JP2008039682A - Navigation system, navigation device, and portable telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide "a navigation system, a navigation device, and a portable telephone" that can acquire an optimum route in response to a road condition of the periphery of a destination from a portable telephone in the destination side and provide a fast and safe route guide. <P>SOLUTION: The navigation system in which the communication between the navigation device 10 and the portable telephone 40 in the destination side is performed, the potable telephone 40 receives a guiding route map from the navigation device 10; prepares route change information for instructing one or more via points for the guiding route map; notifies the route change information to the navigation device 10; and the navigation device 10 obtains an optimum route based on the route change information that is notified by the portable telephone 40. The navigation device 10 may transmit a guiding route map of the periphery of the destination to the portable telephone 40. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a navigation system, a navigation device, and a mobile phone that perform communication between a navigation device and a mobile phone.

  Conventional typical vehicle-mounted navigation devices include a control device such as a CPU that controls all processes related to navigation, a storage device such as a DVD (Digital Versatile Disk) -ROM or an IC memory card that stores map data in advance, It has a display device, a GPS (Global Positioning System) receiver, a detection device for detecting the current position and current direction of the vehicle, such as a gyroscope and a vehicle speed sensor. Then, the control device reads out map data including the current position of the vehicle from the storage device, displays a map image around the vehicle position on the display device screen based on the map data, and indicates the current position of the host vehicle. The vehicle position mark to be displayed is superimposed on the map image, the map image is scrolled according to the movement of the vehicle, the map image is fixed on the screen and the vehicle position mark is moved, and where the vehicle is currently located. You can see at a glance whether you are driving.

  In-vehicle navigation devices are usually equipped with a function (route guidance function) that guides the user so that the user can easily travel on the road without making a mistake. According to this route guidance function, the CPU calculates the optimal route from the departure point (typically the current position of the vehicle) to the destination using map data, such as a horizontal search method or a Dijkstra method. The route searched is stored as a guide route, and the route can be distinguished from other roads on the map image while traveling (for example, the color is changed or the line width is increased). When the vehicle approaches a predetermined distance to the intersection whose course should be changed on the guidance route, a guide map of the intersection on the map image (an enlarged view of the intersection, the direction of travel at the intersection) Display an arrow, a distance to the intersection, the name of the intersection, etc.) so that the user can know which road to drive and which direction to proceed at the intersection. It has become.

  However, even if the navigation route is followed, there may be a case where the destination cannot be reached at the scheduled time depending on traffic conditions.

For this reason, for example, as described in Patent Document 1, there is a system that monitors the passage of a predetermined position on the operation route of the pick-up bus and notifies the user when it approaches the pick-up location.
JP 2002-150494 A

  As described above, even if the vehicle travels according to the route instructed by the route guidance function of the in-vehicle navigation device, it cannot always reach the destination within the scheduled time.

  This may be caused by a situation that is not expected when searching for a guidance route, such as a road becoming inaccessible due to a sudden accident or fire.

  Further, as a result of searching for an optimal route with time priority, a narrow road may be selected. In this case, it is expected that safe traveling becomes difficult when the vehicle is a large vehicle or when there are many vehicles to be parked.

  It is difficult to search for a travel route in consideration of such safe travel using the route guidance function of the in-vehicle navigation device.

  Note that Patent Document 1 is a system that notifies that the vehicle has approached the destination, and does not allow the vehicle to arrive at the destination within the scheduled time.

  The present invention has been made in view of such problems of the prior art, and obtains optimum route information according to road conditions around a destination from a mobile phone on the destination side to quickly guide a safe route. It is an object of the present invention to provide a navigation system, a navigation device, and a mobile phone that can be used.

  In order to solve the above-described problems of the prior art, according to the basic form of the present invention, a navigation system configured to perform communication between a navigation device and a destination-side mobile phone, Receiving a guidance route map from the navigation device, creating route change information indicating one or more waypoints with respect to the guidance route map, notifying the route change information to the navigation device; The navigation system is characterized in that an optimum route is acquired based on the route change information notified from the mobile phone.

