JP6811509B2 - In-vehicle devices and navigation systems - Google Patents

Description

The present invention relates to a navigation system that provides route guidance.

Conventionally, a mobile device having a navigation function for setting a route to a destination and guiding the progress along the set route has been known (for example, Patent Document 1). Further, in such a mobile device, a technique for providing route guidance by displaying an arrow indicating the distance to the next intersection along the route and the passing direction (left turn, right turn, etc.) of the intersection. Is also known (for example, Patent Document 2).

Further, in an in-vehicle device mounted on an automobile, there is also known a technique of displaying information transferred from a mobile device connected to the in-vehicle device on a display of the in-vehicle device (for example, Patent Document 3).

JP-A-2009-2007 JP-A-2002-48576 Japanese Unexamined Patent Publication No. 2013-119263

Of the intersections on the route, the intersection that guides the passing direction is the guide point, the distance to the guide point is the guide distance, and the passage direction of the guide point is the guide direction. By receiving notification of the guidance distance and guidance direction from the navigation function and displaying the guidance distance and guidance direction on the display of the in-vehicle device arranged so that the driver can easily see it, the navigation function of the mobile device provides route guidance. It is conceivable to improve the visibility of the display.

However, when the mobile device notifies the guidance distance and the guidance direction independently, if the notified guidance distance and the guidance direction are displayed as they are, erroneous guidance may be performed.

That is, for example, the guide point to be passed next is the guide point A, the next guide point after the passage of the guide point A is B, the guide direction at the guide point A is a right turn, and the guide direction at the guide point B is a left turn. Shall be.

In addition, the mobile device notifies the in-vehicle device of 100 m as the guidance distance at a point 100 m before the guide point A, notifies the in-vehicle device of a right turn as the guidance direction at a point 90 m before the guide point A, and then notifies the in-vehicle device. After passing A, the in-vehicle device is notified of the guidance distance of 300 m at a point 300 m in front of the guide point B, and the in-vehicle device is notified of a left turn as the guidance direction at a point 250 m in front of the guide point B.

In this case, when the in-vehicle device displays the guidance distance and the guidance direction notified from the mobile device, 100m is displayed as the guidance distance from 100m in front of the guidance point A to 300m in front of the guidance point B, and the guidance point B is displayed. 300m is displayed as the guidance distance from the point 300m in front of the guide point, a right turn is displayed as the guidance direction from 90m in front of the guidance point A to the point 250m in front of the guidance point B, and the guidance direction is displayed from the point 250m in front of the guidance point B. The left turn will be displayed as.

Therefore, in this case, from passing through the guide point A to a point 250 m before the guide point B, a right turn, which is a wrong direction different from the left turn, which is the true passing direction of the guide point B, is the passing direction of the guide point B. Will be guided as.

Further, with respect to the above-mentioned guide point A and guide point B, the mobile device notifies the in-vehicle device of 100 m as a guide distance at a point 100 m before the guide point A, and as a guide direction at a point 90 m before the guide point. Notify the in-vehicle device of a right turn, and then, after passing the guidance point A, notify the in-vehicle device of a left turn as a guidance direction at a point 300 m before the guidance point B, and 250 m as a guidance distance at a point 250 m before the guidance point B. When the in-vehicle device is notified, the guide point is an erroneous distance of 100 m, which is different from the true distance to the guide point B, as the guide distance from passing through the guide point A to the point 250 m before the guide point B. It will be guided as the distance to B.

Therefore, an object of the present invention is to prevent erroneous guidance from being performed in an in-vehicle device that displays the distance to the guide point and the passing direction of the guide point, which are notified independently from the mobile device. To do.

In order to achieve the above object, the present invention passes to an in-vehicle device capable of connecting communication with the mobile device next to the points to be guided on the route to the destination set in the mobile device. The guidance information receiving unit, the display, and the guidance information receiving unit that receive the guidance distance indicating the distance to the guidance point, which is the point to be used, and the guidance direction indicating the passing direction of the guidance point from the mobile device are the mobile. The guide display control unit that displays the last received guide distance from the device and the last received guide direction on the display is provided, and the guide direction received from the mobile device in the guide display control unit is the mobile. When the passage direction is different from the guidance direction received last time from the device, the display of the guidance distance is suppressed until the next guidance distance is received from the mobile device.

