JP2005227912A - Supply method for navigation information, navigation device and provision system for navigation information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method allowing each user to provide optimum navigation information to a requiring opposite party with a simple configuration, without providing an information center or the like managing the information. <P>SOLUTION: This supply method for the navigation information includes: a retrieval step (S11) for retrieving a route on which a vehicle travels; a data collection step (S14) for starting a camera at a prescribed point based on map information, photographing an image in front of a mobile body, and storing image data in a storage device when the mobile body travels on the route retrieved in the retrieval step (S12); and information transmission steps (S21-23) for reading the image data from the storage device, and transmitting them to an external mobile terminal device when receiving a prescribed request signal. Thereby, a facility such as an information center is not required, the image data of the necessary point are collected by user's intention, and the suitable image data can be supplied to the opposite party requiring the information. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a navigation information supply method and a navigation apparatus used therefor. More specifically, the present invention relates to a navigation information supply method and apparatus for transmitting acquired image information to a mobile terminal device such as an external mobile phone so that it can be utilized.

  In recent years, navigation devices that transmit and receive information using a communication device such as a mobile phone have been proposed. For example, various latest information can be acquired by communicating with an external information center, and the convenience of the user using the navigation device is improved. Patent Document 1 proposes an information system that uses such an information center more effectively.

  In the system disclosed in Patent Document 1, an imaging camera, a display device that displays an image, and a car navigation device that detects position information are installed on a moving body such as a vehicle. In addition, on the information center side, at least one database is installed, and data obtained by adding position information obtained from the car navigation device to an image captured by an imaging camera on the mobile object side is transmitted via radio and a general public line. And store it in the database. A user (user) sequentially reads out the real image information from the database and displays it on the display device as necessary. By adopting such an information system, it is possible to obtain and display actual photographed image information relating to an intersection useful for the user from the information center side without providing a large-capacity recording device on the moving body side.

Japanese Patent Laid-Open No. 11-160080

  However, the system disclosed in Patent Document 1 cannot obtain necessary data unless it is connected to an information center. In addition, since the information center must store and constantly update the actual image data at all intersections, the data management load is extremely large and a high management cost is required. Furthermore, data stored in the information center is collected with the cooperation of each user. When a specific user refuses to collect and transmit data, there also arises a problem that the information center data cannot be kept up-to-date.

  In addition, live-action image data such as intersections and three-dimensional intersections on urban roads and sightseeing roads are frequently used, but in the case of live-action image data related to intersections away from urban areas, the use frequency is expected to be low. The In the technique disclosed in Patent Document 1, a large amount of image data that is used infrequently is accumulated in the information center.

  However, if it is difficult to understand a user's journey to the home (distance) after entering the branch road from the main road, it would be convenient if a live-action image such as an intersection that could easily be judged could be displayed on the navigation device of the visitor. It is. Therefore, there are many cases where even real-use image data with low usage frequency is useful image data for a specific user. Furthermore, when there is a visitor in a vehicle that does not have a navigation device installed in such a user's home, the information system disclosed in Patent Document 1 cannot be used in the first place.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and provide a navigation information optimal for each user in a simple configuration without providing an information center for managing navigation information. Is to propose.

  The object is to search for a route on which the vehicle travels, and when the mobile body travels on the route searched in the search step, the camera is activated at a predetermined point based on map information to move forward of the mobile body. A data collection step of taking an image of the image and storing the image data in a storage device, and information transmission for reading the image data from the storage device and transmitting it to an external mobile terminal device when a predetermined request signal is received And a navigation information supply method including steps.

  According to the present invention, when the vehicle travels on the searched route, an image of a predetermined point is taken by the camera. The image data collected in this manner is transmitted to an external mobile terminal device when a predetermined request signal is received. Therefore, as in the past, without the need for equipment such as an information center, the user is willing to pay for the image data at the required location and supply appropriate navigation information (image data) to the person who needs the information. it can.