  Further, the navigation system is configured to perform communication between the navigation device and the destination-side mobile phone, wherein the mobile phone receives a guide route map from the navigation device, and The guide route map is changed based on one or more designated waypoints, the changed guide route map is notified to the navigation device, and the navigation device notifies the changed guide route from the mobile phone. A navigation system characterized by acquiring an optimum route based on a map is provided.

  In the navigation system according to these embodiments, the navigation device may transmit a guide route map around the destination to the mobile phone.

  According to the navigation system according to these embodiments, a map around the destination including the guidance route is transmitted to the mobile phone on the destination side, and the mobile phone changes to the optimum route according to the road conditions around the destination. Create route change information. The navigation device receives this route change information and changes the guide route. The route change information created on the mobile phone side is a passing intersection or a guidance route re-searched using this intersection as a transit point.

  This avoids routes that cannot be driven due to unexpected accidents that are not assumed when searching for guide routes with navigation devices, and routes that are difficult to drive due to narrow road widths, so that the latest road conditions around the destination can be obtained. It is possible to make an optimum guide route according to the corresponding, and contribute to the safety of traveling.

  According to another aspect of the present invention, a communication means for communicating with a mobile phone, and a route that is transmitted from the mobile phone after transmitting a guide route map to the mobile phone via the communication means. There is provided a navigation device comprising control means for deriving an optimum route from the guide route based on change information.

  Furthermore, according to the other form of this invention, the communication means which transmits / receives information with a navigation apparatus, the memory | storage means which stores map image data, an information input means, The said communication means, a memory | storage means, and an information input means Control means for controlling, the control means receives a guide route map from the navigation device, creates route change information for instructing one or more waypoints for the guide route map, A mobile phone is provided that notifies the navigation device of the route change information via the communication means.

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

(Configuration of navigation system)
FIG. 1 is a block diagram showing a configuration of a navigation system according to an embodiment of the present invention.

  The navigation system includes a navigation device 10 and a mobile phone 40, and the navigation device 10 and the mobile phone 40 can communicate with each other via a telephone network 30.

  The navigation device 10 includes a control unit 11 constituted by a microcomputer, a DVD-ROM 12 containing a map database, a buffer memory 13 for temporarily storing map data read from the DVD-ROM 12, and a buffer memory 13 for reading the map data. A map drawing unit 14 that draws a map image or the like based on the map data that is output, a display unit 15 that displays a map image or the like, a GPS receiver 16 that receives a GPS signal, and a gyro that detects the rotation angle of the vehicle And a self-contained navigation sensor 17 configured by a travel distance sensor that detects the travel distance of the vehicle, a guide route storage unit 18, a communication control unit 19 that controls communication with an external device, a RAM that stores route change data, and the like And a destination route creating unit 2 for creating a guide route map around the destination. When it is constituted by an operation unit 22 that the operation button for operating the navigation apparatus is provided. The DVD-ROM 12 may be a storage medium such as an HDD (Hard Disk Drive) or a semiconductor memory.

  As an external device connected to the communication control unit 19, there is a mobile phone 25, for example. The communication control unit 19 controls the cellular phone 25 and transmits / receives data to / from the outside via the telephone network 30.

  The control unit 11 detects the current position of the vehicle based on the outputs of the GPS receiver 16 and the self-contained navigation sensor 17, reads map data around the current position of the vehicle from the DVD-ROM 12 to the buffer memory 13, and sets the destination. Then, the current position of the vehicle is used as the departure point, a guidance route from the departure point to the destination is searched, and the searched guidance route is stored in the guidance route storage unit 18.

  As a destination setting method, for example, there are various methods such as a method of directly inputting latitude / longitude and a method of specifying from a facility name recorded in a map database or a guide point registered by a user. In addition, a known method such as a horizontal search method or a Dijkstra method is used for searching for a guidance route.