According to such an in-vehicle device, it is detected that the guidance point has changed because the guidance direction received from the mobile device represents a passing direction different from the guidance direction previously received from the mobile device, and before that. Suppresses the display of the received guidance distance targeting the guidance point before the change. Therefore, it is possible to prevent incorrect guidance by displaying the guidance distance received from the mobile device as it is.

Here, in such an in-vehicle device, when the guidance distance received from the mobile device represents a distance larger than the guidance distance previously received from the mobile device in the guidance display control unit, the following The display of the guidance direction may be suppressed until the guidance direction is received from the mobile device.

Alternatively, in such an in-vehicle device, when the guidance distance received from the mobile device represents a distance larger than the guidance distance previously received from the mobile device in the guidance display control unit, the following The display of the guide direction may be suppressed until the guide direction is received from the mobile device or the distance represented by the guide distance received from the mobile device decreases continuously for a predetermined number of times.

Further, in order to achieve the above-mentioned problems, the present invention presents the following of the points to be guided on the route to the destination set in the in-vehicle device capable of connecting the communication with the mobile device. The guidance information receiving unit, the display, and the guidance information receiving unit that receive the guidance distance indicating the distance to the guidance point, which is the passing point, and the guidance direction indicating the passing direction of the guidance point from the mobile device. The guide display control unit that displays the last received guide distance and the last received guide direction from the mobile device on the display is provided, and the guide distance received from the mobile device in the guide display control unit is determined. When a distance larger than the previously received guide distance from the mobile device is represented, the display of the guide direction is suppressed until the next guide direction is received from the mobile device.

According to such an in-vehicle device, it is detected that the guidance point has changed because the guidance distance received from the mobile device represents a distance larger than the guidance distance received last time from the mobile device, and before that. Suppresses the display of the guidance direction that targets the received guidance point before the change. Therefore, it is possible to prevent incorrect guidance by displaying the guidance direction received from the mobile device as it is.

Here, in such an in-vehicle device, when the guidance display control unit does not suppress the display of the guidance direction, the guidance direction received from the mobile device is the same as the guidance direction previously received from the mobile device. When representing different passing directions, the display of the guide distance may be suppressed until the next guide distance is received from the mobile device.

By doing so, it is possible to prevent incorrect guidance by displaying the received guidance distance as it is, and even if the guidance direction received from the mobile device changes, the guidance after the change can be prevented. When the guidance distance of the target guidance point is received in advance, the display of the guidance distance can be prevented from being suppressed.

Further, in order to achieve the above-mentioned problems, the present invention presents the following of the points to be guided on the route to the destination set in the in-vehicle device capable of connecting the communication with the mobile device. The guidance information receiving unit, the display, and the guidance information receiving unit that receive the guidance distance indicating the distance to the guidance point, which is the passing point, and the guidance direction indicating the passing direction of the guidance point from the mobile device. The guide display control unit that displays the last received guide distance and the last received guide direction from the mobile device on the display is provided, and the guide distance received from the mobile device in the guide display control unit is determined. When a distance larger than the previously received guidance distance from the mobile device is represented, the guidance direction is then received from the mobile device, or the distance represented by the guidance distance received from the mobile device continues a predetermined number of times. The display of the guidance direction is suppressed until the number decreases.

According to such an in-vehicle device, it is detected that the guidance point has changed because the guidance distance received from the mobile device represents a distance larger than the guidance distance received last time from the mobile device, and before that. Suppresses the display of the guidance direction that targets the received guidance point before the change. Therefore, it is possible to prevent incorrect guidance by displaying the guidance direction received from the mobile device as it is.

Further, even if the mobile device does not transmit the guidance direction when the guidance direction does not change even if the guidance point changes, the guidance direction of the changed guidance point is determined and displayed on the display. You will be able to.

Here, in such an in-vehicle device, when the guidance display control unit does not suppress the display of the guidance direction, the guidance direction received from the mobile device is the same as the guidance direction previously received from the mobile device. When representing different passing directions, the display of the guide distance may be suppressed until the next guide distance is received from the mobile device.

By doing so, it is possible to prevent incorrect guidance by displaying the received guidance distance as it is, and even if the guidance direction received from the mobile device changes, the guidance after the change can be prevented. When the guidance distance of the target guidance point is received in advance, the display of the guidance distance can be prevented from being suppressed.