  More preferably, at least one of position information and voice guidance information regarding the predetermined point is added to the image data transmitted to the mobile terminal device. If such information is added, it becomes easier for the other party receiving the image data to make a determination at a predetermined point. In addition, the predetermined point can be set based on attention information added to a branch point, a three-dimensional intersection, or a point that is difficult to confirm, included in the map information. Examples of locations that are difficult to confirm include roads that turn 120 degrees at an acute angle.

  The above object is also a navigation device that can be connected to a camera that captures an image in front of a moving object and a communication device that transmits image data captured by the camera, and the moving object travels on the searched route. When the camera is activated at a predetermined point determined on the basis of map information, an image in front of the moving body is captured and image data is stored in the storage means, and a predetermined request signal is received It can also be achieved by a navigation device provided with transmission control means for reading out the image data from the storage means and transmitting it to an external mobile terminal device via the communication device.

  The above object is also provided in a navigation device mounted on a mobile body, a camera connected to the navigation device and capturing an image in front of the mobile body, a storage device storing an image captured by the camera, and the navigation device. A navigation information providing system including a connected communication device and a mobile terminal device having an image display function and capable of communicating with the communication device, wherein when the mobile body travels on the searched route, the navigation device The camera is activated at a predetermined point based on map information, an image in front of the moving body is taken, image data is stored in the storage device, and the image data is read from the storage device when a predetermined request signal is received. This can also be achieved by a system for providing navigation information to be transmitted to the mobile terminal device via the communication device. .

  According to the present invention, image data of a predetermined point is collected when the user travels on the search route, and is transmitted to an external portable terminal device via a communication device when necessary. It is possible to provide optimal navigation information to the other party.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments according to the invention will be described with reference to the drawings. Here, a navigation information providing system configured using the navigation apparatus 1 will be described as an embodiment. FIG. 1 is a diagram schematically showing a hardware configuration included in the navigation information providing system. In FIG. 1, in a vehicle CR as a moving body, a navigation device 1, a user-side mobile phone 5 as a communication device connected to the navigation device 1, and a camera 4 connected to the navigation device 1. Has been deployed.

  The navigation device 1 includes a device body 3 and a display device 2. The apparatus main body 3 and the display apparatus 2 are electrically connected via a wiring 7-1. The camera 4 is installed to take an image in front of the vehicle (actual image). When a camera is previously attached to the vehicle CR for collision prevention or surrounding monitoring, this can be used. The camera 4 is electrically connected to the apparatus body 3 via the wiring 7-2. Further, the cellular phone 5 is connected to the apparatus main body 3 via the wiring 7-3 while being placed on the telephone holder 6. Further, the present system includes a mobile phone 9 as a mobile terminal device outside the vehicle that communicates with the mobile phone 5 inside the vehicle. In FIG. 1, the mobile phone 9 outside the vehicle CR is shown in a circle.

  The navigation information providing system exemplified here, when the vehicle CR travels on the route searched by the navigation device 1, an intersection existing on the travel route, a three-dimensional intersection, a predetermined point such as a corner that is difficult to confirm (hereinafter referred to as a corner) The image data is collected by shooting with the camera 4 at a predetermined point). This image data is transmitted from the mobile phone 5 to the mobile phone 9 of the other party outside the vehicle using a mail transmission function or the like. Thereby, the other party can confirm the image of the predetermined point on the display screen of the mobile phone 9. Therefore, when this system is used, the other party can arrive at the destination without hesitation at an intersection or the like where the determination of the traveling direction is easy to make an error. When the other party is driving a vehicle that does not include a navigation device, the mobile phone 9 can be used as a pseudo navigation device to arrive at the destination.