  On the other hand, the cellular phone 40 includes a control unit 41 configured by a microcomputer, a display unit 45 configured by a liquid crystal display device, an operation unit 43 configured by various switches for operating the cellular phone, The storage unit 44 stores map image data including guide route information, and a transmission / reception unit 42 that transmits / receives data to / from the outside via the telephone network 30.

  The control unit 41 is a main body that controls the mobile phone, and controls display of various types of information on the display unit 45 based on information from the operation unit 43. Further, in response to an instruction from the operation unit 43, control is performed to transmit the route change information stored in the storage unit 44 and the map image data of the changed guide route from the transmission unit 42.

  Hereinafter, the operation of the navigation system of the present embodiment will be described.

  FIG. 2 is a flowchart showing optimum route acquisition processing in the navigation system of this embodiment. In this process, it is assumed that a guide route to the destination has already been searched.

  First, in step S11, the searched guidance route is displayed on the screen for route guidance.

  In the next step S12, it is determined whether or not the vehicle has entered a range where a change in the guide route can be requested. If it is determined that the change can be requested, the process proceeds to step S13. If not, the process returns to step S11 to continue route guidance. The guide route change request may be made at any time while the vehicle is traveling, but in that case, the mobile phone is frequently requested to change and is complicated. Therefore, a change request can be made when the vehicle enters a predetermined range from the destination.

  Here, the range in which the change can be requested is, for example, a case where the vehicle position enters the administrative area of the destination or a range within a predetermined distance to the destination. The user may specify the range without limiting the range.

  Whether or not the vehicle position is within a predetermined range is determined based on the current position of the vehicle detected from the output of the GPS receiver 16 and the map data stored in the memory unit 20.

  In step S13, it is determined whether or not a guide route change request has been made. When there is a guide route change request, the process proceeds to step S14. When there is no guide route change request, the process returns to step S11 to continue the optimum route acquisition process.

  The request for changing the guide route is determined by, for example, whether or not a change request button (not shown) prepared on the operation unit 22 of the navigation device 10 has been selected.

  In the next step S14, the destination surrounding route creation unit 21 creates a guide route map around the destination. In the present embodiment, the guide route map is transmitted to the mobile phone 40 on the destination side, and the route change information is received from the mobile phone 40. For this reason, even if a wide range of map images is transmitted to the mobile phone 40, the guidance route and the like are reduced and displayed, making it difficult to see. Therefore, a map image and a guidance route around the destination are created.

  For example, the range of the map image may be an administrative area including the destination, or may be a range of a predetermined distance from the destination.

  The destination peripheral route creation unit 21 refers to the guide route stored in the guide route storage unit 18 and extracts a map within a predetermined distance from the destination including information on the guide route.

  Since this guide route map is sufficient if the destination and route are known, unnecessary image data, for example, image data for displaying facilities may be deleted. As a result, the amount of information can be reduced, the burden on transmission / reception with the mobile phone 40 can be reduced, and the communication speed can be increased.

  FIG. 3A is a diagram illustrating an example of a map image of a guidance route around a destination. In the example of FIG. 3A, a guide route 53 from the vehicle position to the destination 52 is displayed on the map image 51 displayed on the display screen 50 together with the vehicle position mark CM indicating the current position of the vehicle. ing. The guide route 53 is preferably displayed in a display mode different from other roads (for example, the line width is increased or the color is displayed in a conspicuous color) so that the user can easily identify the route.

  FIG. 3A shows an example in which the vehicle position is displayed on the map image 51, but the vehicle position is not displayed when the vehicle is not in the range around the destination. . Further, when the vehicle has not reached the vicinity of the destination, two screens of a map image including the traveling position of the own vehicle and a map image around the destination may be displayed.

