JP4469665B2 - Navigation device and its vehicle position display method - Google Patents

Description

  The present invention relates to a navigation device and its own vehicle position display method, and more particularly to a navigation device suitable for displaying a vehicle position mark indicating a vehicle position on a map on a display unit and its own vehicle position display method. .

  Conventionally, in a navigation device, when performing route guidance for guiding a vehicle to a destination, a vehicle position mark indicating the vehicle position on the map is displayed on the display unit along with map information such as roads and landmarks. Things were going on. Usually, the vehicle position mark is often an icon in the shape of an arrow.

  Conventionally, in navigation devices, it has been possible to display the estimated arrival time at the destination as a guide on the display unit, or to display the progress of the entire process.

JP 2000-258173 A JP 2002-181553 A JP 2004-45237 A

  However, according to the display contents of the conventional vehicle position mark, the progress of the vehicle relative to the initial arrival time calculated at the time of route setting, that is, whether the vehicle is behind or ahead of the original schedule, or as scheduled. There was a problem that it was not possible to immediately determine whether it was.

  For example, in the current navigation device, the estimated arrival time displayed on the display unit varies depending on the progress of the host vehicle, and thus an operator such as a driver is calculated at the time of route setting. If you didn't remember the scheduled arrival time, you couldn't grasp the progress of your vehicle.

Therefore, the present invention has been made in view of such a problem, and it is possible to immediately grasp the progress of the own vehicle by the display content of the own vehicle position mark.
It is an object of the present invention to provide a navigation device and a method for displaying the position of the own vehicle, which can perform a safe driving with a space and make it easy to make a subsequent drive plan.

In order to achieve the above-mentioned object, the navigation device according to the present invention is characterized in that the vehicle position mark indicating the vehicle position on the map can be displayed together with the map information on the display unit, and the estimated arrival time at the destination is displayed. In the navigation device that can be calculated, the current estimated arrival time calculated every time the vehicle travels a certain distance is an allowable value set from the estimated initial arrival time calculated when setting the route to the destination. A time earlier than the time obtained by subtracting the advance time (T _h ), and the current estimated arrival time is a time later than the time obtained by subtracting the allowable advance time (T _h ) from the initial estimated arrival time ; and, said the case of the original arrival time has been set allowable delay time (T _d) a time earlier than the time obtained by adding the, the current plan to arrive, said the initial estimated time of arrival In the case of a time later than the time obtained by adding volumes delay time (T _d), in that it is a table 示可 ability vehicle position marks having different display contents from one another.

  And according to such a structure, it becomes possible to change the display content of the own vehicle position mark in real time according to the progress state of the own vehicle with respect to the scheduled arrival time.

Furthermore, the navigation device according to the present invention is characterized in that it is possible to set a stop point before stopping at the destination and a required time at the stop point, and to add the required time at the stop point to add the initial arrival schedule. time and the lies in the fact that to calculate the current estimated time of arrival.

  According to such a configuration, it is possible to determine the progress of the host vehicle in consideration of the required time at the stop point, and to change the display content of the host vehicle position mark based on the determination result. It becomes possible.

In addition, the feature of the vehicle position display method of the navigation device according to the present invention is that the vehicle position display method of the navigation device displays the vehicle position mark indicating the vehicle position on the map together with the map information on the display unit of the navigation device. The current estimated arrival time calculated every time the vehicle travels a certain distance is an allowable advance time set from the estimated initial arrival time at the destination calculated at the time of setting the route to the destination ( A time earlier than the time obtained by subtracting T _h ), and the current estimated arrival time is a time later than a time obtained by subtracting the allowable advance time (T _h ) from the initial estimated arrival time , and in the case of the original arrival time set acceptable delay time (T _d) a time earlier than the time obtained by adding a, the current expected arrival time, the allowable to the originally scheduled arrival time In a case of extending the time (T _d) a time later than the time obtained by adding, in terms that indicate display the vehicle position mark different display content from each other.

  And according to such a method, it becomes possible to change the display content of the own vehicle position mark in real time according to the progress state of the own vehicle with respect to the originally scheduled arrival time.

In addition, the feature of the vehicle position display method of the navigation device according to the present invention is that the stop point that stops before arriving at the destination and the required time at the stop point are set, and the required time at the stop point is added to add the required time at the stop point. The initial estimated arrival time and the current estimated arrival time are calculated .