  In FIG. 1, the case where the mobile telephone 5 is utilized as a communication apparatus by the side of the navigation apparatus 1 is illustrated. However, the present invention is not limited to this configuration, and a configuration in which a communication device is built in the navigation device 1 may be adopted. Moreover, although the example which provided the camera 4 in vehicle CR is shown in FIG. 1, it is not restricted to such a form. When the camera-equipped mobile phone 5 is employed as the communication device, the built-in camera can be employed as a camera for frontward shooting. Therefore, in this case, it is not necessary to newly install the dedicated camera 4 in the vehicle CR in order to execute the present system.

  Furthermore, although the mobile terminal device of the other party is the mobile phone 9 in FIG. 1, it may be a navigation device having a communication function. In this case, an image of a predetermined point can be displayed on the display device of the other party's navigation device. If the other party's mobile terminal device is a navigation device, the vehicle's position can be confirmed, so the destination can be reached more reliably. In the navigation information providing system shown in FIG. 1, image data of a predetermined point can be collected for each user and transmitted when a specific partner is required. Therefore, navigation information required by the other party can be provided without preparing an expensive infrastructure such as an information center.

  Hereinafter, each part structure shown in FIG. 1 is demonstrated in detail. FIG. 2 is a block diagram showing the configuration of the navigation device 1. The navigation device 1 has the same function as a general navigation device. That is, in the device main body 3 of the navigation device 1, a disk driver 11, a communication device connection unit 12, an operation unit 13, a vehicle speed sensor 14, a GPS receiver 15, a gyro sensor 16, a VICS sensor 17, a reverse sensor 18, and a navigation controller 20 are provided. The display apparatus 2 and the speaker 40 are connected to the apparatus main body 3.

  The disk driver 11 reads various map data necessary for map display, route search, and the like, and program data as necessary from a recording medium such as a CD-ROM, DVD, HDD. The communication device connection unit 12 corresponds to the telephone holder 6 shown in FIG. When the mobile phone 5 is set in the telephone holder 6, the navigation device 1 has a communication function. This enables communication with the mobile phone 9 outside the vehicle and the service center (the service center of the manufacturer or other organization) described above. In this way, the navigation device 1 itself may be configured to include a communication device without using a configuration in which a separate mobile phone (communication device) is connected. The operation unit 13 is a remote controller or input keys for a user to input various instructions to the navigation controller 20. In this example, the input key 131 is disposed on the side of the display device 2 (see FIG. 1).

  The vehicle speed sensor 14 outputs a vehicle speed corresponding to a pulse generated at every constant travel distance. The GPS receiver 15 receives a GPS signal sent from a GPS satellite and detects the current vehicle position and vehicle direction. More specifically, the GPS receiver 15 receives radio waves transmitted from a plurality of GPS satellites, performs three-dimensional positioning processing or two-dimensional positioning processing, calculates the absolute position and direction of the vehicle, and Is output together with the positioning time. The gyro sensor 16 is a sensor for detecting the vehicle direction. The vehicle direction is calculated by sampling a predetermined number of directions determined from the current vehicle position and the current vehicle position one sampling time ΔT before.

  The VICS sensor 17 receives traffic information provided from the VICS center via an optical beacon or a radio beacon. When the vehicle passes under a transmitter that transmits this optical beacon or radio wave beacon, current road condition information is transmitted from the transmitter to the vehicle. This information includes transmitter position data. The reverse sensor 18 outputs a signal indicating reverse travel of the vehicle. The vehicle speed sensor 14, the gyro sensor 16, and the reverse sensor 18 enable autonomous navigation, and complement navigation using GPS.

  Based on the image data output from the navigation controller 20, the display device 2 (see FIG. 1) displays a map image around the host vehicle together with a vehicle position mark, a departure point mark, a destination mark, etc. To display guidance routes such as guidance routes and detour routes. The speaker 40 outputs various messages to the user based on the audio data output from the navigation controller 20.