  In the next step S15, the guide route map created in step S14 is transmitted to the mobile phone 40 on the destination side. After the guide route map is transmitted to the mobile phone 40, the mobile phone 40 performs a guide route change process. Details of this processing will be described later.

  In the next step S <b> 16, data is received from the mobile phone 40. This data includes change information when the guide route change process is performed on the mobile phone 40 side.

  In the next step S17, it is determined whether or not the guide route has been changed. When it is determined that there is a change, the process proceeds to step S18, and when it is determined that there is no change, the process returns to step S11 and the present optimum route acquisition process is continued.

  Whether or not the guide route has been changed is determined as follows. When the passing intersection is designated for the map image data including the guidance route transmitted to the mobile phone 40, it is determined that the guidance route has been changed.

  For example, as shown in FIG. 3B, it is assumed that intersections 54a and 54b are designated in the map image data received from the mobile phone 40. Thus, when the map image data transmitted to the mobile phone 40 and the map image data received from the mobile phone 40 are not the same, it is determined that the route change information is added. In this case, position coordinate data representing the intersections 54a and 54b is route change information (route points).

  On the other hand, when the same data as the map image data transmitted to the mobile phone 40 is received, it is determined that the route has not been changed, the process returns to step S11, and the optimum route acquisition process is continued.

  For example, a flag (change flag) indicating whether or not the route has been changed may be prepared, and it may be determined whether or not the guide route map has been changed based on the value of the change flag.

  In the next step S18, the guide route is changed based on the guide route change information received from the mobile phone 40. From the vehicle position to the destination, the guide route is searched again using the designated intersections (54a, 54b) as a waypoint.

  In the next step S19, the guide route derived in step S18 is displayed on the display screen of the navigation device. FIG. 3C is a diagram showing an example of a guidance route map as a result of re-searching around the destination. In the example of FIG. 3C, a guide route 55 from the vehicle position (CM) to the destination 52 is displayed on the map image 51. The guide route 55 reaches the destination 52 via the intersections (54a, 54b) shown in FIG.

  Further, the guide route 56 before the change is displayed in a display mode different from the guide route 55 after the change (for example, the route is indicated by a broken line).

  The driver can recognize that there is some inconvenience in the route 56 before the change, and by traveling according to this guide route, the driver can safely travel on an appropriate route according to the road conditions around the destination.

  In the next step S20, it is determined whether or not the destination has been reached. If the destination has been reached, the optimum route acquisition process ends. If the destination has not been reached, the process returns to step S11 to continue the optimum route acquisition process.

  Next, a process of creating route change information for the map image of the guidance route received by the mobile phone 40 will be described using the flowchart of FIG.

  First, in step S 21, a map image of a guidance route around the destination is received from the navigation device 10 via the telephone network 30 and the transmission / reception unit 42, and the map image data is stored in the storage unit 44.

  In the next step S22, the map image received in step S21 is displayed on the display screen of the display unit 45 of the mobile phone 40.

  FIG. 5A is a diagram illustrating an example of a map image of the guidance route received by the mobile phone 40. In the example of FIG. 5A, the map image 61 displayed on the display screen 60 of the mobile phone 40 includes the vehicle position mark CM indicating the current position of the vehicle and the vehicle position (CM) to the destination 62. The guide route 63 is displayed.

  The map image 61 displays the same guide route information as the map image shown in FIG. That is, position data such as intersections and destinations are represented by the same coordinate values.

  In the next step S23, it is determined whether or not the control unit 41 has received an instruction indicating that the guidance route needs to be changed. If it is determined that the guide route needs to be changed, the process proceeds to step S24. If it is determined that the guide route does not need to be changed, the process proceeds to step S26.

  Here, the guide route needs to be changed when a person who can accurately grasp the latest situation of the roads around the destination determines that it is safer and faster to arrive at the destination. is there.

  For example, there may be a case where there are places where it is difficult for many parked vehicles to travel on the guidance route 63 transmitted from the navigation device, or a sudden accident or fire occurs and the vehicle cannot pass.