  Then, according to such a method, it is possible to determine the progress situation in consideration of the required time at the stop point, and it is possible to change the display content of the vehicle position mark based on the determination result. .

According to the navigation device of the present invention, the display content of the own vehicle position mark can be changed in real time according to the progress status of the own vehicle. Can be grasped, and eventually
It is possible to perform a safe driving with a lot of space and to make it easier to make a drive plan after that.

  Furthermore, according to the navigation device of the present invention, it is possible to determine the progress status in consideration of the required time at the stop point, and to change the display content of the vehicle position mark based on the determination result. As a result, the convenience can be further improved.

  Further, according to the own vehicle position display method of the navigation device according to the present invention, the display content of the own vehicle position mark can be changed in real time according to the progress of the own vehicle. This makes it possible to immediately grasp the progress of the own vehicle, and thus, it is possible to perform a safe driving with a space, and to make a subsequent drive plan easier.

  Further, according to the vehicle position display method of the navigation device according to the present invention, it is possible to determine the progress state in consideration of the required time at the stop-off point, and the display content of the vehicle position mark based on the determination result As a result, the convenience can be further improved.

  Embodiments of a navigation device according to the present invention will be described below with reference to FIGS.

  As shown in FIG. 1, the navigation apparatus 1 in this embodiment has a navigation controller 2, and this navigation controller 2 performs various controls for navigation for guiding the host vehicle to the destination. It has become.

  A disk reader 3 is connected to the navigation controller 2, and a disk 4 such as a DVD or a CD can be loaded in the disk reader 3.

  The disk reader 3 can read data from the disk 4 under the control of the navigation controller 2.

  The disk 4 stores a plurality of vehicle position mark data indicating the vehicle position along with the map data.

  In the present embodiment, three types of icons having different appearances shown in FIGS. 2 to 4 are used as display contents as data of a plurality of vehicle position marks (hereinafter referred to as “vehicle position mark data”). Data is stored.

  Here, the icon of FIG. 2 is an icon that is displayed when the progress of the host vehicle is ahead of schedule compared to the originally scheduled arrival time calculated when setting the route to the destination. . In addition, the icon of FIG. 3 is an icon that is displayed when the progress of the host vehicle is as planned as compared with the originally scheduled arrival time. Furthermore, the icon of FIG. 4 is an icon that is displayed when the progress status of the own vehicle is delayed from the schedule as compared with the originally scheduled arrival time.

  In addition, a remote control unit 5 is connected to the navigation controller 2. The remote control unit 5 has various operation keys such as a joystick for designating up / down / left / right directions, a numeric keypad, and an enter key for confirming various settings, and outputs an input signal corresponding to the operation content to the navigation controller 2. It is supposed to be.

  For example, by operating the remote control unit 5, it is possible to set a starting point and a destination.

  Further, a vehicle position detection unit 7 is connected to the navigation controller 2, and the vehicle position detection unit 7 is equipped with a GPS receiver, an orientation sensor, a distance sensor, and the like at a predetermined timing with the own vehicle position ( (Longitude, latitude) is detected, and the detection result is output as detection data.

  The navigation controller 2 is connected to a display unit 8 as a display device. The display unit 8 is configured to display a map image around the vehicle position or the vehicle based on the drawing data output from the navigation controller 2. Various images such as position marks are displayed.

  Furthermore, a voice output unit 25 such as a speaker is connected to the navigation controller 2, and the voice output unit 25 performs voice guidance based on the voice guidance data output from the navigation controller 2. Yes.

  Next, the configuration of the navigation controller 2 will be described in further detail.

  The navigation controller 2 has a map buffer 9 connected to the output side of the disk reader 3. The map buffer 9 includes map data and vehicle position mark data read from the disk 4 by the disk reader 3. Is temporarily stored.

  A map drawing unit 10 and an operation screen generating unit 12 are connected to the output side of the map buffer 9.

  The map drawing unit 10 creates map drawing data for displaying a map image based on the map data stored in the map buffer 9. In addition, the map drawing unit 10 generates vehicle position mark drawing data for displaying the vehicle position mark based on the vehicle position mark data stored in the map buffer 9.