Here, the above-mentioned in-vehicle device is configured so as to suppress the display of the guide direction while the display of the guide distance is suppressed in the guide display control unit, or the guide display control unit may suppress the display of the guide direction. While the display of the guidance direction is suppressed, the display of the guidance distance may also be suppressed.

Here, the above-mentioned in-vehicle device may be configured such that the guide display control unit displays an arrow indicating the guide direction as the display of the guide direction.
Further, in the above-mentioned in-vehicle device, the display may be arranged in a meter cluster of an automobile.
The present invention also provides a navigation system including the above-mentioned in-vehicle device and mobile device. Here, the mobile device includes a route setting unit that sets a route to a destination, and a guidance distance that represents a distance to a guidance point that is the next passing point among the points to be guided on the route. It is provided with a guidance information transmission unit that transmits the guidance direction indicating the passing direction of the guidance point to the in-vehicle device via the communication.

As described above, according to the present invention, it is possible to prevent erroneous guidance from being performed in an in-vehicle device that displays the distance to the guidance point and the passing direction of the guidance point, which are notified independently from the mobile device. can do.

It is a block diagram which shows the structure of the in-vehicle device and the mobile device which concerns on embodiment of this invention. It is a figure which shows the arrangement of the display which concerns on embodiment of this invention. It is a figure which shows the guide data which concerns on embodiment of this invention. It is a flowchart which shows the guidance process which concerns on embodiment of this invention. It is a figure which shows the processing example of the guidance processing which concerns on embodiment of this invention. It is a figure which shows the processing example by another example of the guidance processing which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 shows the configuration of the navigation system according to the present embodiment.
As shown in the figure, the navigation system is composed of an in-vehicle device 1 mounted on an automobile and a mobile device 2 carried by a user and brought into the vehicle. Here, the mobile device 2 is, for example, a smartphone, a tablet device, or the like.

The in-vehicle device 1 includes a display 11, a control device 12, a memory 13, and a communication interface 14.
Here, the display 11 is arranged in the meter cluster of the automobile as shown in FIGS. 2a and 2b, and the control device 12 displays various displays such as the display shown in FIG. 2c on the display 11. It can be carried out.

Next, the mobile device 2 includes a mobile communication device 201, a voice input / output device 202, a display unit 203, an operation unit 204, a GPS receiver, a gyro sensor, a storage device, and the like that are connected to the mobile telephone network via wireless communication. The peripheral device 205, the navigation application 206, the mobile telephone application 207, the other application 208, the communication interface 209, and the control unit 210 for controlling each unit are provided.

Here, the mobile phone application 207 is an application that causes the mobile device 2 to function as a mobile phone terminal, and provides a mobile phone function using the voice input / output device 202, the display unit 203, and the operation unit 204.

Further, the navigation application 206 is an application that causes the mobile device 2 to function as a navigation terminal, calculates the current position using a GPS receiver and a gyro sensor provided as a peripheral device 205, provides map data, and provides a route search service. While using the navigation service server on the Internet that provides the above via the mobile communication device 201, a process of setting a route from the user to the set destination via the operation unit 204 is performed. In addition, the guidance distance, which is the distance to the guidance point, which is the guidance target intersection to be passed next among the guidance target intersections set on the route, and the guidance direction, which is the passage direction of the guidance point along the route, are set. The process of displaying on the display unit 203 together with the arrow to represent, the process of displaying the guidance screen for guiding the current position and the route on the map, and the like are performed on the display unit 203.

Here, in such a navigation system configuration, the mobile device 2 and the vehicle-mounted device 1 can be connected to each other by using the communication interface 14 of the vehicle-mounted device 1 and the communication interface 209 of the mobile device 2.

The communication interface 14 of the in-vehicle device 1 and the communication interface 209 of the mobile device 2 are interfaces that communicate with each other by communication of a predetermined communication standard such as USB, Wi-Fi, or Bluetooth (registered trademark).

Then, when the mobile device 2 is connected to the in-vehicle device 1, the navigation application 206 of the mobile device 2 sets the guidance distance, which is the distance to the guidance point described above, and the guidance direction, which is the passing direction of the guidance point. A process of notifying the in-vehicle device 1 is performed via the control unit 210 and the communication interface 209. Here, the guide distance and the guide direction are notified only when the guide distance and the guide direction change. Further, the guidance distance and the guidance direction are independently calculated at each timing in the navigation application 206, and are independently notified to the in-vehicle device 1 at each timing.