  In step S24, a process for changing the guide route is performed. In the present embodiment, the guidance route is changed by designating a passing intersection in the displayed map image. FIG. 5B shows a display example when a passing intersection is designated for the map image 61 displayed on the display screen 60 of the mobile phone 40. For example, when the route R1 in FIG. 5B has a narrow road and it is difficult to travel, the intersections 64a and 64b are designated as the waypoints so as not to travel on the route R1.

  As a method of designating an intersection to pass, an intersection list may be displayed on a screen different from that of the map image 61, and an intersection may be designated by a selection button (not shown) of the operation unit 43, or the map image 61 may be designated. The cursor may be displayed above, and the cursor may be moved with a movement button (not shown) of the operation unit 43 to specify an intersection.

  The intersection designated in this way is desirably displayed in a display mode (for example, a large point or a conspicuous color point) that is easy for the user to identify.

  In the next step S25, the route change information at the intersection designated in step S24 is transmitted to the navigation device, and the processing on the mobile phone 40 side is terminated. As described above, the position coordinate data of the designated intersection is recorded in the storage unit 44 as the route change information.

  On the other hand, if it is determined that there is no need to change the route, the process proceeds to step S26 where the received map image data is transmitted to the navigation device 10 and the processing on the mobile phone 40 side is terminated. Further, information indicating that there is no change in the guide route may be transmitted by setting a change flag to 0, for example.

  As described above, in the navigation system according to this embodiment, when the vehicle reaches the destination within a predetermined distance range, a map around the destination including the guidance route is transmitted to the mobile phone on the destination side. Then, route change information for changing to an optimum route according to the road condition around the destination is created on the mobile phone side. The navigation device receives this route change information and changes the guide route.

  This avoids routes that cannot be driven due to unexpected accidents or routes that are difficult to drive due to unexpected accidents when searching for guidance routes with the navigation device, and responds to the latest road conditions around the destination. Therefore, it is possible to make an optimum guide route, which can contribute to the safety of traveling.

  In this embodiment, the route change request is transmitted to the mobile phone according to the user's instruction. However, the present invention is not limited to this, and the route change request may be periodically requested.

(Modification)
In the above-described embodiment, when the guide route change process is performed in the mobile phone 40, a passing intersection is designated and used as route change information. This route change information is transmitted to the navigation device 10, and the navigation device 10 searches for the guidance route again.

  In this modification, the guide route is changed in the mobile phone 40 that has received the map image data. In this case, since the map image data with the changed guide route is transmitted to the navigation device, there is no need to re-search the guide route on the navigation device 10 side.

  Hereinafter, the optimum route acquisition process according to the modification will be described.

  The process on the navigation device 10 side in the optimum route acquisition process of the present modification is the same except that the process of step S18 is not performed in the flowchart described in FIG.

  Here, a description will be given of a case where the guide route map shown in FIG. 6A is created in step S14 and the guide route map shown in FIG. 6B is received from the mobile phone 40 in step S16.

  FIG. 6A is a diagram illustrating an example of a map image of the guidance route around the destination, as in FIG. In the example of FIG. 6A, a guide route 73 from the vehicle position (CM) to the destination 72 is displayed on the map image 71 displayed on the display screen 70 together with the vehicle position mark CM.

  In step S17, it is determined whether or not the guide route has been changed. When it is determined that the guide route has been changed, the process proceeds to step S19. When it is determined that there has not been a change, the process returns to step S11 and the optimum route acquisition process is continued.

  Whether or not the guide route has been changed is determined as follows. When a different guide route is set for the map image data including the guide route transmitted to the mobile phone 40, it is determined that the guide route has been changed. In this modification, since the guide route is changed on the mobile phone 40 side, it may be determined that the guide route has been changed when map image data is transmitted from the mobile phone 40.