  On the other hand, the operation screen generation unit 12 generates drawing data for displaying an operation screen necessary for the user to perform various operation instructions.

  A VRAM 13 is connected to the output side of the map drawing unit 10, and map drawing data and vehicle position mark drawing data output from the map drawing unit 10 are temporarily stored in the VRAM 13. ing.

  The navigation controller 2 also has an input processing unit 14 connected to the output side of the remote control unit 5, and the input processing unit 14 performs operations corresponding to various operation instructions performed using the remote control unit 5. A command to be executed is output to each part of the navigation controller 2.

  When the display unit 8 is a touch panel system, the start point and the destination can be set by operating the touch panel, and an input signal corresponding to the operation content of the touch panel is input to the input processing unit 14. It will be.

  Furthermore, the navigation controller 2 has a vehicle position calculation unit 16 connected to the output side of the vehicle position detection unit 7. The vehicle position calculation unit 16 calculates the current position and direction of the vehicle based on the detection data output from the vehicle position detection unit 7, and when the calculated current position of the vehicle is not on the road of the map data. Then, a map matching process for correcting this is performed.

  A route calculation unit 19 is connected to the output side of the map buffer 9, the input processing unit 14, and the vehicle position calculation unit 16. The route search for the guidance route to the destination is performed by calculating the travel route to be connected under the conditions. As a result, the route to the destination is set.

  Further, the route calculation unit 19 calculates an initial estimated arrival time at the destination when setting a route, and outputs the result as data.

  Further, each time the host vehicle travels a certain distance, the route calculation unit 19 calculates a current estimated arrival time corresponding to the current progress state, and outputs the result as data each time. The fixed distance described above may be set in advance as a fixed value, or may be set to be changeable by the operator.

  A map read control unit 17 is connected to the output side of the input processing unit 14, the vehicle position calculation unit 16, and the route calculation unit 19. The map read control unit 17 is a vehicle calculated by the vehicle position calculation unit 16. The map data read request is output to the disk reader 3 in accordance with the current position of the data, the request from the input processing unit 14, and the like.

  In the present embodiment, the map readout control unit 17 inputs the current estimated arrival time data output by the route calculation unit 19 and, based on the input estimated arrival time, displays the current progress of the vehicle. It comes to judge.

  Further, the map reading control unit 17 inputs the data of the estimated arrival time output by the route calculation unit 19 and the own vehicle position mark corresponding to the current progress of the own vehicle with respect to the input estimated arrival time. A control signal for selecting is output to the disk reader 3.

  Then, the disk reader 3 reads the vehicle position mark data from the disk 4 in accordance with the control signal output from the map read controller 17.

  Thereby, the display content of the own vehicle position mark can be changed in real time according to the progress of the own vehicle with respect to the originally scheduled arrival time.

  Furthermore, in this embodiment, the operator can set a time range that is considered to be the progress status as planned with respect to the originally scheduled arrival time by operating the touch panel of the remote control unit 5 or the display unit 8. It can be done.

  The map reading control unit 17 switches the selection of the vehicle position mark when the traveling state of the vehicle deviates from the time range.

  Thereby, the display content of the own vehicle position mark can be changed according to the progress of the own vehicle by simple means.

Further, in this embodiment, by operating the touch panel of the remote control unit 5 or the display unit 8, by setting the allowable delay time T _d for admissibility advance time T _h and originally expected arrival time for the originally expected arrival time, said time The range can be set easily.

More specifically, the current estimated time of arrival is, in the case of a time earlier than the time obtained by subtracting the allowable advance time T _h from the original scheduled arrival time, map reading control section 17, the progress of the vehicle is higher than expected It has come to judge that it is also progressing. In this case, the map reading control unit 17 outputs a control signal for reading the icon data shown in FIG.

In addition, the current estimated time of arrival is a slower time than the time obtained by subtracting the allowable advance time T _h from the original scheduled arrival time, and, at an earlier time than the time obtained by adding the allowable delay time T _d to the initial estimated time of arrival In some cases, the map reading control unit 17 determines that the progress of the host vehicle is as planned. In this case, the map reading control unit 17 outputs a control signal for reading the icon data shown in FIG. 3 to the disk reading device 3.

