JP2007286158A - Navigation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation apparatus which can be easily changed over to a road map of a map display type and scale ratio meeting crew's preference. <P>SOLUTION: The words specifying the map display type and scale of the road map displayed on a display monitor 16 are stored together with the map display type and the scale thereof as map display changeover data in a memory section 111. When the road map displayed on the display monitor 16 is desired to change over to the road map of the desired map display type and the scale, the crew utters the words to specify the map display type and scale toward a microphone 19 while depressing a PTT switch 19a provided at the microphone 19. The map display type and the scale stored in the map display changeover data are read out by the words uttered by the crew. The road map of the display monitor 16 changes over to the data of the map display type and the scale. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a navigation device that can change a map display format of a road map displayed on a display monitor.

2. Description of the Related Art A map display device that can switch the display from a planar map to a bird's-eye view map or the like by pressing a displayed changeover switch on a monitor screen provided with a touch panel is known (for example, Patent Document 1).
Japanese Patent Laid-Open No. 11-24556

  In a conventional map display device as described in Patent Document 1, the map display format can be switched from a planar map to a bird's eye view map or the like. By the way, the appropriate scale ratio of the map displayed by switching differs depending on the map display format, the place where the map is displayed, and the like. For example, when switching from a planar map to a bird's-eye view map, the bird's-eye view map is displayed when it is desired to display a state far from the traveling direction, and therefore, it is preferable to reduce the scale ratio compared to the planar map. Conversely, when switching from a bird's eye view map to a plane map, it is preferable to increase the scale ratio of the plane map, but the scale ratio also differs between places where buildings such as downtowns are densely populated and urban areas. However, the conventional map display device as described in Patent Document 1 has a problem that it can only switch the map display format and cannot simultaneously switch to a desired scale ratio.

(1) The invention of claim 1 is a navigation device for displaying a road map on a display monitor, a word storage means for storing a word specifying the map display format and scale of the road map, and a word for inputting a word uttered by an occupant When it is determined that the input means and the word input by the word input means are the same as one of the words stored in the word storage means, A road map display control means for switching the first road map displayed on the monitor to a map display format specified by the words determined to be the same and a second road map of a reduced scale is provided.
(2) The invention of claim 2 is a navigation device for displaying a road map on a display monitor, a word storage means for storing a word specifying the map display format and scale of the road map, and a word for inputting a word uttered by an occupant When it is determined that the input means and the word input by the word input means are the same as one of the words stored in the word storage means, Road map display control means for displaying the first road map displayed on the monitor, the map display format specified by the words determined to be the same, and the scaled second road map in a two-divided screen. It is characterized by.
(3) The invention of claim 3 is the navigation device according to claim 1 or 2, wherein the map display format is a bird's eye view map or a planar map display format.
(4) The invention of claim 4 is the navigation device according to any one of claims 1 to 3, wherein the word specifying the map display format and scale of the road map is one word or a combination of a plurality of words. It is characterized by being.
(5) The invention according to claim 5 is the navigation apparatus according to any one of claims 1 to 4, wherein the word specifying the map display format and scale to be stored by the word storage means is input by characters or voice. An input means is provided.

  According to the present invention, an occupant can display a road map of a desired map display format and scale on a display monitor by simply issuing a word specifying the map display format and scale of the desired road map. Therefore, the occupant can easily display a map display format and a scale road map according to his / her preference.

  A configuration of a navigation apparatus according to an embodiment of the present invention is shown in FIG. The navigation apparatus 1 of FIG. 1 can input the voice which a driver | operator utters with the microphone 19, and can operate the navigation apparatus 1 by a voice. The navigation device 1 includes a control circuit 11, a ROM 12, a RAM 13, a current location detection device 14, an image memory 15, a display monitor 16, a speaker 17, an input device 18, a microphone 19, a voice recognition unit 110, a data storage unit 111, and a disk drive 112. Have. The disk drive 112 is loaded with a DVD-ROM 113 in which map data to be displayed on the display monitor 16 is recorded.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and performs various controls by executing a control program stored in the ROM 12 using the RAM 13 as a work area. When the control circuit 11 performs a predetermined route search process based on the map data stored in the DVD-ROM 113, the processing result is displayed on the display monitor 16 as a search route.