  On the other hand, when the guide route is not changed in the mobile phone 40, a signal indicating that the reception has been confirmed is transmitted without transmitting the map image data. In this case, if the data received from the mobile phone 40 is a reception confirmation signal, it is determined that there is no change in the guidance route.

  Further, for example, a flag (change flag) indicating whether or not the guide route has been changed may be prepared, and it may be determined whether or not the guide route has been changed based on the value of the change flag.

  FIG. 6B shows an example of a map image received from the mobile phone 40. In the example of FIG. 6B, a guide route 75 changed on the mobile phone 40 side is displayed on the map image 71.

  In the next step S19, the changed guide route is displayed on the display screen of the navigation device 10. In this display, only the changed new guidance route may be displayed, or the changed route is displayed in a different manner so that the difference between the route before the change and the route after the change can be understood. You may do it. For example, in the example of FIG. 6C, the route 76 before the change is displayed in a display mode different from the route 75 after the change (for example, the route is a broken line).

  In the next step S20, it is determined whether or not the own vehicle has arrived at the destination. If the destination has arrived, the optimum route acquisition process is terminated. If the destination has not been reached, the process returns to step S11 to continue the process.

  Next, processing on the mobile phone 40 side will be described with reference to the flowchart of FIG.

  First, in step S <b> 41, a map image around the destination is received from the navigation device 10 via the telephone network 30 and the transmission / reception unit 42, and the map image data is stored in the storage unit 44.

  In the next step S42, the map image received in step S41 is displayed on the screen of the display unit 45 of the mobile phone 40. FIG. 8A is a diagram showing an example of a map image of the guidance route received by the mobile phone 40. FIG.

  In the next step S43, it is determined whether or not the control unit 41 has received an instruction indicating that the guidance route needs to be changed. If it is determined that the guide route needs to be changed, the process proceeds to step S44. If it is determined that the guide route does not need to be changed, the process proceeds to step S48.

  The next steps S44 to S46 are processes for changing the guide route.

  In step S44, the user designates the starting point 84c, the destination 82, and the passing intersections 84a and 84b in the received map image, and the control unit 41 stores the position coordinates of these designated points in the storage unit 44 as change information. Record. The user may set these points by displaying the intersection name on a screen different from that of the map image 81, selecting the intersection name, displaying a cursor on the map image 81, and pressing the move button ( (Not shown) may be used to move the cursor and specify an intersection or the like. The position coordinates of the designated point are recorded as change information, and the display screen is displayed so that the designated position can be understood by changing the display mode. In the example of FIG. 8B, the starting point 84c is indicated by “◯”, and the passing intersections (84a, 84b) are indicated by “●”.

  In the next step S45, an intersection where a guide route from the designated departure point to the destination is designated is searched as a waypoint. This route search is performed using a known search method.

  In the next step S46, the result of searching for the route in step S45 is displayed on the display screen of the mobile phone 40. FIG. 8C is a diagram showing an example of a display screen displaying the changed guide route. A guide route 85 from the starting point 84c to the destination 82 via the intersections 84a and 84b is displayed in a different display manner.

  In the next step S47, the changed guide route information is transmitted to the navigation device.

  On the other hand, the received map image is transmitted to the navigation device 10 in step S48, which is shifted to when there is no route change instruction in step S43. If the route is not changed, a reception confirmation signal that has received the map image data from the navigation device 10 may be transmitted.

  As described above, in the navigation system according to this modification, when the vehicle reaches the destination within a predetermined distance range, a map around the destination including the guidance route is transmitted to the mobile phone on the destination side. However, the mobile phone side changes to an optimum route according to the road conditions around the destination. In the navigation device, there is no need to re-search the guidance route, and the changed guidance route is received and displayed.

  This avoids routes that cannot be driven due to unexpected accidents or routes that are difficult to drive due to unexpected accidents when searching for guide routes with the navigation device, and responds to the latest road conditions around the destination. Therefore, it is possible to make an optimum guide route, which can contribute to the safety of traveling.

