JP3377100B2 - Navigation device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile navigation system, and more particularly, to information relating to a specific facility near a current position and capable of storing, displaying and outputting the information. The present invention relates to an in-vehicle navigation device. 2. Description of the Related Art Conventionally, there has been a so-called self-contained navigation device as a positioning device for various moving objects such as an automobile, an aircraft and a ship. This self-contained navigation device obtains a two-dimensional displacement (vector quantity) of a moving object from direction data from a direction sensor and speed data from a speed sensor, and integrates the two-dimensional displacement with a reference point to obtain a current position. Is what you want. That is, in the case of an automobile, for example, the number of pulses generated during one rotation of the drive shaft is preset, and the distance calculated from the total number of pulses generated from the reference point to the current position is multiplied by a distance correction coefficient. The mileage was required. Further, a GPS (Global Positioning System) type navigation device has been developed as a positioning device using an artificial satellite. This GPS navigation device usually receives radio waves from three or more GPS satellites,
The present position of the receiving point is calculated from the pseudo distance data including the time offset of the receiver between each GPS satellite and the receiving point, and the position data of each GPS satellite, and the map data including the calculated current position is calculated. The information processing device is configured to read out the map data from the map data storage device, fetch the data, create screen data from the fetched map data and the information on the current position, and send the screen data to the display device to display an image. This image allows the user, such as an automobile driver, to grasp his / her current position in association with the map. Further, among conventional navigation devices of this type, there has been developed a navigation device capable of displaying various service facilities such as a restaurant and a gas station in the vicinity of the current position by a pictorial symbol or the like according to a user's command. [0004] However, the original purpose of the above-mentioned conventional navigation device is to inform a user of a current position and a target position while driving a car or the like so as to provide a driving convenience. The navigation device is mainly used while the user is driving a car or the like. Therefore, the navigation device must not hinder the driving of the user. However, information of service facilities such as restaurants in the conventional apparatus is displayed on the screen of the image display apparatus, and moreover, there is usually a plurality of such information. When the user wants to stop at a restaurant or the like near the current position of the own vehicle, the user selects a desired one from information of individual characteristics and contents of the plurality of restaurants. If the information is displayed in detail, the user must read the information on the screen of the image display device, and there is a driving concern. On the other hand, there is a problem that if only an amount of information that does not hinder driving is displayed, it is not possible to transmit effective information sufficient for selecting a restaurant or the like to the user. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has no safety problems even during the operation of a moving body, and sufficiently provides necessary information such as specific facilities to a user. It is an object of the present invention to provide a navigation device capable of transmitting information. [0006] In order to solve the above-mentioned problems, a navigation device according to a first aspect of the present invention stores positioning means for measuring a current position of a moving body and outputting the same as current position information, and stores map information. Map information storage means, facility information storage means for storing facility information related to facilities in the map information, input means for inputting an external operation command, and sound output means for sound output of the facility information. And displaying the map information read from the map information storage means on a display means, and displaying mark information serving as a mark of the facility at a position of the map information on the display means where the facility is present. A mark for displaying the mark information corresponding to the facility selected by the operation command so as to be distinguishable from the unselected mark information in accordance with the operation command. Displaying the information so as to move on the information, and outputting the facility information on the selected facility to the sound output means while the map information, the landmark information, and the mark are displayed on the display means. It is characterized by. According to the first aspect of the present invention , the landmark information is displayed at the location of the facility in the map information, and the selection is made.
The presence or absence of selection can be distinguished by the mark moving on the map information.
