JP2000205887A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device having a display regulation function for a driver. SOLUTION: When the operation of map scale change is started and the detailed operation of map scale is selected to indicate a smaller area, it is judged whether or not the present scale is the minimum (S8), and, when the scale is the minimum and the detailed operation is inputted from the rear seat remote controller, it is judged whether or not a vehicle is running (S15). In the case where the vehicle is at a stop, front- and rear-seat displays are changed to an indication of city (narrow street) map (S13). In the case where the vehicle is running, the map is not indicated on the front-seat display, and a message 'Not displayed because of rear-seat operation' showing a limited indication is imposed, and further the rear-seat display is changed to an indication of city (narrow street) map (S16), and then this routine is ended.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a navigation device mounted on a vehicle.

[0002]

2. Description of the Related Art In recent years, a vehicle has been provided with a navigation device (see Japanese Patent Application Laid-Open No. 6-103499).

This navigation device is provided with a main operation unit operated by a driver and an auxiliary operation unit operated by a passenger other than the driver. Limiting means is provided for limiting only an input operation in the main operation unit to a constant.

[0004] Accordingly, the input operation in which the operation is restricted by the driver during the traveling, specifically, the setting of the starting point and the destination of the vehicle on the road map and the selection of auxiliary information such as sightseeing information. Was restricted so that the driver could not do it.

[0005]

However, during driving, it is desirable to restrict the display of a map of an urban area (narrow street) or a television or video image to a driver.

The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a navigation device having a function of restricting display to a driver.

[0007]

According to a first aspect of the present invention, there is provided a navigation apparatus, comprising:
In a navigation device mounted on a vehicle, first display means visible from a driver's seat, second display means visible from a seat other than the driver's seat, and a first display capable of performing an input operation from the driver's seat Input means, a second input means for performing an input operation from a seat other than the driver's seat, and display information corresponding to the content of an operation input from each of the input means is displayed from both of the display means. At this time, when the operation content is an input from the second input operation means and the vehicle is running, a display restriction means for restricting display on the first display means is provided.

That is, when an attempt is made to display a map of an urban area (narrow street) from a rear seat or the like other than the driver's seat, the second input means for performing an input operation from a seat other than the driver's seat is used. An input operation for displaying a map of a narrow street) is performed. Then, the first display means for visually recognizing the map of the city area (narrow street) corresponding to the operation content of the input operation from the driver's seat, and the second display means for recognizing the map from the seats other than the driver's seat. When the display is performed, when the vehicle is traveling, the display on the first display means is restricted by the display restriction means.

Further, in the navigation device according to the second aspect, when the display on the first display means is restricted by the display restriction means, the content indicating the restricted state is displayed on the first display means. There is further provided a restriction state display means.

That is, when the display on the first display means is restricted by the display restriction means, the contents indicating the restricted state are displayed on the first display means by the restricted state display means.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a navigation device 1 according to the present embodiment. The navigation device 1 is mounted on a vehicle.

The navigation apparatus 1 includes a navigation main body 11 and a video distributor 12, and the video distributor 12 is provided on an instrument panel.
A front seat display 13 as first display means visible from the driver's seat, and a rear seat as second display means provided on the ceiling at the rear of the front seat and visible from the rear seat other than the driver's seat. The display 14 is connected.

The navigation body 11 includes a CPU,
Navigation control unit 21 having ROM and RAM
And the navigation control unit 21
Is connected to a switch panel 22 provided as a first input means provided on an instrument panel and capable of performing an input operation from a driver's seat. The navigation control unit 2
1 is a CD-ROM for reading map data from a CD-ROM.
A ROM drive 23, a memory 24 for storing data during operation, and an interface 25 are connected.
Via the interface 25, the vehicle speed, the operation state of the brake, the reverse of the shift lever, the neutral,
And the shift state of parking is input as a vehicle signal so that the traveling state of the vehicle can be detected. Further, the navigation control unit 21 includes a GP
An S antenna 26, a gyro 27, and a speaker 28 for voice guidance are connected to each other, so that the current position of the vehicle can be ascertained and the operation state and the like can be output by voice.