  The navigation controller 20 includes a buffer memory 21, interfaces (I / F) 22 to 28, a control unit 29, a map drawing unit 30, an operation screen / mark generation unit 31, a route storage unit 32, a route drawing unit 33, and a mark storage unit 34. , A mark drawing unit 35, an image composition unit 36, a memory 37, an audio output unit 38 and a connection ID storage unit 39.

  The buffer memory 21 temporarily stores map data and programs read from the recording medium by the disk driver 11. The interfaces 22 to 28 are connected to the communication device connection unit 12, the operation unit 13, the vehicle speed sensor 14, the GPS receiver 15, the gyro sensor 16, the VICS sensor 17, and the reverse sensor 18, and each interface with the control unit 29 side. Form.

  The control unit 29 is configured by a microcomputer, for example, and controls the navigation controller 20 as a whole. For example, the control unit 29 processes the GPS signal of the GPS receiver 15 and the output signals of the vehicle speed sensor 14, the gyro sensor 16, the reverse sensor 18, and the VICS sensor 17 for autonomous navigation to determine the vehicle position and vehicle direction. Various processes related to navigation, such as searching for a route from the departure point to the destination, under the search conditions set using the calculated map data or the read map data, are executed. Further, the control unit 29 has a timekeeping function, and can calculate the average vehicle speed of the own vehicle from the output signal from the vehicle speed sensor 14 as necessary. The control unit 29 performs processing for executing general navigation processing as described above, and also executes control for transmitting image data to the above-described mobile terminal device (mobile phone 5 in FIG. 1) outside the vehicle. To do. This point will be described later.

  The map drawing unit 30 performs a map image drawing process using the map data read to the buffer memory 21. The operation screen / mark generating unit 31 generates various menu screens (operation screens) and various marks such as a vehicle position mark and a cursor according to the operation status. The route storage unit 32 stores guidance route data searched by the control unit 29. Specifically, the route storage unit 32 is changed during the search for data on all nodes (coordinates of points displayed in longitude and latitude) from the starting point to the destination of the guidance route searched by the control unit 29. Memorize the guidance route data.

  The route drawing unit 33 reads the guidance route data (node sequence) from the route storage unit 32 and draws the guidance route with a color and line width different from those of other roads. The mark storage unit 34 relates to a predetermined shape icon (brand icon, category icon, etc.) given as information indicating the position of the target property on the map screen and a simple shape mark given instead of this icon. Data is stored in advance. The mark drawing unit 35 performs a drawing process on the data read from the mark storage unit 34 based on the control of the control unit 29. The image composition unit 36 synthesizes images output from the map drawing unit 30, the operation screen / mark generation unit 31, the route drawing unit 33, and the mark drawing unit 35, and outputs them to the display device 2.

  The audio output unit 38 outputs an audio signal to the speaker 40 based on the signal from the control unit 29. The connection ID storage unit 39 stores service center addresses, connection IDs, passwords, and the like of manufacturers and other organizations. The memory 37 includes a RAM that provides a work area for the control unit 29, a ROM that stores a program executed by the control unit 29, a nonvolatile memory such as an EEPROM that stores data to be backed up, and a flash memory. Yes. As described above, the navigation device 1 has general functions included in a navigation device such as a route search function for guiding a vehicle to a destination.

  Furthermore, in order to realize the navigation information system described with reference to FIG. 1, the navigation device 1 activates the camera 4 at a predetermined point determined based on map information when the vehicle CR travels on the searched route. The image collecting means for taking the image and storing the taken image data in the storage means, and reading the image data from the storage means when receiving a predetermined request signal, and the external mobile phone 9 via the mobile phone 5 Transmission control means for transmitting to the network. Such a novel configuration is realized by the existing units shown in FIG. The navigation device 1 includes a camera connection unit 41 for connecting the camera 4 (see FIG. 1), and is connected to the control unit 29 via an interface (I / F) 42. Therefore, the camera 4 is driven and controlled by the control unit 29.