In addition, since the facility information relating to the selected facility is output by sound , there is no problem even during driving or the like, and information having sufficient quantity and quality can be transmitted to the user. Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing a basic configuration when the present invention is applied to an in-vehicle navigation system. This car navigation system 100
Is a terrestrial magnetism sensor 1 that outputs azimuth data of the traveling direction of the own vehicle, an angular velocity sensor 2 that detects the angular velocity of the own vehicle when rotating, and outputs angular velocity data, and detects and integrates the rotational speed of the shaft. A traveling distance sensor 3 for outputting distance data, a GPS receiver 4 for receiving radio waves from GPS satellites and outputting GPS positioning data,
A system controller 5 for controlling the entire navigation system based on angular velocity data, mileage data and GPS positioning data, an input device 11 for inputting various data, and a CD-ROM disk DK under the control of the system controller 5 CD-ROM (Compact Disk-Read Only Memory) that reads and outputs various data from
A) a drive unit, a display unit 13 for displaying various display data under the control of the system controller 5, and a sound reproducing unit 18 for reproducing and outputting various audio data under the control of the system controller 5. I have. The system controller 5 includes an interface section 6 for performing an interface operation with the outside, a CPU 7 for controlling the entire system controller 5, a ROM (Read Only Memory) 8 storing a control program for controlling the system controller, R that has a non-volatile memory unit (not shown) and stores various data in a writable manner
An input device 11, a CD-ROM drive 12, a display unit 13, and a sound reproducing unit 18;
Connected through. The display unit 13 is a graphic controller 1 for controlling the entire display unit based on control data from the CPU 7 transmitted via the bus line 10.
4, a buffer memory 15 comprising a memory such as a VRAM (Video RAM) for temporarily storing image information that can be displayed immediately, a liquid crystal display device based on image data output from the graphic controller 14, and a CRT (Cathod).
e Ray Tube) and a display control unit 16 for controlling the display of a display 17. The sound reproducing unit 18 includes a D / A converter 19 for performing digital / analog conversion of audio digital data transmitted from the CD-ROM drive 12 or the RAM 9 via the bus line 10, and a D / A converter 1
2 for amplifying the acoustic analog signal output from
0, and a speaker 21 that converts the amplified acoustic analog signal into acoustic vibration and outputs it. In this case, the geomagnetic sensor 1, the angular velocity sensor 2, the mileage sensor 3, and the GPS receiver 4 constitute a positioning means. The system controller 5 corresponds to a control unit, and the input device 11 corresponds to an input unit. C
D-ROM disk DK and CD-ROM drive 12
Also serves as map information recording means and facility information recording means. The display unit 13 corresponds to an image display unit,
The sound reproduction unit 18 corresponds to sound output means. Here, referring to FIG. 2 to FIG.
The data structure in the ROM disk DK will be described.
In the CD-ROM disk DK, a map management table 50 for managing map data for display and a service guide mark different for each service content of each specific facility displayed on the map screen are stored as external character codes for each classification. Guide mark external character code data 51 and kanji font data 5 for storing fonts of various display characters (including external characters)
2 and map display unit data 53A, 53B, 53C, which are blocks of various data for map display, based on the contents of the map management table 50. Here, the service content is a service provided in the specific facility, and differs for each facility such as a Japanese restaurant, a Western restaurant, a hotel, a movie theater, a leisure land, and the like. The leaf management table 50 is a reference leaf management piece 50A for managing map data of a small scale, that is, a narrow area.
, A middle figure leaf management piece 50B that manages map data of a medium scale, that is, a middle area, and a top figure leaf management piece 50C that manages map data of a large scale, that is, a wide area. Furthermore, the reference diagram leaf management piece 50A
, 53A correspond to the plurality of map display units 53B,..., 53B correspond to the middle figure leaf management piece 50B, and the plurality of map displays correspond to the top figure leaf management piece 50C. Unit 53C, ..., 5
3C is compatible. Thereby, the CPU 7 refers to a plurality of map display units as needed based on the management pieces 50A, 50B, 50C, transfers various data to the RAM 9 and the buffer memory 15, and performs various displays such as a map screen display. FIG. 3 shows the structure of 53A as an example of the data structure in the map display unit data.
B and 53C have the same configuration. As shown in FIG. 3, each map display unit data 53A includes palette data 60 as color data for performing map display in color, and image data 61 which is an image of a map screen.