  The current position detection device 14 is a device that detects the current position of the vehicle. For example, a vibration gyro 14a that detects the traveling direction of the vehicle, a vehicle speed sensor 14b that detects the vehicle speed, and a GPS signal from a GPS (Global Positioning System) satellite. It consists of a GPS sensor 14c and the like. The navigation device 1 determines a map display range, a route search start point, and the like based on the current location of the vehicle detected by the current location detection device 14, and displays the current location on the map.

  The image memory 15 stores image data to be displayed on the display monitor 16. This image data includes road map drawing data and various graphic data, which are generated as appropriate based on map data stored in the DVD-ROM 113 read by the disk drive 112. The navigation device 1 can perform map display and the like by using the image data generated in this way.

  The display monitor 16 provides the occupant with various information such as a road map near the vehicle position as a screen display based on various information such as map data. The loudspeaker 17 generates voices for guiding various occupant input operations and for guiding routes to the occupant. The input device 18 has an input switch for a passenger to set various commands, and is realized by a remote controller or the like. The occupant manually operates the input device 18 according to instructions on the display screen of the display monitor 16 to select a destination and set the destination.

  The microphone 19 inputs a sound emitted by the occupant. The microphone 19 is provided with a PTT (Press to Talk) switch 19 a, and when a sound is emitted while the PTT switch 19 a is pressed, the sound is input to the microphone 19. The voice recognition unit 110 analyzes the voice input by the microphone 19 and recognizes the words of the voice. The recognition result is output to the control circuit 11.

  When the destination is set by the occupant, the navigation apparatus 1 performs a route calculation from the current location detected by the GPS sensor 14c to the destination based on a predetermined algorithm. Hereinafter, this route calculation is referred to as route search. The route thus obtained (hereinafter referred to as a recommended route) is displayed on the screen in a manner different from other roads by changing the display format, for example, the display color. Thus, the passenger can recognize the recommended route on the map on the screen. In addition, the navigation device 1 instructs the occupant to travel in the traveling direction using a screen or voice so that the vehicle can travel according to the recommended route, thereby guiding the route of the vehicle.

  The data storage unit 111 is configured by a rewritable recording medium such as a memory or a hard disk, and stores data necessary for various functions of the navigation device 1. Information stored in the data storage unit 111 is appropriately read out and used by the control circuit 11. The data storage unit 111 stores map display switching data in which words for specifying the map display format and scale of the road map are stored. Details of the map display switching data will be described later.

  The disk drive 112 reads map data for displaying a map on the display monitor 16 from the loaded DVD-ROM 113. The map data includes map display data, route search data, and the like, and the display and route search data include road link information and node information. The map display data has map data of a plurality of scales from a wide area to details, and the scale of the display map can be changed according to the passenger's request. The map data may be read from a recording medium other than the DVD-ROM 113, such as a CD-ROM or a hard disk.

  The map display switching data 20 stored in the data storage unit 111 will be described with reference to FIG. The map display switching data 20 stores a word 21 specifying the map display format and scale of the road map, a map display format 22 specified by the word 21, and a scale 23 of the road map. The word 21 that specifies the map display format and scale of the road map is preferably a word that does not have a large number of words, such as “drive” or “street”. Here, the map display format 22 is a road map display format such as a bird's-eye view map or a planar map. The scale 23 of the map is represented by the distance between grid lines of the grid lines displayed on the road map. The map display switching data 20 is input from the passenger.

  The input operation of the map display switching data 20 will be described with reference to FIGS. The occupant inputs the word 21 specifying the map display format 22 and the scale 23 of the road map, the map display format 22 and the scale 23 of the road map to the map display switching data 20 by the following operation.