Hereinafter, the guidance process performed by the control device 12 of the in-vehicle device 1 in such a configuration will be described.
First, the guidance data used in the guidance processing will be described.
The guidance data is data stored in the memory 13, and as shown in FIG. 3, the guidance data includes a guidance direction table and a guidance distance table.
Then, in the guidance direction table, the guidance direction data in which the guidance direction last notified from the mobile device 2 is registered and the previous guidance direction data in which the guidance direction notified second from the last from the mobile device 2 is registered. And are registered.

Further, in the guidance distance table, the guidance distance data in which the last notified guidance distance from the mobile device 2 is registered and the previous guidance distance data in which the penultimately notified guidance distance from the mobile device 2 is registered. And the previous guide distance data before the guide distance notified third from the last from the mobile device 2 is registered.

Next, FIG. 4 shows a procedure of guidance processing performed by the control device 12 of the in-vehicle device 1.
Here, this guidance process is a process executed when the mobile device 2 is connected to the in-vehicle device 1.
As shown in the figure, when the control device 12 starts the guidance process, it first clears the guidance data, sets the distance undecided flag, and sets the direction undecided flag (step 402).
Next, monitoring of the occurrence of the reception of the guidance direction notification from the mobile device 2 (step 404) and the generation of the reception of the guidance distance notification from the mobile device 2 (step 406) is started.
Then, when the notification of the guidance direction is received from the mobile device 2 (step 404), the guidance direction table is updated (step 408). The guidance direction table is updated by registering the guidance direction registered in the guidance direction data of the guidance direction table at that time in the guidance direction data last time, and then registering the guidance direction for which the notification is received in the guidance direction data. Do.

Then, it is checked whether or not the direction undecided flag is set (step 410), and if it is not set, it is checked whether or not the guide direction data represents a guide direction different from the previous guide direction data (step 412).

Next, if the guidance direction data does not represent a guidance direction different from the previous guidance direction data (step 412), it is checked whether the distance undecided flag is set (step 414), and if it is not set, guidance is provided. The guide direction represented by the direction data and the guide distance represented by the guide distance data are displayed on the display 11 (step 416).

Then, the process returns to the monitoring of steps 404 and 406.
Here, as shown in FIG. 2c, the guide direction represented by the guide direction data and the guide distance represented by the guide distance data are displayed on the display 11 by displaying the arrow 31 representing the guide direction represented by the guide direction data and the arrow. This is performed by displaying the guide distance value 32 represented by the guide distance data under 31.

On the other hand, when it is determined in step 414 that the distance undecided flag is set, the display state of the display 11 is not displayed as the guide direction represented by the guide direction data and the guide distance represented by the guide distance data. After controlling to (step 420), the process returns to the monitoring of steps 404 and 406. The display state of the display 11 is controlled so that the guide direction represented by the guide direction data and the guide distance represented by the guide distance data are not displayed. The display state of the display 11 at that time is the guide direction and the guide distance. If the display is being displayed, the display is erased, and if the display state of the display 11 at that time is not displaying the guide direction and the guide distance, the display state is maintained. Do it by doing.

Next, in step 412, when it is determined that the guidance direction data represents a guidance direction different from the previous guidance direction data, the distance undecided flag is set (step 418), and the display state of the display 11 is guided. After controlling so that the guide direction represented by the direction data and the guide distance represented by the guide distance data are not displayed (step 420), the process returns to the monitoring of steps 404 and 406.

On the other hand, if it is determined in step 410 that the direction undecided flag is set, the direction undecided flag is cleared (step 422).
Then, it is checked whether or not the distance undecided flag is set (step 424), and if it is set, the display state of the display 11 is determined by the guide direction represented by the guide direction data and the guide distance represented by the guide distance data. (Step 420), and the process returns to the monitoring of steps 404 and 406.

On the other hand, if the distance undecided flag is not set (step 424), as shown in FIG. 2c, the guide direction represented by the guide direction data and the guide distance represented by the guide distance data are displayed on the display 11 (step 426), and the step Return to monitoring 404 and 406.