It is a block diagram which shows the structure of the navigation system which concerns on one Embodiment of this invention. It is a flowchart which shows an example of the process which changes the guidance route in the navigation apparatus side of the system which concerns on FIG. FIGS. 3A to 3C are diagrams (part 1) illustrating an example of a screen display of a guidance route in the navigation device. 6 is a flowchart (part 1) illustrating an example of a process for changing a guide route on the mobile phone side of the system according to FIG. FIGS. 5A and 5B are views (part 1) illustrating an example of a screen display when the guide route is changed in the mobile phone. 6A to 6C are diagrams (part 2) illustrating an example of a screen display of a guidance route in the navigation device. 6 is a flowchart (part 2) illustrating an example of a process for changing a guide route on the mobile phone side of the system according to FIG. FIGS. 8A and 8B are diagrams (part 2) illustrating an example of a screen display when the guide route is changed in the mobile phone.

Explanation of symbols

10 ... navigation device,
11 ... Control unit (of navigation device),
20 ... memory part,
21 ... Destination route creation unit,
30 ... telephone network,
40 ... mobile phone,
41 ... Control unit (for mobile phone),
42 ... transmission / reception unit,
44 ... storage part,
50, 70 ... display screen,
60, 80 ... display screen of mobile phone,
64a, 64b, 84a, 84b ... passing intersection,
CM: Your vehicle position mark.

Claims (9)

A navigation system configured to perform communication between a navigation device and a mobile phone on the destination side,
The mobile phone receives a guidance route map from the navigation device, creates route change information indicating one or more waypoints with respect to the guidance route map, and notifies the navigation device of the route change information. ,
The navigation system according to claim 1, wherein the navigation device acquires an optimal route based on the route change information notified from the mobile phone. A navigation system configured to perform communication between a navigation device and a mobile phone on the destination side,
The mobile phone receives a guide route map from the navigation device, changes the guide route map based on one or more waypoints designated for the guide route map, and uses the changed guide route map Notify the navigation device,
The navigation system is characterized in that an optimum route is acquired based on the changed guide route map notified from the mobile phone.   The navigation system according to claim 1, wherein the navigation device transmits a guide route map around a destination to the mobile phone. A communication means for communicating with the mobile phone;
Control means for transmitting a guide route map to the mobile phone via the communication means and then deriving an optimum route from the guide route based on route change information notified from the mobile phone. A navigation device. Furthermore, information input means,
Having destination route creation means,
The control means, when instructed to request a route change via the information input means, causes the destination periphery route creation means to create a guide route map around the destination, and through the communication means. The navigation apparatus according to claim 4, wherein the guidance route map is transmitted to the mobile phone. Furthermore, it has a display means,
When the control means receives route change information indicating one or more waypoints indicated in the guide route map from the mobile phone, the control means re-searches the guide route based on the route change information and changes the guidance. The navigation device according to claim 4 or 5, wherein a route is displayed on a display screen of the display means. Furthermore, it has a display means,
6. The control unit according to claim 4 or 5, wherein when the guide route map whose route is changed is received from the mobile phone, the changed guide route map is displayed on a display screen of the display unit. The navigation device described. A communication means for transmitting / receiving information to / from the navigation device;
Storage means for storing map image data;
Information input means;
Control means for controlling the communication means, storage means and information input means,
The control means receives a guidance route map from the navigation device, creates route change information indicating one or more waypoints for the guidance route map, and sends the route change information via the communication means. A mobile phone that notifies the navigation device. A communication means for transmitting / receiving information to / from the navigation device;
Storage means for storing map image data;
Information input means;
Control means for controlling the communication means, storage means and information input means,
The control means receives a guide route map from the navigation device, changes the guide route map based on route change information indicating one or more waypoints designated for the guide route map, and the communication means A mobile phone characterized by notifying the navigation device of the changed guide route map via the mobile phone.

Images