The navigation control unit 21 is connected with a radio / optical beacon receiving unit 31, an FM multiplex tuner 32, and a TV tuner 33,
The system is configured to acquire traffic information such as traffic congestion and to watch a television broadcast and a video connected to the VTR jack 34 of the TV tuner 33. The navigation control unit 21 is configured to output video data such as a map display to the first video distribution unit 36 of the video distributor 12 via the display unit 35.

The video distributor 12 is provided with a video switching unit 42 for inputting video data output from the first video distribution unit 36 and video data generated by the imposition screen generating unit 41. The video switching unit 42
Is configured to be able to selectively display both input video data on the front seat display 13 and the rear seat display 14. The video distributor 12 is provided with a second video distribution unit 43. The second video distribution unit 43 receives a TV or video image from the TV tuner 33 and receives the input. The image is selectively displayed on the front seat display 13 and the rear seat display 14. Further, the video distributor 12 is provided with a video distribution controller 44 connected to the navigation controller 21 of the navigation main body 11.
Reference numeral 4 includes a CPU, a ROM, and a RAM, and is configured to control the display on the front-seat display 13 and the rear-seat display 14. A remote control light receiving unit 45 is connected to the video distribution control unit 44, and infrared data 47 from a rear seat remote controller 46 as a second input means for input operation from a rear seat other than the driver seat. It is configured to be able to receive

The rear seat remote controller 46 has an ON / OFF switch 51 for turning on / off the navigation device 1, a rear seat map / CD switch 71 for displaying a road map on the rear seat display 14, and a rear seat display 14.
A rear seat TV switch 54 for displaying a TV image is provided. When the rear seat TV switch 54 is operated, a VTR switch 55 for displaying a video image on the rear seat display 14 and a TV channel are set. A channel switch 56 for selection is provided. On the side of the channel switch 56, a wide switch 57 for making the display range of the rear seat display 14 horizontally long, and volume switches 58, 58 for adjusting sound.
A memory switch 59 for displaying a currently receivable channel and a tuning switch 6 are provided at the top.
0 and a screen switch 61 capable of changing contrast and the like.

The rear remote controller 46 includes a CD-ROM.
Map / CD switch 7 for displaying map information from ROM
1 and a menu switch 72 for displaying a menu screen
And a bird view switch 73 for changing the viewpoint of the displayed map, and details for enlarging and reducing the displayed map.
A wide area switch 74 is provided. Further, the rear seat remote controller 46 has a guide switch 75, a route switch 76 for searching a traveling route, and a movement key 77 for moving a cursor on a menu screen and scrolling the screen.
And a switch 78 for returning the operation procedure of the menu screen to the previous state, a location registration switch 80 for registering the current location, and a decision switch 79 for selecting the display content of the cursor position on the menu screen. ing.

The operation of the navigation device 1 in the present embodiment having the above configuration will be described with reference to the flowcharts shown in FIGS.

That is, the navigation device 1 comprises:
In step S1 in the navigation mode, a map of the current location is displayed on the front and rear seat displays 13 and 14. Then, it is determined whether or not the map scale changing operation has been performed from the switch panel 22 or the rear seat remote controller 46 (S2). If the map scale changing operation has not been performed, the process branches to step S17, while the map is changed. If the scale change operation has been performed, it is determined whether or not the map scale wide area operation for displaying a wider range has been performed (S
3). If a wide-area operation has been performed, it is determined whether or not the current scale is the maximum (S4). If the current scale is the maximum, a maximum wide-area display is performed (S5). If not, the scale is changed to a map of a wider area (S6), and this routine ends.