  The image collection unit and the transmission control unit are realized by the control unit 29 executing a program stored in an HDD or the like. Further, the storage means is realized by a nonvolatile memory portion in the memory 37 in particular. The control unit 29 in the case of functioning as an image collecting unit activates the camera 4 at a predetermined point when the vehicle is traveling on the route searched for the route, and takes an image in front of the vehicle. Since the control unit 29 performs the control by the normal navigation operation as described above, it is possible to confirm the searched route and whether or not the vehicle is traveling on the route. Further, the control unit 29 sets a predetermined point to be photographed by the camera based on the map information. The map information includes caution information added to road intersections, three-dimensional intersections, and corners that are difficult to confirm. For example, in map information, intersections of minute corners or corners that turn 120 degrees to an acute angle are places that are difficult for the user to check, and therefore there is a single piece of attention information that alerts the user by display or voice guidance. Included as part. Therefore, the predetermined point can be set based on the attention information attached to the place (point) where the user is likely to make an error in the traveling direction. The attention information for setting the predetermined point as described above is included in the map data recorded on a recording medium such as a CD-ROM or HDD that is read by the disk driver 11. Therefore, the control unit 29 can automatically determine a predetermined point at which an image should be taken using the map data of the recording medium. Further, the control unit 29 stores image data of a predetermined point photographed by the camera 4 in the nonvolatile portion of the memory 37.

  Furthermore, the control unit 29 also functions as a transmission control unit. The control unit 29 in the case of functioning as a transmission control means receives a request signal from the user side by the input key 131 or the like, reads predetermined image data stored in the memory 37, and external mobile phone via the mobile phone 5. Send to phone 9. In addition, a predetermined signal input from the external mobile phone 9 via the mobile phone 5 may be included in the request signal. In this case, the control unit 29 transmits the image data stored in the memory 37 in response to a request from the mobile phone 9 outside the vehicle. The image data to be transmitted may include position information, voice guidance information, and the like regarding a predetermined point at which the image is taken. When the mobile phone 9 that receives data has a GPS function, it is possible to confirm the position accurately using the position information. In addition, since voice information such as “the left front corner is a bank” is obtained as voice information, the position can be easily confirmed.

  By the way, when the vehicle CR shown in FIG. 1 travels on the searched route, it is preferable that the control unit 29 performs the above operation after confirming with the user whether or not to collect image data of the image. For this purpose, for example, as shown in FIG. 3A, items such as “route search and image collection” may be newly provided on the menu screen separately from the normal “route search”. When the user selects “route search and image collection”, the above-described control unit 29 performs image collection after the route search is performed.

  Further, when the above-mentioned “route search and image collection” is selected, it is possible to display a screen for confirming the user with a predetermined point for camera shooting as shown in FIG. desirable. As described above, the control unit 29 can automatically set the predetermined point based on the map information. However, there are cases where a live-action image of a point that the user does not consider necessary is included. Therefore, as shown in FIG. 3B, items such as (1) automatic setting, (2) confirmation setting for each point, and (3) designation setting for point are provided, and image data based on the user's intention. You may make it collect. When the user selects (1), the control unit 29 sets predetermined points based on the map information and performs all photographing. When the user selects (2), the control unit 29 sets predetermined points based on the map information, and performs shooting after confirming the presence or absence of shooting by generating a confirmation sound or the like for each point. When the user selects (3), the user instructs a predetermined point on the search route using a remote controller or the like, and the control unit 29 performs shooting at the indicated point. If the user can select the photographing condition at a predetermined point in this way, the navigation device becomes more user-friendly.

  FIG. 4A is a diagram schematically illustrating an example of an image photographed by the camera 4. When the searched route DR turns left at the intersection SP, the intersection SP is set as a predetermined point and is photographed by the camera 4. Note that the image of the predetermined point may be a moving image that is captured from a short time before the vehicle enters the intersection, for example, and is preferably a still image from the viewpoint of reducing the load of transmission and reception. . In the case of a still image, it is desirable to take a plurality of images at different positions rather than a single image at one predetermined point. For example, a plurality of images are taken from a little before the intersection until the intersection is entered. Still image data (image data) to be transmitted may be a real image captured by the camera 4, but as shown in FIG. 4B, a processed image obtained by adding an arrow CA or the like indicating the traveling direction to the image, It is preferable to do. Furthermore, when the map image NA based on the position information provided in the navigation device 1 is further added, it becomes easier to confirm the vicinity of the point that is the subject of photographing.

  5 and 6 are diagrams showing two specific examples when the navigation information providing system configured using the navigation device 1 is used. First, FIG. 5 is a diagram showing a usage example of the system having the hardware configuration shown in FIG. Image data relating to a predetermined point is stored in the navigation device 1 in the vehicle CR. When the visitor HU visits the user's home for the first time, the user operates the navigation device 1 to transmit optimal image data to the mobile phone 9 of the visitor HU. Since the visitor HU can confirm the image of the predetermined point which requires information on the display of the mobile phone 9, it can surely find the user's home. If audio data or the like is loaded on the image data to be transmitted here, the visitor HU can more easily find the user's home. Whether the visitor HU shown here is walking or driving a vehicle, the display of the mobile phone 9 effectively performs the navigation function.

  It should be noted that the convenience is improved if the image data stored in the navigation device 1 can be transmitted even when the user leaves the vehicle CR. For this purpose, a configuration may be adopted in which a part of the image data stored in the navigation device can be downloaded to the memory of the user's mobile phone 5. In this way, image data can be transmitted directly from the user's mobile phone 5 to the mobile phone 9 of the visitor HU using the mail function or the like.

  FIG. 6 shows another usage example in which the present system is used when two vehicles CR-1 and CR-2 travel together. The preceding vehicle CR-1 is equipped with the navigation device 1 described with reference to FIGS. On the other hand, the subsequent vehicle CR-2 is assumed to be equipped with a normal navigation device having a communication function. While traveling on the searched route, the vehicle CR-1 side takes a picture of a predetermined point such as an intersection that is easily misjudged and stores it in the navigation device. When the succeeding vehicle CR-2 leaves the preceding vehicle CR-1 and reaches the point SP where it is difficult to determine the course, the image data illustrated in FIG. 4B from the navigation device of the vehicle CR-1 Is sent to the navigation device of the vehicle. In this way, since the subsequent vehicle CR-2 can use the navigation information acquired by the preceding vehicle CR-1, smooth tooling can be performed.

  As described above, when this navigation information providing system is used, it is possible to directly transmit navigation information (image data) collected by a user to a necessary partner without providing an information facility such as an information center.

  7 and 8 are flowcharts showing an example of an operation when the navigation device 1 provides navigation information. FIG. 7 is a flowchart showing an example of processing when collecting an image of a predetermined point, and FIG. 8 is a flowchart showing an example of processing when transmitting collected image data to a necessary partner. The process according to this flowchart is executed by the control unit 29. The flowchart shown here shows a case where the user selects (2) “Route search and image collection” shown in FIG.

  With reference to FIG. 7, the image collection by the navigation apparatus 1 is demonstrated. The control unit 29 confirms that “route search and image collection” is selected (S11). It should be noted that when a route search is performed by the navigation device 1, it is possible to always set to collect images. In this case, step S11 is omitted.

  The control unit 29 confirms whether the vehicle is traveling on the searched route (S12) and confirms whether the vehicle has reached a predetermined point (S13). When the control unit 29 confirms that the vehicle has reached a predetermined point, the camera 4 is activated to capture an image of the predetermined point that can be seen in front of the vehicle (S14). Here, so that the characteristics of the predetermined point can be confirmed by the image, the camera 4 starts shooting from a position before the vehicle reaches the predetermined point, for example, a position 30 m to 50 m before, and shooting is continuously performed to obtain a plurality of images. It is desirable to set the control unit 29 so that a still image can be obtained. In addition, a step of prompting the user to confirm photographing by character display or voice may be added before photographing a predetermined point (see FIGS. 3B and 3). In the case of shooting a moving image, for example, the control unit 29 may be set so that shooting is started from 50 m before the vehicle reaches a predetermined point and shooting is performed until the vehicle passes the point.