On the other hand, when the notification of the guidance distance from the mobile device 2 is received (step 406), the guidance distance table is updated (step 428). To update the guidance distance table, the guidance distance registered in the previous guidance distance data of the guidance distance table at that time is registered in the previous guidance distance data, and is registered in the guidance distance data of the guidance distance table at that time. This is performed by registering the guidance distance in the guidance distance data last time and then registering the guidance distance that received the notification in the guidance distance data.

Then, the distance undecided flag is cleared (step 430),
Further, it is examined whether or not the guide distance represented by the guide distance data is larger than the guide distance represented by the previous guide distance data (step 432). In step 432, when the guide distance is not registered in the previous guide distance data, it is determined that the guide distance represented by the guide distance data is not larger than the guide distance represented by the previous guide distance data.

Then, when the guide distance represented by the guide distance data is not larger than the guide distance represented by the previous guide distance data (step 432), it is checked whether the direction undecided flag is set (step 434), and if it is not set. As shown in FIG. 2c, the guide direction represented by the guide direction data and the guide distance represented by the guide distance data are displayed on the display 11 (step 436), and the process returns to the monitoring of steps 404 and 406.

On the other hand, when the direction undecided flag is set (step 434), it is checked whether or not the guide direction is registered in the guide direction data (step 438), and when it is not registered, the display state of the display 11 is displayed. Is controlled so that the guide direction represented by the guide direction data and the guide distance represented by the guide distance data are not displayed (step 446), and the process returns to the monitoring of steps 404 and 406.

On the other hand, when the guidance direction is registered in the guidance direction data (step 438), it is examined whether or not the guidance distance for receiving the notification has decreased twice in a row (step 440).
Here, in step 440, when the guidance distance represented by the previous guidance distance data is smaller than the guidance distance represented by the previous previous guidance distance data, and the guidance distance represented by the guidance distance data is smaller than the guidance distance represented by the previous guidance distance data. , It is determined that the guidance distance for receiving the notification has decreased twice in a row. In step 440, when the guide distance is not registered in the previous guide distance data or the previous previous guide distance data, it is determined that the guide distance for which the notification has been received has not decreased twice in a row.

Then, when the guidance distance for which the notification is received has decreased twice in a row (step 440), the direction undecided flag is cleared (step 442), and the guidance direction represented by the guidance direction data and the guidance distance represented by the guidance distance data are displayed. Is displayed on the display 11 (step 436), and the process returns to the monitoring of steps 404 and 406.

On the other hand, when the guidance distance for which the notification is received has not decreased twice in a row (step 440), the display state of the display 11 is displayed as the guidance direction represented by the guidance direction data and the guidance distance represented by the guidance distance data. It is controlled to be absent (step 446), and the process returns to the monitoring of steps 404 and 406.

Next, in step 432, when it is determined that the guidance distance represented by the guidance distance data is larger than the guidance distance represented by the previous guidance distance data, the direction undecided flag is set (step 444), and the display 11 is displayed. The state is controlled so that there is no display of the guide direction represented by the guide direction data and the guide distance represented by the guide distance data (step 446), and the process returns to the monitoring of steps 404 and 406.

The guidance process performed by the control device 12 has been described above.
According to such guidance processing, the direction undecided flag is set at the start of guidance processing, and is also set when the guidance distance notified from the mobile device 2 increases from the guidance distance notified immediately before that. Will be done. Then, the set direction undecided flag is cleared when the guidance direction is notified from the mobile device 2. Further, the set direction undecided flag is cleared even when the guide direction is registered in the guide direction data when the guide distance notified from the mobile device 2 decreases twice in a row.

Further, according to such a guidance process, the distance undecided flag is set at the start of the guidance process, and in a state where the direction undecided flag is not set, the guidance direction is different from the guidance direction previously notified from the mobile device 2. Set when the direction is notified. Then, the set distance undecided flag is cleared when the guide distance is notified from the mobile device 2.

In such guidance processing, the guidance direction and the guidance distance are displayed on the display 11 only when both the direction undecided flag and the distance undecided flag are not set, and the direction undecided flag and the distance undecided flag are displayed. When either is set, the guide direction and the guide distance are not displayed on the display 11.

Hereinafter, a processing example of such guidance processing will be shown.
Now, as shown in FIG. 5, when the mobile device 2 notifies the guidance direction "right turn" 501 after the guidance process is started, the control device 12 determines the guidance direction to "right turn" and the direction is undecided. Clear the flag. Further, at this point, the distance to the guide point targeted for the guidance direction "turn right" 501 is undecided, and the distance undecided flag is set, so that the display 11 is controlled to "no display" 551.