If it is determined in step S3 that the operation is not a wide-area operation of the map scale, it is determined whether a detailed operation of the map scale for displaying a smaller range is performed (S7). If the detailed operation has not been performed, the process branches to step S1, whereas if the detailed operation has been performed, it is determined whether or not the current scale is the minimum (S1).
8) If not the minimum, switch to a more detailed scale display (S9) and end this routine. If it is determined that the detailed operation is the minimum operation in step S8, it is determined whether the detailed operation is an operation from the front seat, that is, whether the detailed operation is an input from the switch panel 22 in the navigation device 1. It is determined (S10), and if the operation is from the front seat, it is determined whether or not the vehicle equipped with the navigation device 1 is running (S11). If the vehicle is running, the routine is terminated while the minimum scale is displayed (S12). If the vehicle is stopped, both the front and rear seat displays 13 and 14 are displayed in the city area (small street). ) Switching to map display (S13), and ending this routine. In this way, it is possible to restrict the display of the city area (narrow street) map on the front and rear seat displays 13 and 14 when the vehicle is stopped, while not displaying the city area (narrow street) map when the vehicle is traveling.

If it is determined in step S10 that the operation is not from the front seat, it is determined whether or not the operation is from the rear seat, that is, whether the input is from the rear seat remote controller 46 (S14). If the operation is not from the rear seat, the process branches to step S1. If the operation is from the rear seat, it is determined whether the vehicle is running (S15).
As a result, when the vehicle is stopped, both the front and rear seat displays 13 and 14 are switched to the display of a city area (narrow street) map (S13), and this routine is ended while the vehicle is running. In this case, the map is hidden on the front seat display 13 and the display is restricted, and “impossible to display because the rear seat is being operated” is imposed on the rear seat display 14. The display is switched to the display of the (small street) map (S16), and this routine ends.

As described above, when the operation is performed from the rear seat using the rear-seat remote controller 46, there is a possibility that the driving may be hindered by hiding the front-seat display 13 that is visible from the driver's seat. It is possible to prohibit the display of the city area (narrow street) map to the driver, thereby improving safety. At this time, since the display on the front seat 13 for which the display of the city area (small street) map is prohibited is displayed, "The display cannot be performed because the rear seat is being operated". Can give a sense of security to the driver as compared with the case where the display by the user suddenly becomes the non-display state. In the rear seat display 14, the display of the city area (small street) map is performed as usual without restriction, so that the function as the navigation device 1 is sufficiently performed regardless of whether the vehicle is running or stopped. And convenience is improved.

In step S17, it is determined whether or not a screen scroll operation has been performed. As a result, if the screen is not scrolled, the process branches to step S24. If the screen is scrolled, the process proceeds to step S24.
It is determined whether the operation is from the front seat (S18). If the operation is from the front seat, it is determined whether or not the vehicle is traveling (S19). If the vehicle is traveling, a predetermined one-touch scroll is performed, specifically, vertical, horizontal, or diagonal. In any of the scroll operations, the map screen moved by １ ／ screen is displayed (S20), and then this routine ends.
If the vehicle is stopped, a map screen arbitrarily moved according to the operation amount is displayed (S21), and then this routine is terminated. As described above, when the vehicle is stopped, the map screen can be arbitrarily moved according to the operation amount.
By moving the map screen by a predetermined one-touch scroll, detailed work can be prohibited.

If it is determined in step S18 that the operation is not from the front seat, it is determined whether or not the operation is from the rear seat (S22). In this case, while branching to step S18, in the case of an operation from the rear seat, the map screen arbitrarily moved according to the operation amount is displayed in both cases of running and stopping (S23). Thereafter (S21), this routine ends.
As described above, when the operation is performed from the rear seat using the rear-seat remote controller 46, the map screen can be moved according to the operation amount, thereby preventing the operability from being lowered.