Furthermore, when the current estimated arrival time is later than the time obtained by adding the allowable delay time T _d to the initial estimated arrival time, the map reading control unit 17 delays the progress of the host vehicle from the schedule. It comes to judge. In this case, the map reading control unit 17 outputs a control signal for reading the icon data shown in FIG. 4 to the disk reading device 3.

  Furthermore, in this embodiment, the operator can set a stop point to stop before arriving at the destination and a required time at the stop point by operating the touch panel of the remote control unit 5 or the display unit 8. It can be done.

  Then, the route calculation unit 19 adds the required time to calculate the initial estimated arrival time and the current estimated arrival time.

  Thereby, the map read-out control part 17 can determine the advancing condition of the own vehicle also taking into consideration the required time at the stop point.

  A route data creation processing unit 21 is further connected to the output side of the route calculation unit 19, and the route data creation processing unit 21 creates route data corresponding to the route set by the route calculation unit 19. It is designed to output.

  A route memory 20 is connected to the output side of the route data creation processing unit 21, and the route memory 20 stores the route data created by the route data creation processing unit 21.

  A route display processing unit 22 is connected to the output side of the route memory 20, and the route display processing unit 22 draws data for displaying the route data stored in the route memory 20 on the map in an overlapping manner. Are generated and output to the VRAM 13.

  In addition, a guide data creation processing unit 23 is connected to the route memory 20. The guidance data creation processing unit 23 creates drawing data for performing detailed guidance processing such as intersection guidance display at predetermined timing as image guidance data based on the route data stored in the route memory 20. And output to the VRAM 13. Further, the guidance data creation processing unit 23 creates voice guidance data for performing guidance processing and outputs the voice guidance data to the voice output unit 25.

  An image synthesizing unit 24 is connected to the output side of the VRAM 13 and the operation screen generating unit 12. The image synthesizing unit 24 draws the drawing data and the vehicle position mark drawing data read from the VRAM 13, and the operation screen generating unit 12. The image data is superimposed on the image data output from the image data, and the image data is output to the display unit 8.

  Next, the vehicle position display method of the navigation device according to the present invention will be described with reference to FIG.

  Note that the vehicle position display method of the navigation device in the present embodiment is performed using the navigation device 1 shown in FIG.

In the present embodiment, after starting the navigation process, first, in step 1 (ST1) of FIG. 5, the operator operates the touch panel of the remote control unit 5 or the display unit 8 to set various types for route setting. Enter the input information. Examples of the input information include a departure point, a destination, an allowable advance time T _h , an allowable delay time T _d , a stop point, and a required time at the stop point.

  Next, in step 2 (ST2), the route calculation unit 19 performs route setting according to the input information and calculates the initial estimated arrival time.

  Next, in step 3 (ST3), the route corresponding to the route set in step 2 (ST2) is displayed on the display unit 8 so as to be superimposed on the map, and the vehicle progresses as the vehicle position mark. The vehicle position mark (see FIG. 3) when the situation is as planned is displayed.

  When the vehicle travels while referring to the route displayed on the display unit 8, it is determined in step 4 (ST4) whether or not the vehicle has traveled a certain distance. The process proceeds to (ST5), and if it is not progressing, the same determination is repeated.

  In step 5 (ST5), the route calculation unit 19 calculates the current estimated arrival time.

In step 6 (ST6) and then, by the map reading control unit 17 determines the current arrival time, whether it is a time earlier than the time obtained by subtracting the allowable advance time T _h from the start estimated arrival time, early If it is time, the process proceeds to step 7 (ST7), and if not, the process proceeds to step 9 (ST9).

  In step 7 (ST7), the map reading control unit 17 determines that the progress of the host vehicle is ahead of schedule. Then, in the following step 8 (ST8), the disk reading device 3 reads out the vehicle position mark (see FIG. 2) when the traveling state of the vehicle is ahead of schedule from the disk 4, and the vehicle After the position mark is displayed on the display unit 8, the process returns to step 4 (ST4).

On the other hand, in step 9 (ST9), the map reading control unit 17 determines whether or not the current estimated arrival time is later than the time obtained by adding the allowable delay time _Td to the initial estimated arrival time, If it is later, the process proceeds to step 10 (ST10), and if not later, the process proceeds to step 12 (ST12).

  In step 10 (ST10), the map reading control unit 17 determines that the traveling state of the host vehicle is behind the schedule. Then, in the following step 11, the vehicle position mark (see FIG. 4) when the traveling state of the vehicle is delayed from the schedule is read from the disk 4 by the disk reading device 3, and the vehicle position mark Is displayed on the display unit 8, and then the process returns to step 4 (ST4).

  On the other hand, in step 12 (ST12), the map reading control unit 17 determines that the progress of the host vehicle is as planned. Then, in the following step 13, the disk reader 3 is caused to read out the vehicle position mark (see FIG. 3) from the disk 4 when the traveling state of the vehicle is as planned, and the vehicle position mark is displayed on the display unit. 8 is displayed, then the process returns to step 4 (ST4).

  Thus, in this embodiment, since the display content of the own vehicle position mark can be changed according to the progress status of the own vehicle, the operator can check the progress status of the own vehicle according to the display content of the own vehicle position mark. It is possible to grasp immediately.

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible as needed.

  For example, the present invention can be effectively applied to navigation devices other than the configuration shown in FIG.

  Furthermore, the vehicle position mark is not limited to the arrow-shaped icon, and it is needless to say that a mark having another appearance may be adopted. For example, when the progress of the vehicle is ahead of schedule, a shark icon may be displayed, and when the host vehicle is behind schedule, a turtle icon may be displayed.

The block diagram which shows embodiment of the navigation apparatus which concerns on this invention The figure which shows an example of the display content of the own vehicle position mark in embodiment of the navigation apparatus which concerns on this invention. The figure which shows another example different from FIG. 2 of the display content of the own vehicle position mark in embodiment of the navigation apparatus which concerns on this invention. The figure which shows another example different from FIG.2 and FIG.3 of the display content of the own vehicle position mark in embodiment of the navigation apparatus which concerns on this invention. The flowchart which shows embodiment of the own vehicle position display method of the navigation apparatus concerning this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Navigation controller 3 Disc reader 4 Disc 5 Remote control unit 8 Display part 17 Map reading control part 19 Route calculation part

Claims (4)

In the navigation device in which the vehicle position mark indicating the vehicle position on the map can be displayed on the display unit together with the map information, and the estimated arrival time at the destination can be calculated,
The current estimated arrival time calculated every time the host vehicle travels a certain distance subtracts the set allowable advance time (T _h ) from the estimated initial arrival time calculated when setting the route to the destination . If the time is earlier than the time,
The current estimated arrival time is a time later than the time obtained by subtracting the allowable advance time (T _h ) from the initial estimated arrival time, and the allowable delay time (T _d ) set to the initial estimated arrival time. If the time is earlier than the time of adding,
A case where the current estimated arrival time is later than a time obtained by adding the allowable delay time (T _d ) to the initial estimated arrival time ;
In the navigation apparatus characterized by being the table 示可 ability vehicle position marks having different display contents from one another. Said is possible to set the required time in the drop-in point and the stop point drop in before arriving at the destination, Rukoto to calculate the originally scheduled arrival time and the current estimated time of arrival by adding the required time in the drop point The navigation device according to claim 1 . In the vehicle position display method of the navigation device that displays the vehicle position mark indicating the vehicle position on the map together with the map information on the display unit of the navigation device,
Current estimated time of arrival, which is calculated each time the vehicle is traveling a certain distance, the allowable advance time has been set from the beginning of their estimated time of arrival to the destination, which is calculated at the time of route set to the destination (T _h ) Is earlier than the time minus
The current estimated arrival time is a time later than the time obtained by subtracting the allowable advance time (T _h ) from the initial estimated arrival time, and the allowable delay time (T _d ) set to the initial estimated arrival time. If the time is earlier than the time of adding,
A case where the current estimated arrival time is later than a time obtained by adding the allowable delay time (T _d ) to the initial estimated arrival time ;
In vehicle position display method of a navigation device according to claim Rukoto indicating display the vehicle position mark different display content from each other. A stop point to stop by before arrival at the destination and a required time at the stop point are set, and the required arrival time at the stop point is added to calculate the initial arrival time and the current expected arrival time. The method for displaying the position of the vehicle of the navigation device according to claim 3 .