Next, when the control device 12 receives the notification of the guide distance "500 m" 502 from the mobile device 2, the control device 12 determines the guide distance to "500 m" and clears the distance undecided flag. Further, since the direction undecided flag is not set at this point, the fixed guide distance "500 m" is assumed to be the guide distance of the guide point that is the target of the fixed guide direction "turn right", and the display 11 "An arrow indicating a right turn and a guidance distance of 500 m" 552 are displayed.

Further, when the control device 12 is notified of the guidance distance "200m" 503, the control device 12 determines the guidance distance to "200m". Further, since the direction undecided flag is not set at this point, the fixed guide distance "200 m" is assumed to be the guide distance of the guide point that is the target of the fixed guide direction "turn right", and the display 11 "An arrow indicating a right turn and a guidance distance of 200 m" 553 are displayed.

Similarly, when the control device 12 is notified of the guidance distance "100m" 504, the control device 12 determines the guidance distance to "100m". Further, since the direction undecided flag is not set at this point, the fixed guide distance "100 m" is assumed to be the guide distance of the guide point that is the target of the fixed guide direction "turn right", and the display 11 "An arrow indicating a right turn and a guidance distance of 100 m" 554 are displayed.

Then, when the control device 12 receives the notification of the guidance direction "left turn" 505 from the mobile device 2, the control device 12 determines the guidance direction to "left turn". Further, the notification of the guidance direction "left turn" 505 is different from the guidance direction "right turn" 501 that received the previous notification, so that the guidance point is from the guidance point that is the target of the guidance direction "right turn" 501. Since the guide point has changed to the target guide point of the guide direction "turn left" 505 and the guide distance up to that point is no longer valid, the distance undecided flag is set. Then, in this way, since the guidance distance of the guidance point that is the target of the guidance direction "turn left" 505 is undecided, the display 11 is controlled to "no display" 555. Next, the control device 12 is a mobile device. Upon receiving the notification of the guidance distance "100m" 506 from 2, the guidance distance is fixed to "100m". Then, since the guide distance is fixed, the distance undecided flag is cleared. Further, since the direction undecided flag is not set at this point, the fixed guide distance "100 m" is assumed to be the guide distance of the guide point that is the target of the fixed guide direction "left turn", and the display 11 "An arrow indicating a left turn and a guidance distance of 100 m" 556 is displayed.

Then, when the mobile device 2 notifies the guide distance "500 m" 507, the guide distance is fixed to "500 m". Then, in this notification, since the guidance distance is increased from the previously notified guidance distance "100m" 506, the guidance point passes the target guidance point of the guidance distance "100m" 506, and the guidance point becomes the guidance distance "100m". Since the guide point has changed to the target guide point of "500 m" 507 and the guide direction up to that point is no longer valid, the direction undecided flag is set. Then, since the guide direction of the guide point to be the target of the guide distance "500 m" 507 is undecided in this way, the display 11 is controlled to "no display" 557.

Then, when the mobile device 2 notifies the guide distance "400 m" 508, the guide distance is fixed to "400 m". Further, at this point, the guidance direction of the target guidance point of the fixed guidance distance "400m" is undecided, and the direction undecided flag is set, so that the display 11 is maintained in the "no display" state.

Further, when the control device 12 is subsequently notified by the mobile device 2 of the guidance direction "diagonal right" 509, the control device 12 determines the guidance direction to "diagonal right", and since the guidance direction is determined, clears the direction undecided flag. .. Further, since the distance undecided flag is not set at this point, the fixed guide direction "diagonal right" is assumed to be the guide direction of the target guide point of the fixed guide distance "400 m" and displayed. 11 displays "an arrow indicating an oblique right and a guide distance of 400 m" 558.

Then, when the control device 12 receives the notification of the guidance distance "200m" 510, the control device 12 determines the guidance distance to "200m". Since the direction undecided flag is not set, the fixed guide distance "200 m" is assumed to be the guide distance of the target guide point in the fixed guide direction "diagonal right", and is displayed on the display 11. An arrow indicating diagonally right and a guide distance of 200 m "559 are displayed.