In step S24, it is determined whether a route setting operation has been performed. If the operation is not a route setting operation, the process branches to step S32. On the other hand, if the operation is a route setting operation, it is determined whether the operation is from the front seat (S25). In the case of an operation from the front seat, it is determined whether or not the vehicle is traveling (S26). If the vehicle is traveling, no route setting operation is received (S27). When the vehicle is in the middle, a route setting operation is enabled, and the contents of the operation are displayed on the front and rear seat displays 13 and 1.
4 is displayed (S28), and this routine ends. As described above, when the vehicle is stopped, the route setting operation from the front seat can be performed, and when the vehicle is traveling, the route setting operation from the front seat can be prohibited. Therefore, safety can be improved.

If it is determined in step S25 that the operation is not from the front seat, it is determined whether or not the operation is from the rear seat (S29). In this case, the process branches to step S25, while in the case of an operation from the rear seat, it is determined whether or not the vehicle is running (S30). When the vehicle is stopped, a route setting operation is enabled, and the operation content is displayed on the front seat and rear seat display 13,
14 (S28), this routine is ended, while the vehicle is running, the operation is accepted, and the map is hidden on the front seat display 13 to indicate a state where the display is restricted. It cannot be displayed because the rear seat is being operated. ''
And the rear seat display 14
In, the contents of the operation are displayed (S31), and this routine ends.

As described above, when an operation is performed from the rear seat using the rear-seat remote controller 46, the front seat display 13 is not displayed and the message "Cannot be displayed because the rear seat is being operated" is displayed. It is possible to prohibit the display of the operation contents of the route setting that may cause a trouble to the driver, and it is possible to improve safety. Also, the rear seat display 14
, The operation content of the route setting is displayed as usual without being restricted, so that the navigation device 1
Function can be fully utilized regardless of whether the vehicle is running or stopped.

In step S32, it is determined whether or not a TV / video operation has been performed. If the operation is not a TV / video operation, the process branches to step S40, while the TV / video operation is not performed.
In the case of the video operation, it is determined whether or not the operation is from the front seat (S33). In the case of an operation from the front seat, it is determined whether or not the vehicle is running (S34). If the vehicle is running, the TV / video operation is not accepted (S35), and this routine is terminated. If the vehicle is stopped, TV or video images are displayed on the front and rear displays 13 and 14 (S36), and this routine ends.
As described above, when the vehicle is stopped, T
While it is possible to display V-video or video video, it is possible to prohibit TV / video operation during traveling, thereby improving safety.

If it is determined in step S33 that the operation is not from the front seat, it is determined whether or not the operation is from the rear seat (S37). In this case, the process branches to step S33, while in the case of an operation from the rear seat, it is determined whether or not the vehicle is running (S38). If the vehicle is stopped, a TV or video image is displayed on the front and rear displays 13 and 14 (S36), and this routine is terminated. Then, an operation screen as a navigation is displayed, and a TV or video image is displayed on the rear seat display 14 (S39), and this routine ends.

As described above, when the operation is performed from the rear seat using the rear seat remote controller 46, the front seat display 13 displays
By displaying the operation screen as the navigation, the function as the navigation can be utilized. Further, on the rear seat display 14, the TV image or the video image is displayed as usual without restriction. Therefore, the driver can concentrate on driving, and the passenger can watch a TV image or a video image.

In step S40, it is determined whether or not an operation for displaying guidance information has been performed. If the operation is not an operation for displaying guidance information, it is determined whether the operation is other than the above-described operation such as screen adjustment (S41). If the operation is not an operation such as screen adjustment, the process branches to step S1. On the other hand, in the case of an operation such as screen adjustment, the content of the operation is displayed (S42), and this routine ends. In the case where the operation for displaying the guidance information is performed in step S40, it is determined whether or not the operation is performed from the front seat (S43). In the case of an operation from the front seat, it is determined whether or not the vehicle is traveling (S44). If the vehicle is traveling, the guide information operation is not accepted (S45), and this routine is terminated while the vehicle is stopped. In the middle case, the guidance information screen is displayed on the front and rear displays 13 and 14 (S46),
This routine ends. As described above, the guide information operation can be performed when the vehicle is stopped, and the guide information operation from the front seat can be prohibited when the vehicle is running, so that the safety can be improved.