  When the occupant selects voice map display setting from a setting menu (not shown), a word input screen 30 shown in FIG. 3 is displayed. FIG. 3 is a diagram for explaining an operation of inputting a word specifying a map display format and a scale of a road map. On the word input screen 30, a word display column 31 for displaying a word input by the input device 18 is displayed together with a guidance sentence “Please input a word for displaying a map”. Also, at the bottom of the word input screen 30, there are a return mark 32 for returning to the previous display screen, a next mark 33 for proceeding to the next input screen, and a cancel mark 34 for stopping the input operation halfway. Is displayed. The occupant inputs a word specifying a map display format and a scale by operating the input device 18. Here, it is assumed that the word “drive” is input. Then, the word “drive” is displayed in the word display column 31. After inputting the desired word, the occupant operates the input device 18 to select the next mark 33 and proceeds to the next input screen.

  When the next mark 33 is selected on the word input screen 30, a map display format selection screen is displayed. FIG. 4 is a diagram for explaining the map display format selection screen 40. On the map display format selection screen 40, a map display format candidate 41 is displayed together with a guidance sentence “Please select a map display format”. The occupant selects a desired map display format from the map display format candidates 41. In this embodiment, “bird's-eye view map”, “planar map with north up”, and “planar map with vehicle traveling direction up” are displayed as map display format candidates 41. Similarly to the word input screen 30 of FIG. 3, a return mark 32, a next mark 33, and a cancel mark 34 are displayed. Here, it is assumed that the occupant has selected “bird's-eye view map” from the map display format candidates 41. The occupant who has selected the map display format selects the next mark 33 and proceeds to the next input screen.

  When the next mark 33 is selected on the map display format selection screen 40, a map scale selection screen is displayed. FIG. 5 is a diagram for explaining the map scale selection screen 50. On the map scale selection screen 50, a distance between grid line candidates 51 of the grid lines displayed on the road map is displayed together with a guidance sentence “Please select a map scale”. The occupant selects a distance between grid lines of a desired distance from among the distance candidates 51 between grid lines. By selecting the distance between the grids, the occupant selects the scale of the road map. In this embodiment, “10 km”, “1 km”, “500 m”, “50 m”, and “25 m” are displayed as the distance candidates 51 between grid lines. Similarly to the word input screen 30 of FIG. 3, a return mark 32, a next mark 33, and a cancel mark 34 are displayed. Here, it is assumed that the occupant has selected “500 m” from the grid line distance candidates 51. The occupant who has selected the scale of the road map selects the next mark 33 using the input device 18 and proceeds to the next confirmation screen.

  When the next mark 33 is selected on the map scale selection screen 50, an input confirmation screen is displayed. FIG. 6 is a diagram for explaining the input confirmation screen. On the input confirmation screen 60, an input result 61 is displayed for confirmation together with an inquiry sentence “Are you sure?”. Then, a NO mark 62 and a YES mark 63 are displayed so that the passenger's confirmation can be input. Further, the cancel mark 34 is displayed on the input confirmation screen 60 as in the word input screen 30 of FIG. Here, when the occupant selects the YES mark 63, the input result 61 is stored in the map display switching data 20. When the NO mark 62 is selected, the word input screen 30 shown in FIG. 3 is displayed, and input can be performed again from the beginning.

  An occupant map switching operation will be described with reference to FIGS. As shown in FIG. 7, it is assumed that the occupant is traveling while displaying on the display monitor 16 a scaled plane map 70 having a grid line distance of 100 m. On the plane map 70, grid lines 72a to 72d, 73a, 73b and an inter-grid line mark 74 indicating the distance between grid lines are displayed along with the vehicle position mark 71 in the vertical and horizontal directions. At this time, it is assumed that the occupant wants to display a scale bird's-eye view map with a distance between grid lines of 500 m.

  The occupant presses the PTT switch 19 a provided on the microphone 19 and issues “drive” toward the microphone 19. As a result, the road map displayed on the display monitor 16 is switched from the planar map 70 in FIG. 7 to the bird's-eye view map 80 in FIG. In the bird's-eye view map 80, grid lines 82 a to 82 g and 83 a to 83 d are displayed along with the own vehicle position mark 81, and an inter-grid line mark 84 indicating the distance between the grid lines. As described above, the occupant can switch the road map displayed on the display monitor 16 to a desired map display format (bird's-eye view map) and a scale (500 m) road map.

  Next, the road map display switching process of the navigation device 1 of this embodiment will be described with reference to the flowchart of FIG. The processing of FIG. 9 is executed in the control circuit 11 by a program that starts when the road map is displayed on the display monitor 16.

  In step S901, it is determined whether the PTT switch 19a provided in the microphone 19 has been pressed. If the button has been pressed, an affirmative decision is made in step S901 and the process proceeds to step S902. If not, step S901 is repeated. In step S902, the speech recognition unit 110 recognizes the words input to the microphone 19.

  In step S903, it is determined whether the speech-recognized word is stored in the map display switching data 20. If it is stored, an affirmative determination is made in step S903, and the process proceeds to step S904. If it is not stored, the process returns to step S901. In step S904, the map display format and scale corresponding to the recognized word are read from the map display switching data 20. In step S905, the map display format and scale road map read from the map display switching data 20 are displayed on the display monitor 16.

The navigation device 1 according to the above embodiment has the following operational effects.
(1) An occupant selects a map specifying the map display format and scale of a desired road map, and by simply speaking the words, the road map displayed on the display monitor 16 is displayed in the desired map display format and scale. Can be switched to. Therefore, it is possible to easily display a map display format and a scale road map according to preference. Further, by specifying various map display formats and scales using various words, it is possible to easily display a map display format and a scale road map corresponding to various situations.

(2) When a changeover switch that simultaneously switches between the map display format and the scale is displayed on the monitor screen, since there are many combinations of the map display format and the scale, many changeover switches must be displayed. This makes it difficult to see the road map. On the other hand, in the embodiment of the present invention, since it is not necessary to display the changeover switch, the road map is easy to see.

(3) Words for switching between map display format and scale can be freely input. Therefore, when a destination name is issued, it can be switched to a map display format and a scale road map suitable for moving to the destination, and when a driving purpose is issued, the purpose of the driving is changed. It is possible to switch to a suitable map display format and scale road map, and convenience is improved.

The navigation apparatus 1 of the above embodiment can be modified as follows.
(1) Although the scale of the road map stored in the map switching data 20 or displayed on the display monitor 16 is specified according to the distance between grid lines, the present invention is not limited to the embodiment as long as the scale of the road map is specified. . For example, the scale of the road map may be specified by a scale rate or a distance corresponding to the width of the road map displayed on the display monitor 16.

(2) The map display format candidates 41 are not limited to “bird's-eye view map”, “planar map with north up”, and “planar map with vehicle traveling direction up”. For example, a “three-dimensional bird's-eye view map”, a “driver's view” that is a map display format from the driver's viewpoint, and the like may be displayed as the map display format candidate 41.

(3) When the occupant speaks a word, the road map displayed on the display monitor 16 is switched to a map display format and a scaled road map 80 corresponding to the word, but the word is displayed as shown in FIG. The map display format and scale road map 80 corresponding to the above may be displayed on a two-divided screen together with the road map 70 before switching.

(4) When a word specifying the map display format and the scale is issued toward the microphone 19, the full screen is switched to the map display format specified by the word and the road map 80 of the scale, as shown in FIG. Further, the map display format and scale road map 80 corresponding to the words may be displayed on a two-divided screen together with the road map 70 before switching.

(5) The words specifying the map display format and scale stored in the map display switching data 20 are input by the input device 18, but may be input by voice using the microphone 19.

(6) The word specifying the map display format and scale stored in the map display switching data 20 is not limited to one word such as “drive” or “street”. For example, a combination of a plurality of words may be used.

  The present invention relates to a navigation device for displaying a road map on a display monitor, a word storage means for storing words specifying a map display format and a scale of the road map, a word input means for inputting words uttered by an occupant, and a word input When the words entered by the means are determined to be the same as any of the words stored in the word storage means, and when the words are judged to be the same by the word judgment means, they are displayed on the display monitor. The first road map is switched to the map display format and scaled second road map specified by the words determined to be the same, or the first road map is determined to be the same as the first road map displayed on the display monitor. As long as it has a configuration including a map display format specified by words and a road map display control means for displaying a second road map of a reduced scale on a two-divided screen, the above description will be given. Not limited to any the embodiments.

The correspondence between the elements of the claims and the embodiments will be described.
The word storage means of the present invention corresponds to the data storage unit 111, and the word input means corresponds to the microphone 19. The word determination unit corresponds to the control circuit 11, the voice recognition unit 110, and the data storage unit 111, and the road map display control unit corresponds to the control circuit 11. The specific input means corresponds to the input device 18. In addition, the above description is an example to the last, and when interpreting invention, it is not limited to the correspondence of the component of said embodiment and the component of this invention at all.

It is a block diagram which shows the structure of the navigation apparatus of embodiment of this invention. It is a figure for demonstrating map display switching data. It is a figure for demonstrating a word input screen. It is a figure for demonstrating a map display format selection screen. It is a figure for demonstrating a map scale selection screen. It is a figure for demonstrating an input confirmation screen. It is a figure for demonstrating the road map before uttering the word which specifies the map display format and scale of a road map. It is a figure for demonstrating the road map after uttering the word which specifies the map display format and scale of a road map. It is a flowchart for demonstrating a road map display switching process. It is a figure for demonstrating the road map switched on the divided screen.

Explanation of symbols

1 Navigation device 11 Control circuit 12 ROM
13 RAM
14 Current location detection device 16 Display monitor 17 Speaker 18 Input device 19 Microphone 19a PTT switch 110 Voice recognition unit 111 Data storage unit 113 DVD-ROM
20 Map display switching data 30 Word input screen 31 Word display field 32 Return mark 33 Next mark 34 Cancel mark 40 Map display format selection screen 3
40 Intersection voice guidance setting screen 41 Map display format candidate 50 Map scale selection screen 51 Grid line distance candidate 60 Input confirmation screen 61 Input result 62 NO mark 63 YES mark 70, 80 Road map 71, 81 Own vehicle position marks 72a-72d 73a, 73b,
82a-82g, 83a-83d Grid line 74, 84 Mark between grid lines

Claims (5)

In a navigation device that displays a road map on a display monitor,
Word storage means for storing words specifying the map display format and scale of the road map;
A word input means for inputting words from the occupant;
Word determination means for determining whether the word input by the word input means is the same as any of the words stored in the word storage means;
A second road map of a map display format and a scale that specifies the first road map displayed on the display monitor when the words are determined to be the same by the word determination means. And a road map display control means for switching to the navigation device. In a navigation device that displays a road map on a display monitor,
Word storage means for storing words specifying the map display format and scale of the road map;
A word input means for inputting words from the occupant;
Word determination means for determining whether the word input by the word input means is the same as any of the words stored in the word storage means;
When determined to be the same by the word determination means, the first road map displayed on the display monitor, and the second road map of the map display format and scale specified by the words determined to be the same And a road map display control means for displaying a two-divided screen. The navigation device according to claim 1 or 2,
2. The navigation apparatus according to claim 1, wherein the map display format is a bird's eye view map or a planar map display format. The navigation device according to any one of claims 1 to 3,
The navigation device according to claim 1, wherein a word specifying a map display format and a scale of the road map is one word or a combination of a plurality of words. The navigation device according to any one of claims 1 to 4,
A navigation apparatus, comprising: a specific input means for inputting a word for specifying the map display format and scale stored by the word storage means in characters or voice.

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