Next, when the control device 12 receives the notification of the guidance distance "500m" 511 from the mobile device 2, the control device 12 determines the guidance distance to "500m". Then, in this notification, since the guidance distance is increased from the previously notified guidance distance "200m" 510, the guidance point passes through the target guidance point of the guidance distance "200m" 510 and the guidance point becomes the guidance distance "200m". Since the guide point has changed to the target guide point of "500 m" 511 and the guide direction up to that point is no longer valid, the direction undecided flag is set. Further, in this way, since the guide direction of the target guide point of the guide distance "500 m" 511 is undecided, the display 11 is controlled to "no display" 560.

Further, when the control device 12 receives the notification of the guidance distance "400m" 512 from the mobile device 2, the guidance distance is fixed to "400m". At this point, the guidance direction of the target guidance point of the guidance distance "400m" 512 is undecided, and the direction undecided flag is set, so that the display 11 is maintained in the "no display" state.

Further, when the control device 12 receives the notification of the guidance distance "300m" 513 from the mobile device 2, the guidance distance is fixed to "300m". Then, since the reduction of the guide distance occurred twice in succession, the guide points targeted by the three guide distances "500 m" 511, the guide distance "400 m" 512, and the guide distance "300 m" 513 received so far. Since the guidance direction is the same as the guidance direction "diagonal right" 509 notified last, it is determined that the guidance direction is not notified from the mobile device 2, and the guidance direction is finally notified. It is confirmed as "diagonal right" which is the same direction as "diagonal right" 509, and the direction undecided flag is cleared. Then, according to the guide distance "300 m" determined to be the determined guide direction "diagonal right", the display 11 displays "an arrow indicating the oblique right and a guide distance 300 m" 561.

Then, when the control device 12 receives the notification of the guidance distance "200m" 514 from the mobile device 2, the guidance distance is fixed to "200m". At this point, since the direction undecided flag is not set, the display 11 is displayed with an "arrow indicating diagonally right" and a guide according to the fixed guide distance "200 m" and the fixed guide direction "diagonal right". Distance 200m "562 is displayed.

The processing example of the guidance processing performed by the control device 12 has been described above.
By the way, step 440 of the above guidance process may be a step of checking whether or not the guidance distance for receiving the notification has been continuously decreased N times, with N being an arbitrary integer of 1 or more.

Further, in the above guidance processing, only when both the direction undecided flag and the distance undecided flag are not set, the guide direction and the guide distance of the display 11 are displayed, and either the direction undecided flag or the distance undecided flag is displayed. When the flag is set, the guide direction and the guide distance are not displayed on the display 11, but this may be corrected as follows.
That is, in step 420 of the guidance process shown in FIG. 4, only the guidance direction registered in the guidance direction data is displayed on the display 11, and when the distance undecided flag is set, only the guidance direction is displayed. You may do so.

Further, in step 446 of the guidance process shown in FIG. 4, only the guidance distance registered in the guidance distance data is displayed on the display 11, and when the direction undecided flag is set, only the guidance distance is displayed. You may do so.

Here, FIG. 6 shows a processing example of guidance processing when only the guidance direction is displayed when the distance undecided flag is set and only the guide distance is displayed when the direction undecided flag is set. ..

The sequence of notification of the guidance direction and the guidance distance from the mobile device 2 in FIG. 6 is the same as that in FIG.
As is clear from the comparison with FIG. 5, in FIG. 6, the guidance distance notification is made when the direction undecided flag is set in response to the guidance distance notifications 507 and 511 and when the direction undecided flag is set. When 508 and 512 are received, the display of only the guide distance 603, 604, 605, 606 is performed.

Further, in FIG. 6, when the distance undecided flag is set in response to the notifications 501 and 505 of the guiding direction, the display 601 and 602 of only the guiding direction are performed. Although not shown in FIG. 6, when the distance undecided flag is set and the notification of the guidance direction is received, only the guidance direction is displayed.

The embodiment of the present invention has been described above.

1 ... In-vehicle device, 2 ... Mobile device, 11 ... Display, 12 ... Control device, 13 ... Memory, 14 ... Communication interface, 201 ... Mobile communication device, 202 ... Voice input / output device, 203 ... Display unit, 204 ... Operation unit , 205 ... Peripheral device, 206 ... Navigation application, 207 ... Mobile phone application, 209 ... Communication interface, 210 ... Control unit.