If it is determined in step S43 that the operation is not from the front seat, it is determined whether or not the operation is from the rear seat (S47). In this case, the process branches to step S43, while in the case of an operation from the rear seat, it is determined whether or not the vehicle is running (S48). When the vehicle is stopped, the guidance information screen is displayed on the front and rear seat displays 13 and 14 (S
46) While ending this routine, if the vehicle is running, the front seat display 13 is hidden and the display is restricted and the display is "impossible because the rear seat is being operated". At the same time, a guidance information screen is displayed on the rear seat display 14 (S49), and this routine ends.

As described above, when an operation is performed from the rear seat using the rear seat remote controller 46, the front seat display 13 is not displayed and the message "Cannot be displayed because the rear seat is being operated" is displayed. It is possible to prohibit the display of the operation contents of the guide information that may cause a trouble to the driver, and it is possible to improve safety. In addition, in the rear seat display 14, since the operation content of the guide information is performed as usual without restriction, the function as the navigation device 1 is fully utilized regardless of whether the vehicle is traveling or stopped. Can be.

In the present embodiment, display processing of an urban area (narrow street), scroll processing of a map screen, route setting processing, TV / video image display processing, and guidance information operation processing The above description has been made with reference to an example of the flowchart in the case where the processing is performed in the order described above, but the present invention is not limited to this order.

[0035]

As described above, in the navigation apparatus according to the first aspect of the present invention, an input operation for displaying a map of an urban area (narrow street) is performed from the rear seat using the second input means. Even if the first visible from the driver's seat
The display on the display means can be restricted by the display restricting means, so that the display of a map of the city area (narrow street) or a video such as a television or a video to the driver, which may hinder driving, is provided to the driver. Can be regulated. Thereby, safety can be improved. Also, at this time, the display of the map of the city area (small street) on the second display means is performed normally without any restriction, so that the second display means is provided in the rear seat, so that the navigation is performed. The function as the device can be fully utilized irrespective of whether the vehicle is traveling or stopped, and the convenience is improved.

In the navigation apparatus according to the second aspect, when the display on the first display means is restricted by the display restriction means, the content indicating the restricted state is as follows:
Since the restriction state display means displays on the first display means, the first state is displayed based on the operation input to the second input means.
Can provide a sense of security as compared with the case where the display by the display means suddenly goes into the non-display state.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a plan view showing a rear seat remote controller according to the embodiment.

FIG. 3 is a flowchart showing an operation of the navigation device according to the embodiment.

FIG. 4 is a flowchart following FIG. 3;

FIG. 5 is a flowchart following FIG. 4;

FIG. 6 is a flowchart following FIG. 5;

FIG. 7 is a flowchart following FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Navigation apparatus 11 Navigation main body 12 Image distributor 13 Front seat display 14 Rear seat display 21 Navigation control unit 22 Switch panel 44 Image distribution control unit 46 Rear seat remote control

Claims (2)

[Claims] 1. A navigation device mounted on a vehicle, wherein first display means visible from a driver's seat, second display means visible from a seat other than the driver's seat, and input operation from the driver's seat A first input unit capable of performing the following operations; a second input unit for performing an input operation from a seat other than the driver's seat; and display information corresponding to an operation performed by each of the input units. A display restricting unit configured to restrict display on the first display unit when the operation content is an input from the second input operation unit and the vehicle is running, when displaying on the display unit. A navigation device characterized by the following. 2. When the display on the first display unit is restricted by the display restriction unit, the display unit further includes a restricted state display unit for displaying the content indicating the restricted state on the first display unit. The navigation device according to claim 1, wherein: