the map information in the storage means 70 and the information on the first destination. The destination transmission unit 64 acquires information on the first destination and the second destination from the storage unit 70, and corresponds to the start of the guidance by the vehicle guide unit 62, and the first destination and the destination via the IF unit 24. Information related to the second destination is transmitted to the mobile device 30. The position transmission unit 66 transmits the current position information to the portable device 30 when the vehicle arrives around the first destination.

  FIG. 5 is a functional block diagram of the portable device 30. The control unit 32 and the like of the portable device 30 function as the receiving unit 80 and the user guide unit 82. The storage unit 34 functions as the storage unit 90. The storage means 90 stores map information and the like. The receiving unit 80 acquires information on the first destination and the second destination and current location information via the IF unit 44. The user guidance unit 82 guides the user to the second destination based on the information on the vehicle position output from the GPS receiver 36, the map information in the storage unit 90, and the information on the second destination.

  6 to 9 and 12 are flowcharts showing the operation of the in-vehicle device 10. This mainly corresponds to steps S14 and S26 in FIG. FIG. 10A to FIG. 10C are diagrams showing screens displayed on the display unit 20. FIG. 11A to FIG. 11C are diagrams showing each piece of information stored in the storage unit 70. FIG. 13 is a flowchart showing the operation of the portable device. Referring to FIG. 6, destination setting means 60 determines whether to perform POI (position information) search (step S30). When the user turns on the POI search switch using the operation unit 22, the destination setting unit 60 determines to perform the POI search.

  In the case of Yes, referring to FIG. 7, the destination setting means 60 searches the POI position from the destination list in the storage means 70, and selects the POI position (for example, POI position X) to be aimed (step S50). ). This POI position is the position that the user will ultimately make as the destination, and is the position that should become the second destination. Referring to FIG. 7, destination setting means 60 displays a map near POI position X (step S52). Referring to FIG. 7, destination setting means 60 clears the previous first destination and second destination on the map displayed on display unit 20 (step S54). The destination setting means 60 displays the POI position X on the map displayed on the display unit 20 (step S56). Referring to FIG. 10A, the display unit 20 displays the POI position X on the map with a symbol such as X, for example. End and return to step S30.

  Referring to FIG. 6, if the answer is No in step S30, the destination setting means 60 determines whether to search for a parking lot (step S32). For example, when the user touches the display of the surrounding parking lot on the screen of FIG. 10A, the destination setting means 60 determines to search for the parking lot. In the case of Yes, referring to FIG. 8 and FIG. 11A, the destination setting unit 60 stores the POI position X in the storage unit 70 as the selected POI position (step S60). With reference to FIG. 8 and FIG. 10B, the destination setting unit 60 acquires the parking lot list near the POI position X from the storage unit 70, and displays the parking lot list on the display unit 20 (step S62). When the user touches one of the parking lot lists on the screen of FIG. 10B, the touched parking lot is selected. For example, a parking lot at the parking lot position Y is selected. With reference to FIG. 8 and FIG. 10 (c), the destination setting means 60 acquires the map information around the selected parking lot from the storage means 70, and displays the map on the display unit 20 (step S64). The parking lot position Y is displayed with a symbol such as P, for example. With reference to FIG. 8 and FIG. 11A, the destination setting means 60 stores the parking lot position Y in the storage means 70 as the selected parking lot position (step S66). End and return to step S30.

  Referring to FIG. 6, in the case of No in step S <b> 32, the destination setting unit 60 determines whether the map displayed on the display unit 20 has been scrolled (step S <b> 34). The user can operate the operation unit 22 and scroll the map to set the destination. In the case of Yes, the destination setting means 60 clears the POI position X and the parking lot position Y (step S40). End and return to step S30.

  Referring to FIG. 6, in the case of No in step S <b> 34, the destination setting unit 60 determines whether to set a destination (step S <b> 36). For example, when the user touches the display of a new destination on the screen of FIG. 10C, the destination setting unit 60 determines to set the destination. In the case of Yes, with reference to FIG. 9, the destination setting means 60 sets the 1st destination which is the destination of a vehicle (step S70). For example, the position of the cursor + on the map when the user touches the display of the new destination on the screen of FIG. 10C is set as the first destination. The destination setting means 60 determines whether the first destination is the parking lot position Y (step S72). In the case of Yes, the destination setting means 60 sets the POI position (for example, POI position X) selected in step S50 as the second destination (step S76). In the case of No, the destination setting means 60 sets the first destination as the second destination (step S74). The destination setting means 60 stores the first destination and the second destination in the storage means 70 (step S78). End and return to step S30.

  In the case of Yse in step S72 of FIG. 9, since the first destination is the parking lot position Y, the user goes off to the POI position X after getting off the vehicle. Therefore, as shown in FIG. 11B, the storage unit 70 stores the parking lot position Y as the first destination and the POI position X as the second destination. In the case of No in step S72, the first destination is a set position Z other than the parking lot position Y. In this case, the user has set a place other than the parking lot. Therefore, as shown in FIG. 11C, the first destination and the second destination have the same set position Z.

  With reference to FIG. 6, in the case of No in step S <b> 36, the vehicle guide means 62 starts guiding the vehicle to the first destination. The destination transmission unit 64 determines whether the vehicle guidance unit 62 has started guidance of the vehicle (step S38). In the case of Yse, the destination transmission unit 64 causes the IF unit 24 to transmit information regarding the first destination and the second destination to the portable device 30 (step S42). End and return to step S30. If No in step S38, the process returns to step S30.

  FIG. 12 is a flowchart showing the processing of the in-vehicle device 10 while the vehicle guiding means 62 guides the vehicle, and corresponds to steps S16, S18 and S20 of FIG. Referring to FIG. 12, the vehicle guidance means 62 detects the current position of the vehicle based on the current position information from the GPS receiver 16 (step S80). The position transmitting unit 66 determines whether the current position of the vehicle is around the first destination (step S82). If the current position of the vehicle is within a predetermined range including the first destination, the current position is determined to be around the first destination. Here, the predetermined range is, for example, a range in which the distance between the current position and the first target position is within a predetermined distance. Further, the map data can be divided into a plurality of blocks in advance, and a block including the first destination can be set as a predetermined range.

  In step S <b> 82, in the case of Yes, the position transmission unit 66 transmits the current position information to the portable device 30. At this time, the position transmitting means 66 can transmit the current position information periodically (for example, every 5 seconds). End and return to step S80. If no in step S82, the process ends and returns to step S80.

  FIG. 13 is a flowchart corresponding to steps S22 to S26 of FIG. With reference to FIG. 13, the receiving means 80 receives the information regarding the 1st destination and the 2nd destination transmitted from the vehicle equipment 10 in step S42 of FIG. 6 (step S90). The receiving unit 80 receives the current position information transmitted from the in-vehicle device 10 in step S84 in FIG. 12 (step S92). The user guidance unit 82 guides the user to the second destination (step S94). The user guidance unit 82 determines whether to return to the vehicle (step S96). This corresponds to the case where the user returns to the vehicle after arriving at the second destination or during the guidance. In the case of Yes, the user guidance unit 82 determines whether the current position information is valid (step S98). If the receiving unit 80 has not received the current position information, it is determined that the current position information is invalid. If no in step S96, the process ends.

  If Yes in step S98, the user guidance unit 82 guides the user to the current position. The current position at this time is the current position corresponding to the latest current position information received by the receiving unit 80. In the case of No in step S98, the user guidance unit 82 determines whether the first destination information is valid (step S102). For example, when the receiving unit 80 has not received the first destination information, it is determined that the first destination information is invalid. If no, the process ends. In the case of Yes, the user guidance means 82 guides the user to the first destination (step S104). The process ends when the user arrives at the current position or the first destination.

  According to the first embodiment, as in steps S82 and S84 of FIG. 12, the position transmitting unit 66 causes the mobile device 30 to store the current position of the vehicle when the current position of the vehicle is within a predetermined range including the first destination. Send information. Thereby, when the user gets out of the vehicle, even when the GPS receiving unit 36 of the mobile device 30 cannot detect the current position, the user guide means 82 of the mobile device 30 can recognize the current position.

  If the mobile device 30 does not recognize the position of the vehicle when the user tries to return to the vehicle after reaching the second destination or on the way to the second destination, the user guide means 82 Unable to guide the vehicle. According to the first embodiment, the position transmission unit 66 transmits the current position information of the vehicle to the portable device 30. Thereby, like step S100 of Drawing 13, user guidance means 82 of portable device 30 can guide a user to the current position of vehicles based on current position information.

  In addition, as in step S84 in FIG. 12, the position transmission unit 66 preferably continues to periodically transmit the current position information when the current position is within a predetermined range including the first destination. Thereby, the portable device 30 can receive the current position information of the vehicle immediately before the user stops the engine of the vehicle. Note that the position transmitting unit 66 does not have to periodically transmit the current position information. For example, the position transmission unit 66 may change the interval at which the current position information is transmitted according to the distance between the current position of the vehicle and the first destination. For example, when the vehicle is close to the destination, the position transmission unit 66 can reduce the interval at which the current position information is transmitted.

  In addition, as in step S42 in FIG. 6, it is preferable that the destination transmission unit 64 transmits information regarding the first destination to the portable device when the first destination and the second destination are different. Thereby, as in steps S102 and S104 of FIG. 13, when the user guidance unit 82 determines that the information on the current position is not valid, the user guidance unit 82 guides the user to the first destination based on the information on the first destination. be able to. Therefore, even when the portable device 30 cannot acquire the current position information, the user can be guided to the first destination considered to be close to the current position of the vehicle.

  The second embodiment is another example in which the position transmitting unit 66 transmits the current position information. FIG. 14 is an example showing the operation of the in-vehicle device 10. Compared to FIG. 12, in the case of Yes in step S <b> 82, the position transmission unit 66 determines whether the vehicle has moved a predetermined distance or more (step S <b> 86). For example, it is determined whether the vehicle has moved a predetermined distance or more from the current position of the vehicle when the position transmitting unit 66 transmitted the current position information last time. In the case of Yes, the position transmission means 66 transmits the current position information to the portable device 30 (step S88). Thereafter, the process ends and returns to step S80. If No in step S86, the process ends and returns to step S80. Other operations are the same as those in FIG.

  According to the second embodiment, the position transmission means 66 is a case where the current position of the vehicle is within a predetermined distance from the first destination, and from the position of the vehicle when the vehicle transmits information on the previous current position. If it has moved beyond a predetermined distance, the current position information is transmitted to the portable device. Thereby, compared with the case where the current position information is periodically transmitted as in the first embodiment, the number of times the current position information is transmitted can be reduced.

  The third embodiment is an example in which the portable device transmits usage information (usage flag) indicating whether the current position information is used to the in-vehicle device. FIG. 15 is a functional block diagram of the in-vehicle device, and FIG. 16 is a functional block diagram of the portable device. Referring to FIG. 15, the in-vehicle device 10 according to the third embodiment further includes usage information receiving means 68. The usage information receiving unit 68 receives a usage flag indicating whether or not the current position information has been used from the portable device 30. Other configurations are the same as those of the first embodiment shown in FIG. Referring to FIG. 16, the mobile device 30 of the third embodiment further includes a usage information setting unit 84 and a usage information transmission unit 86. The usage information setting unit 84 sets whether or not the user guidance unit 82 has used the current position information in the usage flag. For example, when the current position information is used, the use flag is set to high. The usage information transmitting unit 86 transmits a usage flag to the in-vehicle device 10. Other configurations are the same as those of the first embodiment shown in FIG.

  FIG. 17 is a flowchart showing the operation of the portable device. Referring to FIG. 17, corresponding to step S94 of FIG. 13 of the first embodiment, the usage information setting unit 84 sets the usage flag to high (step S110). The user is guided to the vehicle as in step S100 or S104 of FIG. 13 (step S112). The usage information transmission means 86 transmits a usage flag to the in-vehicle device 10 (step S114). Other configurations are the same as those of the first embodiment shown in FIG.

  FIG. 18 is a flowchart showing the operation of the in-vehicle device. Referring to FIG. 18, as compared with FIG. 12 of the first embodiment, after step S80, the usage information receiving unit 68 receives the usage flag (step S120). If Yes in step S82, the position transmission unit 66 determines whether the use flag is high (step S122). In No, the position transmission means 66 transmits present position information to the portable apparatus 30 (step S124). Thereafter, the process ends and returns to step S80. If YES in step S122, the process ends and returns to step S80. If No in step S82, the use flag is cleared to low (step S126). Other operations are the same as those in FIG.

  According to the third embodiment, as in steps S122 and S124 in FIG. 18, the position transmitting unit 66 provides usage information indicating that the usage flag is high, that is, the usage information receiving unit 88 has used the current location. If received, the current position information is not transmitted to the portable device 30 even if the current position of the vehicle is around the first destination. When the current position information is used, the current position information is not often used again. According to the third embodiment, the number of times the current position information is transmitted can be reduced. If there is a possibility that the current location information is used once again, it is preferable not to use the usage information as in the first embodiment.

  In the first to third embodiments, a mobile phone including the mobile interface (IF unit) 44 through which the mobile device 30 communicates with the mobile communication network has been described as an example. The mobile device 30 may not be a mobile phone.

  In the first to third embodiments, the position information is used as the information transmitted from the in-vehicle device 10 to the portable device 30, but in addition to this, there may be at least one of a facility name, an address, and a telephone number. By displaying these pieces of information on the display unit of the mobile device 30, the user can return to the parking position.

  In the first to third embodiments, the position transmitting unit 66 and the destination transmitting unit 64 of the in-vehicle device 10 directly transmit the position information, the first destination, and the second position information to the portable device 30, but the position transmitting unit 66 and the destination transmission means 64 transmit the position information, at least a part of the first destination and the second position information to the center server 50 via the mobile communication network 54, and the center server 50 transmits the portable device 30. May be transmitted via the mobile communication network 54. That is, the position transmission unit 66 and the destination transmission unit 64 may indirectly transmit the position information, the first destination, and the second position information to the portable device 30.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

FIG. 1 is a block diagram of the navigation system according to the first embodiment. FIG. 2 is a flowchart illustrating the operation of the navigation system according to the first embodiment. FIG. 3 is another flowchart illustrating the operation of the navigation system according to the first embodiment. FIG. 4 is a functional block diagram of the in-vehicle device. FIG. 5 is a functional block diagram of the portable device. FIG. 6 is a flowchart (part 1) illustrating the processing of the in-vehicle device. FIG. 7 is a flowchart (part 2) illustrating the processing of the in-vehicle device. FIG. 8 is a flowchart (part 3) illustrating the processing of the in-vehicle device. FIG. 9 is a flowchart (part 4) illustrating the process of the in-vehicle device. FIG. 10A to FIG. 10C are examples showing screens of the display unit. FIG. 11A to FIG. 11C are examples of information stored in the storage unit. FIG. 12 is a flowchart (No. 5) showing the process of the in-vehicle device. FIG. 13 is a flowchart showing processing of the portable device. FIG. 14 is a flowchart illustrating processing of the mobile device according to the second embodiment. FIG. 15 is a functional block diagram of the in-vehicle device according to the third embodiment. FIG. 16 is a functional block diagram of the mobile device according to the third embodiment. FIG. 17 is a flowchart illustrating processing of the mobile device according to the third embodiment. FIG. 18 is a flowchart illustrating processing of the in-vehicle device according to the third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 In-vehicle apparatus 30 Portable apparatus 60 Destination setting means 62 Vehicle guidance means 64 Destination transmission means 66 Location transmission means 68 Usage information reception means 70 Storage means 80 Reception means 82 User guidance means 84 Usage information setting means 86 Usage information transmission means 100 Navigation system

Claims (9)

Vehicle guidance means for guiding the vehicle to a first destination which is the destination of the vehicle;
Position transmitting means for transmitting information related to the current position of the vehicle to a portable device that guides the user to the second destination when the current position of the vehicle is within a predetermined range including the first destination;
A vehicle-mounted device comprising:   The position transmission means periodically transmits information related to the current position of the vehicle to the portable device when the current position of the vehicle is within a predetermined distance from the first destination. The vehicle-mounted device according to 1.   The position transmitting means is a case in which the current position of the vehicle is within a predetermined distance from the first destination, and the predetermined position is determined from the position of the vehicle when the vehicle has transmitted information on the current position last time. The in-vehicle device according to claim 1, wherein when the vehicle moves more than a distance, information on the current position of the vehicle is transmitted to the portable device. Comprising receiving means for receiving usage information indicating that the current position has been used from the portable device;
When the receiving means receives the usage information, the position transmitting means transmits information related to the current position to the portable device even if the current position of the vehicle is within a predetermined range including the first destination. The in-vehicle device according to any one of claims 1 to 3, wherein transmission is not performed.   The in-vehicle device according to claim 1, wherein the mobile device is a mobile phone. Vehicle guidance means for guiding the vehicle to a first destination which is the destination of the vehicle, and when the current position of the vehicle is within a predetermined range including the first destination, An in-vehicle device including a position transmission means for transmitting information on
The portable device including user guidance means for guiding a user from the current position to a second destination;
A navigation system comprising:   The navigation system according to claim 6, wherein the user guidance unit of the portable device guides the user to the current position when the position of the user is not at the current position. The in-vehicle device includes destination transmission means for transmitting information about the first destination to the portable device when the first destination and the second destination are different,
The navigation system according to claim 7, wherein the guidance unit of the portable device guides the user to the first destination when determining that the information on the current position is not valid. A navigation system control method including a portable device and an in-vehicle device,
The vehicle-mounted device guiding the vehicle to a first destination which is the destination of the vehicle;
When the current position of the vehicle is within a predetermined range including the first destination, transmitting information related to the current position of the vehicle to a portable device;
The portable device guiding the user from the current location to a second destination;
A control method for a navigation system comprising:

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