And character code data 62 to be displayed on the map screen,
A service link data group 63 which is an address table indicating a storage address of the service information on the CD-ROM disk DK in order to provide service information indicating service contents provided by each service facility which is a specific facility. Is stored. The service link data group 63 includes service type code data 65 different for each provided service such as leisure facilities, accommodation facilities, restaurants, etc., position data 66 indicating the location of each facility, and name data 67 for each facility.
A detailed data pointer 68 which is an address table indicating the storage address of the service detailed data of each facility on the CD-ROM disk DK; and an address table indicating the storage address of the description audio data of each facility on the CD-ROM disk DK. And a description audio data pointer 69. The CD-data indicated by the detailed data pointer 68
At the storage address on the ROM disk DK, service detailed data 80 for each facility as shown in FIG. 4 is stored. The service detailed data 80 includes pallet data 81 as color data constituting the photograph data of each facility, and photograph image data 82 constituting the photograph data.
And overwrite character data 83 corresponding to characters (for example, facility names) to be overwritten on the display screen of the display 17.
And a CD-ROM disk D in which description audio data 85 for explaining the facility by voice or sound is stored.
A detailed audio data pointer 84 indicating an address on K;
It is provided with. Here, the photographic image data is image data such as an exterior photograph of each facility, an interior photograph of the interior, and a recommended menu photograph of a restaurant or the like. Next, FIG. 5 shows the input device 1 in this embodiment.
1 shows an example of the appearance of a portion 1 and a display unit 13. As shown in FIG. 5, the input device 11 has a key switch K ₁ ~K _15. Here, M _{1 to} M ₄ are menu displays showing a selection menu of service guide marks which are facility information on this screen, M ₁ is a restaurant, M ₂ is a hotel, M ₃ is a movie theater, a theater, and M ₄ is other. Shows the facility information. The display unit 13 is a display 17
have. The operation of the on-vehicle navigation system according to the present embodiment will be described below with reference to FIGS. The system controller 5 controls the azimuth data, angular velocity data, mileage data and GP
When the S positioning data is input, the current position data is calculated based on a program stored in the ROM 8.
In this case, when the positioning accuracy of the GPS positioning data is high, the GPS positioning data is not corrected and the GPS positioning data is used as the current position data. When the positioning accuracy of the GPS positioning data is low, the azimuth data and the angular velocity are used. The current position data is obtained from the azimuth data, the angular velocity data, the mileage data, or the like without correcting the GPS positioning data using data, mileage data, or the like, or without using the GPS positioning data. After calculating the current position data, the system controller 5 drives the CD-ROM drive 12 and
Various necessary data is transferred from the CD-ROM disk DK to the RAM 9 via the bus line 10. Further CD-
The ROM drive 12 is driven, and the CD-ROM disk D
The necessary map data is transferred from K to the buffer memory 15. More specifically, the system controller 5 searches the map display unit data 53 corresponding to the current position data, for example, 53A, and stores the map data necessary for display on a CD-ROM.
It is determined at which address on the ROM disk DK is recorded, and the map data is transferred to the buffer memory 1 via the bus line 10 and the graphic controller 14.
Transfer to 5. Subsequently, the CPU 7 performs map matching between the current position data and the map data, and
The display data is created by overwriting the data indicating the current position on the map data of No. 5. In this case, a map matching method is performed by, for example, storing the upper left and lower right longitude and latitude of a rectangular area represented by map data. Next, the graphic controller 14
Display data is sequentially read from the buffer memory 15 in accordance with the drawing timing, and is displayed on the display 17 via the display control device 16. [0025] In this case, if you want to find a restaurant in the vicinity of the current position, the user presses a key switch K ₆ in Figure 5. Figure 6 is a diagram showing an example of a screen of the display 17 when the user presses the key switch K _6. Thick black arrows on the figure indicate the current position and traveling direction of the own vehicle. Also,
The “Japanese” mark indicates the position of the Japanese restaurant, and the “West” mark is mark image information indicating the position of the Western restaurant. M ₅ ~
M ₉ is a pictorial symbol indicating the function menu corresponding to the key switch K ₅ ~K ₉ in the case of this screen, M _5, the key switch K ₅ is "pointing" in the diagram for each pressed once mark Shows a return operation of moving from the position of the mark of one restaurant to the position of the mark of another restaurant.
When the key switch K ₆ is pressed, M ₆ displays related information relating to the contents of the restaurant, such as the restaurant name, recommended dishes, price examples, characteristics, etc. of the Western restaurant indicated by the “pointing” mark on the screen at this time or A voice operation in which related acoustic information is described using sound such as voice or music is shown. In this case, the key switch K after pressing the key switch K ₅ is when you want to listen to the information of the other restaurants on the way
Just press ₆ . [0026] In this case, by pressing the key switch K _7, as shown in FIGS. 7 and 8, such as a photograph of the "pointing" on the screen at the time mark is pointing in appearance photos of and Western restaurants are recommended dishes photo operation is performed, which are sequentially displayed on the screen each time you press the key switch K _7. Further, when the key switch K ₈ is pressed, FIG.
As shown in (1), particularly important information among related information such as the name of the restaurant can be displayed as explanatory character information in the vicinity of the landmarks of all restaurants displayed on the screen at this time. If in this way, because it is not necessary to press the key switch K ₆ again again such as when Kikimorashi name of the shop or the like. The key switch K ₉ is a key for terminating the display of the restaurant and returning to the initial display shown in FIG. The control operation of the system controller in the above case will be described below. First, the system controller 5 displays an initial menu on the display 17 based on the service link data group 63. Next, when the key switch K ₆ is pressed on the screen of FIG. 5, the system controller 5 drives the CD-ROM drive 12 and transfers necessary service information data from the CD-ROM disk DK to the buffer memory 15. More specifically, the system controller 5 searches the map display unit data 53A corresponding to the current position data, refers to the detailed data pointer 68, and stores the restaurant data, which is the service detailed data 80 required for display, on the CD-ROM. It is determined at which address on the ROM disk DK it is recorded, and the restaurant data is transferred to the buffer memory 15 via the bus line 10 and the graphic controller 14. Next, the graphic controller 14 sequentially reads out display data from the buffer memory 15 in accordance with the drawing timing, and displays the data on the display 17 via the display control device 16. Next, when the key switch K ₆ is pressed in FIG. 6, the system controller 5 sets the service detailed data 80 stored in the buffer memory 15.
, It is determined by referring to the detailed sound data pointer 84 which address of the CD-ROM disk DK the explanatory sound data 85 necessary for sound output is recorded.
The explanation audio data 85 is transmitted to the D /
The signal is sent to an A-converter 19, amplified by an amplifier 20, and output as sound by a speaker 21. On the other hand, when the key switch K ₇ in FIG. 6 is pressed, the system controller 5 reads necessary data from the pallet data 81 and the photographic image data 82 in the buffer memory 15 in the same manner. The image data is transferred to the buffer memory 15 via the bus line 10 and the graphic controller 14, and then read from the buffer memory in accordance with the drawing timing and displayed on the display 17 via the display control device 16. On the other hand, when the key switch K ₈ in FIG. 6 is pressed, the system controller 5 similarly stores the overwritten character data 8 in the buffer memory 15.
3 is read out from the buffer memory 15 via the bus line 10 and the graphic controller 14 and transferred to the buffer memory 15 via the graphic controller 14. Then, the graphic controller 14 reads out the data from the buffer memory in accordance with the drawing timing on the display 17 via the display control device 16. To be displayed. In the above-described embodiment, an example is shown in which the mark of the service facility or the like as the mark image information is displayed on the screen displaying the current position of the own vehicle. the key switch K ₁₄ and K ₁₅ as a switch for scrolling, the mark display even when scrolling the screen around the current position of the vehicle is displayed, the acoustic output or character display or photographic representation of relevant information You may make it. Furthermore, for example, using a key switch K ₁₀ or the like in FIG. 5, display keywords in landmark information screen to call the screen for the current position screen other than the remote vehicle (e.g. destinations travel) of place names such as Then, sound output, character display, or photograph display of the related information may be performed. The related information may be displayed alone (for example, only photographic data). In the above embodiments, the voice operation is described the example that is performed when the key switch K ₅ is depressed key switch K ₆ after pressed, which may be shared by one key switch. In addition, the character display of restaurant-related information by the key switch K ₇ may be all be a part of the relevant information. The character explanation data may be overwritten not only on the map image but also on the photographic image. As described above, according to the present invention,
There is an advantage that there is no safety problem even during the operation of the moving body, and that necessary information such as specific facilities can be sufficiently transmitted to the user.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration of one embodiment of the present invention. FIG. 2 is a diagram (1) for explaining a data storage situation in a CD-ROM disc; FIG. 3 is a diagram (2) for explaining a data storage situation in a CD-ROM disc; FIG. 4 is a diagram (3) for explaining a data storage state in a CD-ROM disc; FIG. 5 is a diagram illustrating an example of an appearance of an input device and a display unit according to an embodiment of the present invention. FIG. 6 is a diagram (1) illustrating a display state according to an embodiment of the present invention. FIG. 7 is a diagram (2) illustrating a display state according to an embodiment of the present invention. FIG. 8 is a diagram (3) illustrating a display state according to the embodiment of the present invention. FIG. 9 is a diagram (4) illustrating a display state according to the embodiment of the present invention. [Description of Signs] 1 ... geomagnetic sensor 2 ... angular velocity sensor 3 ... traveling distance sensor 4 ... GPS receiver 5 ... system controller 6 ... interface unit 7 ... CPU 8 ... ROM 9 ... RAM 10 ... bus line 11 ... input device 12 ... CD -ROM drive 13 display unit 14 graphic controller 15 buffer memory 16 display control unit 17 display 18 sound reproducing unit 19 D / A converter 20 amplifier 21 speaker 50 speaker management table 50A reference diagram Leaf management piece 50B ... middle figure leaf management piece 50C ... top figure leaf management piece 51 ... guide mark external character code group 52 ... kanji font data 53A, 53B, 53C ... map display unit data 60 ... palette data 61 ... image data 62 ... characters Code data 63 etc. Screw link data group 65 service type code data 66 position data 67 name data 68 detailed data pointer 69 description voice data pointer 80 service detailed data 81 palette data 82 photograph image data 83 overwrite character data 84 detailed voice data pointer 85 ... explanation voice data 100 ... vehicle navigation system DK ... CD-ROM disk K ₁ ~K ₁₅ ... key switch M ₁ ~M ₉ ... menu display

Continuation of the front page (72) Inventor Kenichi Nobe 25-1, Nishimachi, Yamada, Kawagoe-shi, Saitama Prefecture Pioneer Corporation Kawagoe Factory (56) References JP-A-4-123087 (JP, A) JP-A-2-210215 (JP, A) JP-A 64-16917 (JP, A) JP-A-4-112280 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01C 21/00 G08B 1 / 00 G09B 29/00

Claims (1)

(57) [Claims] [Claim 1] Positioning means for measuring the current position of a moving object and outputting it as current position information, map information storage means for storing map information, and facilities in the map information Facility information storage means for storing facility information; input means for inputting an external operation command; and sound output means for acoustically outputting the facility information. The map information read from the map information storage means is displayed on the display means, the mark further said marker information as a mark facility is displayed on the property is present position of said map information on the display means, further corresponding to the operation facility selected by the command A mark for displaying information so as to be distinguishable from unselected landmark information is displayed so as to move on the map information according to the operation command, and the map information is displayed on the display means. While viewing the said indicia and said landmark information, a navigation apparatus for causing output facility information about the selected facility to said sound output means.