Claims (11)

An in-vehicle device that can connect to a mobile device and communicate
Guidance distance indicating the distance to the guidance point, which is the next passing point among the points to be guided on the route to the destination, and the guidance indicating the passing direction of the guidance point, which are set in the mobile device. The guidance information receiving unit that receives the direction from the mobile device, and
With the display
The guidance information receiving unit includes a guidance display control unit that displays the guidance distance last received from the mobile device and the guidance direction last received on the display.
When the guidance direction received from the mobile device represents a passing direction different from the guidance direction previously received from the mobile device, the guidance display control unit waits until the next reception of the guidance distance from the mobile device. An in-vehicle device characterized by suppressing the display of the guide distance. An in-vehicle device that can connect to a mobile device and communicate
Guidance distance indicating the distance to the guidance point, which is the next passing point among the points to be guided on the route to the destination, and guidance indicating the passing direction of the guidance point, which are set in the mobile device. A guidance information receiving unit that receives the direction from the mobile device, and
With the display
The guidance information receiving unit includes a guidance display control unit that displays the guidance distance last received from the mobile device and the guidance direction last received on the display.
When the guidance distance received from the mobile device represents a distance larger than the guidance distance previously received from the mobile device, the guidance display control unit waits until the next reception of the guidance direction from the mobile device. An in-vehicle device characterized by suppressing the display of the guidance direction. An in-vehicle device that can connect to a mobile device and communicate
Guidance distance indicating the distance to the guidance point, which is the next passing point among the points to be guided on the route to the destination, and the guidance indicating the passing direction of the guidance point, which are set in the mobile device. A guidance information receiving unit that receives the direction from the mobile device, and
With the display
The guidance information receiving unit includes a guidance display control unit that displays the guidance distance last received from the mobile device and the guidance direction last received on the display.
If the guidance distance received from the mobile device represents a distance larger than the guidance distance previously received from the mobile device, the guidance display control unit then receives the guidance direction from the mobile device. An in-vehicle device characterized in that the display of the guidance direction is suppressed until the distance represented by the guidance distance received from the mobile device decreases continuously for a predetermined number of times. The in-vehicle device according to claim 2 or 3.
When the guidance display control unit does not suppress the display of the guidance direction, the guidance direction received from the mobile device represents a passing direction different from the guidance direction previously received from the mobile device. Next, an in-vehicle device characterized in that the display of the guidance distance is suppressed until the guidance distance is received from the mobile device. The in-vehicle device according to claim 1.
When the guidance distance received from the mobile device represents a distance larger than the guidance distance previously received from the mobile device, the guidance display control unit waits until the next reception of the guidance direction from the mobile device. An in-vehicle device characterized by suppressing the display of the guidance direction. The in-vehicle device according to claim 1.
If the guidance distance received from the mobile device represents a distance larger than the guidance distance previously received from the mobile device, the guidance display control unit then receives the guidance direction from the mobile device. An in-vehicle device characterized in that the display of the guidance direction is suppressed until the distance represented by the guidance distance received from the mobile device decreases continuously for a predetermined number of times. The in-vehicle device according to claim 1, 4, 5 or 6.
The guide display control unit is an in-vehicle device characterized in that while the display of the guide distance is suppressed, the display of the guide direction is also suppressed. The in-vehicle device according to claim 2, 3, 4, 5, 6 or 7.
The guidance display control unit is an in-vehicle device characterized in that while the display of the guidance direction is suppressed, the display of the guidance distance is also suppressed. The in-vehicle device according to claim 1, 2, 3, 4, 5, 6, 7 or 8.
The guidance display control unit is an in-vehicle device characterized by displaying an arrow indicating the guidance direction as a display of the guidance direction. The in-vehicle device according to claim 1, 2, 3, 4, 5, 6, 7, 8 or 9.
The display is an in-vehicle device characterized in that it is arranged in a meter cluster of an automobile. A navigation system comprising the in-vehicle device according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 and a mobile device.
The mobile device is
A route setting unit that sets the route to the destination,
The guidance distance indicating the distance to the guidance point, which is the next passing point among the points to be guided on the route, and the guidance direction indicating the passing direction of the guidance point are transmitted to the in-vehicle device via the communication. A navigation system characterized by having a guidance information transmitting unit to be transmitted.