  The control unit 29 stores the image data of the predetermined point photographed by the camera in the memory 37 (S14). The control unit 29 collects the image data as described above until the vehicle reaches the destination of the searched route. When the vehicle reaches the destination, the camera photographing is completed, and the processing according to this flowchart ends (S15). , S16).

  The case of transmitting the image data stored in the memory 37 based on the flowchart shown in FIG. 7 will be described with reference to FIG. The processing by this flowchart is also executed by the control unit 29. When receiving a predetermined request signal for requesting the stored image data (S21), the control unit 29 reads the data from the memory 37 (S22). The request signal to the control unit 29 is input by a user who operates the operation unit 13 such as an input key 131 or a remote controller (not shown). The user performs this input operation when receiving a notification from a partner outside the vehicle that he / she wants image data using a mobile phone or the like. The request signal may be transmitted from the mobile phone 9 of the other party outside the vehicle. Upon receipt of the request signal, the control unit 29 transmits the image data read from the memory 37 to the other party's mobile phone 9 via the mobile phone 5 in the vehicle, and the processing according to this flowchart is terminated (S23).

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

It is the figure which showed typically the hardware constitutions included in the provision system of the navigation information of embodiment. It is the block diagram which showed the structure of the navigation apparatus. It is the figure shown in order to demonstrate preferable operation when collecting image data. It is the figure which showed the example of the image image | photographed with the camera typically. It is the figure which showed the usage example of the information supply system of the hardware constitutions shown in FIG. It is the figure which showed the other usage example using an information supply system about the case where two vehicles drive | work together. It is the flowchart which showed the example of a process when performing the image collection of a predetermined point. It is the flowchart which showed the example of a process when transmitting the collected image data to a required other party.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Display apparatus 3 Navigation apparatus main body 4 Camera 5 User's mobile phone 9 External mobile phone 29 Control part 37 Memory CR Vehicle

Claims (5)

A search step for searching a route along which the vehicle travels;
Data that activates a camera at a predetermined point based on map information to take an image ahead of the moving body and stores the image data in a storage device when the moving body travels on the route searched in the searching step A collection step;
A navigation information supply method comprising: an information transmission step of reading the image data from the storage device and transmitting the image data to an external mobile terminal device when a predetermined request signal is received. The navigation information supply method according to claim 1, wherein at least one of position information and voice guidance information about the predetermined point is added to the image data transmitted to the mobile terminal device. 2. The navigation information supply according to claim 1, wherein the predetermined point is set based on caution information added to a branch point, a three-dimensional intersection, or a point that is difficult to confirm in the map information. Method. A navigation device connectable to a camera that captures an image in front of a moving body and a communication device that transmits image data captured by the camera,
Image collection in which when the moving body travels on the searched route, the camera is activated at a predetermined point determined based on map information, an image ahead of the moving body is taken, and image data is stored in a storage means And navigation control means for reading the image data from the storage means and transmitting it to an external mobile terminal device via the communication device when a predetermined request signal is received. apparatus. A navigation device mounted on a moving object;
A camera connected to the navigation device for taking an image of the front of the moving body;
A storage device for storing images taken by the camera;
A communication device connected to the navigation device;
A navigation information providing system including a mobile terminal device having an image display function and capable of communicating with the communication device,
When the mobile body travels the searched route, the navigation device activates a camera at a predetermined point based on map information, captures an image in front of the mobile body, and stores image data in the storage device, A navigation information providing system, wherein when a predetermined request signal is received, the image data is read from the storage device and transmitted to the mobile terminal device via the communication device.

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