JP3496505B2 - Navigation apparatus and recording medium recording navigation program incorporated therein - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device and a navigation program incorporated in the navigation device for displaying maps at different points on a display device installed at a plurality of positions of a driver's seat, a passenger seat and a rear seat of a vehicle. The present invention relates to a recording medium on which is recorded.

[0002]

2. Description of the Related Art Conventionally, a map is displayed on each of front and rear seats of a vehicle, a driver's seat, a front passenger's seat and a rear seat, and a map display is provided so that operation can be performed according to the display state. Japanese Patent Laid-Open No. 9-8
The one described in Japanese Patent No. 9582 is known.

In this conventional navigation device, a passenger other than the driver operates the navigation device by switching a display device and an operating device (hereinafter, these are collectively referred to as an input / output device) by a selector.
The navigation information associated therewith can be viewed individually.

[0004]

However, in such a conventional navigation device, when operated by any one of the plurality of input / output devices, the navigation information reflecting the operation is the same for all the display devices. Since the configuration is displayed, for example, when the passenger uses the passenger input / output device to input an operation such as destination input while the vehicle is traveling, it is included in the driver input / output device. As for the display of the display device, a display image for inputting a destination for fellow passengers is displayed, and there is a problem that the map display in the vicinity of the present location required for the driver cannot be performed.

The present invention has been made in view of such conventional problems, and a plurality of displays are provided so that a map display of the vicinity of the present location can be continuously displayed on a display device for a driver even when an operation is input by a passenger. An object of the present invention is to provide a navigation device capable of displaying a map of different points on the device and a recording medium having a navigation program incorporated therein.

[0006]

According to a first aspect of the present invention, there is provided a navigation device, a map database holding map data, a vehicle position measuring means for measuring a vehicle position, a driver display device, and a driver. Operation input means, fellow passenger display device, fellow passenger operation input means, and driver for holding map drawing data for displaying the own vehicle position map or the designated position map on the driver display device A display memory, a fellow passenger display memory that holds map drawing data for displaying the own vehicle position map or the designated position map on the fellow passenger display device, and map drawing data in a predetermined range around the own vehicle position. Own vehicle position map drawing memory and the driver table
The vehicle position is displayed on the display device and the passenger display device.
The driver's operation input means and the passenger's operation
The display operation at the specified position is
Driver operating mode and passenger operating mode
Corresponding to the display mode deciding means to be one of the modes and the own vehicle position measured by the own vehicle position measuring means, necessary map data is read from the map database, and map drawing processing is performed to perform the own vehicle position map. Writing to a drawing memory, reading necessary map data from the map database corresponding to the designated position designated by the driver operation input means or the passenger operation input means, and performing map drawing processing to the designated position. The map drawing means for writing in the map drawing memory and the driver operation mode or the front by the display mode determining means.
When the passenger operation mode is set, one of the own vehicle position map drawing data held in the own vehicle position map drawing memory and the designated position map drawing data held in the designated position map drawing memory is In the designated one of the driver display memory and the fellow passenger display memory, the other of the host vehicle position map drawing data and the designated position map drawing data is displayed in the driver display memory and the fellow passenger display. An inter-memory transfer means for transferring to the other designated one of the memories is provided.

In the navigation device according to the first aspect of the present invention, the map drawing means reads necessary map data from the map database corresponding to the position of the own vehicle measured by the own vehicle position measuring means, performs map drawing processing, and performs the own vehicle drawing. Position map drawing memory is read and necessary map data is read from the map database according to the specified position information input from the driver operation input means or the passenger operation input means, and the map drawing process is performed to specify the specified position. Write to map drawing memory.

When there is a command to display the designated position map from either one of the driver's operation input means and the passenger's operation input means, and the other vehicle's position display command is issued, the driver operates. Passenger operation mode and passenger operation mode
One of the vehicle position map drawing data held in the vehicle position map drawing memory and the designated position map drawing data held in the designated position map drawing memory. Is the designated one of the driver display memory and the passenger display memory, and the other of the vehicle position map drawing data and the designated position map drawing data is the driver display memory and the passenger display memory. Transfers to the other specified and holds it. As a result, the designated one of the driver display device and the fellow passenger display device displays the vehicle position map, and the other designated one of the driver display device and the fellow passenger display device is designated position map. Is displayed.

In this way, with one navigation device, the vehicle position map is displayed on either the driver display device or the passenger display device by operating the driver operation input means or the passenger input operation means. However, a designated position map such as a destination map can be displayed on the other side.

According to a second aspect of the present invention, in the navigation device of the first aspect, the vehicle position mark indicating the vehicle position measured by the vehicle position measuring means is further drawn, and the driver display is displayed. One or both of the memory or the display memory for passengers holding the drawing data of the own vehicle position map is overwritten, and the own vehicle position drawing means is provided, and the map drawing means is measured by the own vehicle position measuring means. Corresponding to the position of the own vehicle, the necessary map data is read from the map database, the map drawing processing is performed and the result is written in the memory for drawing the own vehicle position map, by the operation input means for the driver or the operation input means for the fellow passenger. Corresponding to the specified designated position, the necessary map data is read from the map database, the map drawing process is performed, and the map data is written in the specified position map drawing memory, and the table is displayed. The driver steering by the mode determining means
When the operation mode or the fellow passenger operation mode is set, the designated position map drawing process is performed, and the own vehicle position measured by the own vehicle position measuring means is the own vehicle position. The update processing is performed only when the vehicle position map which is previously created and is held in the map drawing memory comes out of the range.

In the navigation device according to the second aspect of the present invention, the map drawing means reads necessary map data corresponding to the own vehicle position measured by the own vehicle position measuring means from the map database, performs map drawing processing, and executes the own vehicle drawing. The map data is written in the position map drawing memory, and the necessary map data corresponding to the specified position specified by the driver operation input means or the passenger operation input means is read from the map database, and the map drawing processing is performed to draw the specified position map. Write to memory. At the same time, either there are display command specified position map from one, and the display mode determining means if there is a display command of the vehicle position map from the other of the passenger's operation input means and the driver's operation input means The driver operation mode or the passenger operation mode
When the vehicle position is set, the drawing processing of the specified position map described above is performed, and the drawing processing of the own vehicle position map described above is stored in the own vehicle position map drawing memory at which the own vehicle position measured by the own vehicle position measuring means. The update process is performed only when the vehicle position map is out of the range of the own vehicle position map created previously.

As a result, the vehicle position map is displayed on either of the driver display device and the passenger display device from the display mode in which the vehicle position map display or the designated position map display is displayed. , On the other hand, if a command to shift to the display mode for displaying the designated position map is input, the display device side that continuously displays the own vehicle position map displays the own vehicle position map every time the own vehicle position changes. Instead of updating, only the vehicle position mark on the original vehicle position map should move while the actual vehicle position is within the display range of the vehicle position map displayed on the display device. The vehicle position map is displayed outside the display range of the vehicle position map currently displayed, and the drawing process of the vehicle position map is updated until a new vehicle position map is displayed. become. As a result, the frequency of drawing processing of the own vehicle position map is reduced, and the drawing processing speed is increased when a plurality of types of maps are individually displayed on a plurality of display devices.

A navigation device according to a third aspect of the invention is
Map database holding map data, own vehicle position measuring means for measuring own vehicle position, driver display device, driver operation input means, fellow passenger display device, fellow passenger operation input means A display memory for a driver that holds map drawing data for displaying the own vehicle position map or the designated position map on the driver display device; and the own vehicle position map or the designated position map on the fellow passenger display device. A display memory for fellow passengers that holds map drawing data for displaying, and a predetermined range around the own vehicle position is wider than the range of the own vehicle position map that can be stored in the driver and fellow passenger display memories. A vehicle position map drawing memory that holds map drawing data of a range, a specified position map drawing memory that holds map drawing data of a predetermined range around a specified position, and the driver display device
And the passenger's position is displayed on the passenger display device and
The driver's operation input means and the passenger's operation input
When the display operation of the designated position is performed in either one of the
The driver operation mode or passenger operation mode
If the display mode determining means for setting the mode and the own vehicle position measured by the own vehicle position measuring means are out of the range of the own vehicle position map previously created and written in the own vehicle position map drawing memory. , Reading the necessary map data from the map database, performing map drawing processing and writing in the vehicle position map drawing memory, and corresponding to the specified position specified by the driver operation input means or the fellow passenger operation input means do it,
Read necessary map data from the map database,
And map drawing means for writing to the specified location map drawing memory and map drawing process, the luck by the display mode determining means
Of the vehicle position map drawing data held in the vehicle position map drawing memory when the transferer operation mode or the passenger operation mode is set , the driver or passenger display The vehicle position map drawing data within a range that can be held in the memory is cut out, and the specified position held in the specified position map drawing memory is stored in a specified one of the driver display memory and the passenger display memory. It is provided with an inter-memory transfer means for transferring map drawing data to the other designated one of the driver display memory and the fellow passenger display memory.

In the navigation device according to the third aspect of the present invention, the own vehicle position map previously created by the map drawing means by the own vehicle position measuring means and written in the own vehicle position map drawing memory is displayed. If it is out of the range, the necessary map data is read from the map database, the map drawing processing is performed, the result is written in the own vehicle position map drawing memory, and it is designated by the driver operation input means or the passenger input operation means. Corresponding to the specified position, necessary map data is read from the map database, map drawing processing is performed, and the map data is written in the specified position map drawing memory.

When there is a command to display the designated position map from one of the driver operation input means and the fellow passenger operation input means, and the other vehicle display command to display the vehicle position map is displayed. The driver operation by the determining means
When the operation mode or the passenger operation mode is set , the inter-memory transfer means holds the vehicle position map drawing data held in the vehicle position map drawing memory in the driver or passenger display memory. Cut the vehicle position map drawing data within the range that can be transferred to the specified one of the driver display memory and the passenger display memory, and also the specified position map drawing data held in the specified position map drawing memory Is transferred to the other designated one of the driver display memory and the fellow passenger display memory and held, and the vehicle position map is displayed on the designated one of the driver display device and the fellow passenger display device. , The designated position map is displayed on the other designated one of the driver display device and the passenger display device.

[0016] Thus, to display the either one vehicle position map of the passenger's display device and the driver's display device, if the other at a specified position migration command that displays the map input,
On the display device side that continuously displays the vehicle position map, instead of repeating the drawing process of the own vehicle position map every time the own vehicle position changes, the own vehicle position map is drawn by one drawing process. While the actual vehicle position exists within a wide range of the vehicle position map stored in the memory, it can be stored in the driver or passenger display memory from the vehicle position map drawing data in the drawing memory. The vehicle position map drawing data in the range is cut out, transferred to the display memory, and displayed on the corresponding display device. Then, when the actual vehicle position comes out of the range of the previously created wide area vehicle position map drawing data, the wide area vehicle position map drawing process is performed again to draw the own vehicle position map. Try to overwrite in memory.

As a result, the necessary map data is read from the map database, the frequency of performing the drawing process of the own vehicle position map using it is reduced, and a plurality of types of maps are displayed individually on a plurality of display devices. The drawing processing speed becomes faster.

According to a fourth aspect of the present invention, in the navigation device according to the first to third aspects of the present invention, a data multiplex transmission means is provided in place of the memory transfer means. The contents of the position map drawing memory are transmitted to and written in the remote driver display memory and the passenger display memory by the data multiplex transmission means, and the own vehicle position map is written in the driver display device and the passenger display device respectively. Alternatively, a designated position map can be displayed.

According to a fifth aspect of the present invention, a recording medium having a navigation program recorded therein reads necessary map data from a map database in accordance with the own vehicle position information input from the own vehicle position measuring means and performs map drawing processing. The vehicle position map drawing memory to read the necessary map data from the map database corresponding to the specified position information input from the driver operation input means or the passenger input operation means, and perform map drawing processing. The specified position map drawing memory, and the driver's operation input means and the passenger's operation input hand
When the display operation of the specified position is performed on either one of the columns
The driver operation mode or passenger operation mode.
And over de, of the passenger operation mode with the driver's operation mode
When one of the modes is entered, one of the vehicle position map drawing data held in the vehicle position map drawing memory and the designated position map drawing data held in the designated position map drawing memory is operated by the driver. Designated one of the display memory for passengers and the display memory for passengers, and the other one of the vehicle position map drawing data and the designated position map drawing data among the driver display memory and the passenger display memory. Transfer to the designated other side, display the vehicle position map on the designated one of the driver display device and the passenger display device, and specify the driver display device and the fellow passenger display device. On the other hand, the navigation program for displaying the designated position map is recorded.

In the recording medium recording the navigation program of the invention of claim 5, the navigation program of the invention of claim 1 is realized by loading the navigation program recorded therein into the program memory of the navigation device.

A recording medium on which the navigation program according to the invention of claim 6 is recorded is mounted on the same medium as the operation input means for a driver.
Display operation of specified position on either one of human operation input means
Driver operation mode and passenger operation mode
In any one of the modes , the necessary map data is read from the map database according to the own vehicle position information input from the own vehicle position measuring means, the map drawing processing is performed, and the own vehicle position map drawing memory is written. Corresponding to the designated position information input from the driver's operation input means or the passenger's operation input means, necessary map data is read from the map database, a map drawing process is performed, and the map data is written in the specified position map drawing memory, and The driver operation mode or the passenger operation mode
When any one of the two modes is executed, the designated position map drawing process is performed, and the own vehicle position map drawing process is performed in the previous time when the own vehicle position information is stored in the own vehicle position map drawing memory. Update processing is performed only when it comes out of the range of the created vehicle position map, and the driver operation is performed.
Mode and passenger operation mode, the vehicle position map drawing data held in the vehicle position map drawing memory and the designated position map drawing held in the designated position map drawing memory One of the data is designated as one of the driver display memory and the passenger display memory, and the other of the own vehicle position map drawing data and the designated position map drawing data is used as the driver display memory and the designated position map drawing data. It is transferred to the other designated one of the passenger display memories, the own vehicle position mark showing the own vehicle position information is drawn, and the own vehicle position map of the driver display memory or the fellow passenger display memory is displayed. The drawing data is overwritten on the one holding it, the vehicle position map is displayed on the designated one of the driver display device and the passenger display device, and the driver display device and passenger table are displayed. The navigation program for displaying the other to specify a position map that is specified among the devices is a record.

In the recording medium recording the navigation program of the invention of claim 6, the navigation program of the invention of claim 2 is realized by loading the navigation program recorded therein into the program memory of the navigation device.

A recording medium on which the navigation program according to the invention of claim 7 is recorded is mounted on the same medium as the driver operation input means.
Display operation of specified position on either one of human operation input means
Driver operation mode and passenger operation mode
If any of the above modes is set and the vehicle position information from the vehicle position measuring means is out of the range of the vehicle position map previously created and written in the vehicle position map drawing memory, the necessary map The data is read from the map database, the map drawing processing is performed, and the vehicle position map drawing memory is overwritten, and the necessary position information corresponding to the specified position information from the driver operation input means or the passenger operation input means is obtained. The map data is read from the map database, the map drawing process is performed, and the map data is written in the specified position map drawing memory, and the driver operation mode or the same
Of the vehicle position map drawing data held in the vehicle position map drawing memory when the passenger operation mode is set ,
The vehicle position map drawing data within a limited range that can be held in the driver or passenger display memory is cut off, and the specified position is displayed in the specified one of the driver display memory and the passenger display memory. The designated position map drawing data held in the map drawing memory is transferred to the other designated one of the driver display memory and the fellow passenger display memory, and designated between the driver display device and the fellow passenger display device. The navigation program for displaying the own vehicle position map on one of the displayed ones and the designated position map on the other specified one of the driver display device and the passenger display device is recorded.

In the recording medium recording the navigation program of the invention of claim 7, the navigation program of the invention of claim 3 is realized by loading the navigation program recorded therein into the program memory of the navigation device.

[0025]

According to the first aspect of the present invention, in one navigation device, the driver display device and the passenger display device can be operated by operating the driver operation input means or the passenger input operation means. The vehicle position map can be displayed on either one of them, and the designated position map such as the destination map can be displayed on the other of them.

According to the invention of claim 2, when the vehicle position map is displayed on one of the driver display device and the passenger display device and the designated position map is displayed on the other, the vehicle position is displayed. The display device side that displays the map does not update the vehicle position map every time the vehicle position changes, but the actual vehicle position is within the display range of the vehicle position map displayed on the display device. While it exists, it is displayed on the original vehicle position map so that only the vehicle position mark moves, and the vehicle position is outside the display range of the currently displayed vehicle position map. The vehicle position map drawing process is updated to display a new vehicle position map, the frequency of the vehicle position map drawing process is reduced, and multiple types of maps are individually displayed on multiple display devices. The drawing processing speed in the case of making it possible can be increased.

According to the third aspect of the invention, when the vehicle position map is displayed on one of the driver display device and the passenger display device and the designated position map is displayed on the other, the vehicle position is displayed. On the side of the display device that displays the map, instead of repeating the drawing process of the own vehicle position map every time the own vehicle position changes, it is created in a single drawing process and held in the own vehicle position map drawing memory. While the actual vehicle position exists within a wide area of the vehicle position map, the vehicle position map within the range that can be stored in the driver or passenger display memory from the vehicle position map drawing data in the drawing memory The drawing data is cut and transferred to the display memory, displayed on the corresponding display device, and when the actual vehicle position comes out of the range of the vehicle position map drawing data of the wide range created last time, again. , Drawing a wide range of vehicle position maps Since it is processed and overwritten in the vehicle position map drawing memory, the necessary map data is read from the map database, the frequency of drawing the vehicle position map using it is reduced, and multiple types of maps can be It is possible to increase the drawing processing speed when individually displaying on the display device.

According to the invention of claim 4, the contents of the vehicle position map drawing memory and the designated position map drawing memory are transmitted to the remote driver display memory and the passenger display memory by the data multiplex transmission means. The vehicle position map or the designated position map can be displayed on each of the driver display device and the passenger display device.

According to the invention of claim 5, the navigation device of the invention of claim 1 can be realized by loading the recorded navigation program into the program memory of the navigation device.

According to the invention of claim 6, the navigation device of the invention of claim 2 can be realized by loading the recorded navigation program into the program memory of the navigation device.

According to the invention of claim 7, the navigation device of the invention of claim 3 can be realized by loading the recorded navigation program into the program memory of the navigation device.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a navigation device according to one embodiment of the present invention. The navigation device of this embodiment is a microcomputer including a driver display device 1, a driver operation input device 2, a passenger display device 3, a passenger input device 4, and a high-speed and high-performance MPU. A control device 5 configured to execute arithmetic control processing for various navigation functions, a map database 6 realized by a mass storage recording medium, for example, a CD-ROM, a DVD-ROM drive device, etc., a GPS
It consists of a gyro sensor and a mileage measuring device,
A vehicle position measuring device 7 for automatically measuring the vehicle position is provided.

The control device 5 operates various navigation functions by executing a registered program. When the functional configuration is divided into blocks, the following functional elements are provided. A map data reading memory 501 that temporarily stores map data read from the map database 6, and a vehicle position determining unit 5 that determines the vehicle position based on a signal from the vehicle position measuring device 7.
02, a map centered on a position determined by the operation processing display position determining unit 503, the own vehicle position determining unit 502, or the operation processing display position determining unit 503 that determines the display position based on the input from the operation input device 2 or 4. Map drawing unit 504 for drawing the map data from the map data stored in the map data reading memory 501, and the vehicle position for displaying the vehicle position as a current position mark at the corresponding position on the map to be displayed on the display devices 1 and 3. A vehicle position map drawing memory 506 that stores map drawing information around the vehicle position created by the drawing unit 505 and the map drawing unit 503, and is specified by an input operation of the driver or fellow passenger created by the map drawing unit 503. Designated position map drawing memory 507 for storing map drawing information corresponding to a specific point, and drawing information to be displayed on the display device 1 in the driver's seat Driver display memory 508, passenger display memory 509 that stores drawing information to be displayed on the passenger display device 3, a recommended route from a designated starting point to a destination, and a map drawing unit The drawing information stored in the recommended route calculation unit 510, the own vehicle position map drawing memory 506 and the designated position map drawing memory 507, which is passed to the driver 504, is displayed to the driver display memory 508 and the passenger display memory 5
Memory transfer unit 51 for transferring to either or both of
1 is provided.

Both the driver operation input device 2 and the passenger operation input device 4 are provided with operation buttons shown in FIG. That is, it is equipped with a main operation button 201, a mode switch 202, a wide area switch 203, and a detailed switch 204, which are a combination of an 8-direction joystick type input device and a push button function. The main operation button 201 is used for scrolling the map and determining the destination, and the mode switch 202 is used for switching the display mode. The wide area switch 203 and the detail switch 204 are used for enlarging and reducing the displayed map.

Next, the operation of the navigation device having the above configuration will be described. The operation of the navigation device by the driver and the passenger is performed by the driver operation input device 2 and the passenger operation input device 4, and is processed by the operation processing display position determination unit 503 of the control device 5.

First, the overall display mode will be described.

(1) Vehicle position display mode In this mode, as shown in FIGS. 3A to 3B, the vehicle position mark Mk is displayed on both the driver display device 1 and the passenger display device 3. Is displayed as a center, and the map Mp side is displayed in a form of scrolling little by little as the vehicle position moves.

Therefore, as shown in the flow chart of FIG. 4, a vehicle position signal such as latitude and longitude measured by the vehicle position measuring device 7 is input, and the vehicle position determining unit 502 of the control device 5 controls the control device. Vehicle position data to be used within 5 is created (step S1).

In the map drawing unit 504, the vehicle position determining unit 5
The map data of a predetermined area around the host vehicle position data from 02 is read from the map data reading memory 501 and a drawing process is performed. At this time, if necessary, map data corresponding to the position of the own vehicle is loaded into the map data reading memory 50.
1 is read from the map database 6 and stored in the map data reading memory 501, and the map data is used. Then, the drawing data created by the map drawing unit 504 is written in the own vehicle position map drawing memory 506 (step S
2).

The contents of the vehicle position map drawing memory 506 are transferred to the driver display memory 508 and the passenger display memory 509 by the inter-memory transfer unit 511 (steps S3 and S4). Further, the own vehicle position drawing unit 505 obtains own vehicle position data from the own vehicle position determination unit 502 and draws the own vehicle position on the driver display memory 508 and the fellow passenger display memory 509. The driver display device 1 displays the contents of the driver display memory 508, and the fellow passenger display device 3 displays the contents of the fellow passenger display memory 509 (step S).
5, S6).

Thereafter, by repeating these processes, as shown in FIGS. 3A to 3B, the vehicle position mark Mk is sequentially displayed on the driver display device 1 and the passenger display device 3, respectively. The map Mp of the peripheral area is always displayed as a center and scrolled little by little.

(2) Passenger operation mode In the vehicle position display mode, the passenger input operation device 4
The mode is switched to this mode by pressing the mode switch 202. In this mode, the display center of the map of the passenger display device 3 is switched from the vehicle position display mode by operating the passenger input device 4, and the joystick function of the main operation button 201 is used to scroll in eight directions. You will be able to operate it. Therefore, if the main operation button 201 is operated to determine the destination, the mode returns to the vehicle position display mode. It is also possible to return to the vehicle position display mode with the mode changeover switch 202.

As shown in the flow charts of FIGS. 5 and 6, the mode changeover switch 20 of the passenger operation input device 4 is selected.
When 2 is pressed, the operation processing display position determination unit 503 sets the own vehicle position obtained from the own vehicle position determination unit 502 as the initial value of the designated position (step S11), and in eight directions according to the scroll operation by the main operation button 201. The designated position is changed (steps S12 and S13).

The map drawing unit 504 reads the map data of a predetermined area centered on the designated position from the map database 6 for the designated position determined by the operation processing display position determination unit 503, and stores it in the map data reading memory 501. Based on this, a map centered on the designated position, that is, a designated position map is drawn, and the designated position map drawing data is written in the designated position map drawing memory 507 (step S14).

Subsequently, the inter-memory transfer section 511 causes the passenger display memory 509 to display the designated position map drawing memory 507.
The specified position map drawing data stored in is transferred,
It is displayed on the passenger display device 3 (steps S15, S
16).

Further, the map drawing section 504 obtains the vehicle position data from the vehicle position determining section 502 (step S17),
If the map data necessary for drawing the map centering on the own vehicle position is stored in the map data reading memory 501, the drawing process of the own vehicle position map is performed using the data and written in the own vehicle position map drawing memory 506. (Steps S18 and S1
9). Then, the inter-memory transfer unit 511 transfers the content of the vehicle position map drawing memory 506 to the driver display memory 508 (step S22), and the vehicle position map is displayed on the driver display device 1 (step S23). ).

On the other hand, in step S18, if the map data read memory 501 does not hold the map data necessary for displaying the own vehicle position map, the own vehicle position held in the own vehicle position map memory 506. Whether or not the own vehicle position exists within the range of the map (step S20), if it exists within the range of the current own vehicle position map, the own vehicle position map memory 506 is not updated and the own vehicle position is drawn. The unit 505 draws a vehicle position mark at a corresponding position within the range of the vehicle position map currently held in the driver display memory 508 (step S22), and displays the vehicle position on the driver display device 1. A map is displayed (step S23).

In step S20, the vehicle position map memory 5
If the own vehicle position does not exist within the range of the own vehicle position map held in 06, the map drawing unit 506 writes new map data corresponding to the own vehicle position via the map data reading memory 501. Read from (step S2
1), using this, draw the vehicle position map,
Write to the vehicle position map drawing memory 506 (step S1
9) Then, the inter-memory transfer unit 511 transfers the contents of the vehicle position map drawing memory 506 to the driver display memory 508 (step S22), and displays the vehicle position map on the driver display device 1 (step S23). ).

In this passenger operation mode, when the passenger operates the passenger input operation device 4 to perform a specified position display operation such as a destination display operation, the specified position is displayed on the passenger display device 3. While displaying a map of a predetermined area centered on the driver display device 1, as shown in FIGS. 3A to 3C, the own vehicle position map in which the own vehicle position is the center of the own vehicle position created last time. When it exists in the area of Mp (the map of FIG. 3A), the map Mp side is left as it is and only the vehicle position mark Mk is moved on the map Mp (FIG. 3).
(A) → (c)). And the vehicle position map M currently displayed
Only when the newly measured vehicle position does not fall within the range of p, a vehicle position map is newly created and displayed on the driver display device 1. In this case, the current position mark Mk
By the time the display position on the screen of the display device 1 is completely out of the range of the displayed map, for example, if it comes within a quarter of the upper end, a new vehicle position map is drawn. You can also do it.

(3) Driver operation mode In the vehicle position display mode, the driver operation input device 2
The mode is switched to this mode by pressing the mode switch 202. In this mode, the display center of the map on the driver display device 1 is switched from the vehicle position display mode by operating the driver operation input device 2, and the joystick function of the main operation button 201 is used to scroll in eight directions. You will be able to operate it. Therefore, if the main operation button 201 is operated to determine the destination, the mode returns to the vehicle position display mode. It is also possible to return to the vehicle position display mode with the mode changeover switch 202.

This driver operation mode is realized by replacing the driver and the passenger in the fellow passenger operation mode (2) and performing the same processing. Therefore, the map display centering on the designated position is performed on the driver display device 1,
The passenger display device 3 displays the images shown in FIGS.

(4) Simultaneous operation mode In the passenger operation mode, switching is performed by pressing the mode changeover switch 201 of the driver operation input device 2.
Further, in the driver operation mode, the passenger operation input device 4
It is switched by pushing the mode changeover switch 201.

In this mode, the driver operation input device 2
The display designated position is scrolled and the map display is updated by any input from the passenger operation input device 4 and the passenger operation input device 4, and the main operation button 201 is operated by either the driver operation input device 2 or the passenger operation input device 4. If you make a decision operation using
The destination is determined and the mode switches to the vehicle position display mode.
In addition, the mode changeover switch 20 is operated by the driver operation input device 2.
When 2 is pressed, the passenger operation mode is set, and when the mode changeover switch 202 is pressed on the passenger operation input device 4, the driver operation mode is set.

The operation in the simultaneous operation mode will be described by taking the case of switching from the fellow passenger display mode as an example. The operation processing display position determination unit 503 switches to the simultaneous operation mode when the mode switch 202 of the driver operation input device 2 is pressed. The map drawing unit 504 reads the map data from the map database 6 with respect to the designated position determined by the operation processing display position determination unit 503, and loads the map data into the memory 501.
And draws a map centered on the specified position in the specified position map drawing memory 507. The designated position map drawing memory 50 is provided in the driver display memory 508 and the passenger display memory 509.
The contents of No. 7 are transferred by the inter-memory transfer unit 511.

The vehicle position drawing unit 505 is the vehicle position determination unit 5
The vehicle position is obtained from No. 02, and if it is within the display range, the vehicle position is drawn in each of the driver display memory 508 and the passenger display memory 509. The contents of the driver display memory 508 are displayed on the driver display device 1, and the contents of the fellow passenger display memory 509 are displayed on the fellow passenger display device 3.

Therefore, in this mode, if either the driver's operation input device 2 or the passenger's operation input device 4 is operated to determine the destination or other designated position and display the designated position map, Both the driver display device 1 and the passenger display device 3 similarly display a designated position map centered on the designated position.

In this way, in the navigation device of the first embodiment, the map database 6 serving as the navigation body and the control device 5 are set as one set, and the drawing memory in the control device 5 is expanded and the control device is also installed. By changing the program in 5, it is possible to display a map of different points on each of the plurality of display devices so that the map display of the vicinity of the current position is continuously displayed on the display device for the driver even when the passenger inputs the operation. .

Next, a navigation device according to a second embodiment of the present invention will be described with reference to FIG. The second embodiment shown in FIG. 7 is different from the first embodiment shown in FIG. 1 in that the controller 5 is newly added to the controller 50, the driver input / output device 51, and the passenger. Data input / output device 52, and instead of the inter-memory transfer unit 511, the data communication units 512 and 513 are provided to the control device 50, the driver input / output device 51, and the passenger input / output device 52, respectively. , 5
The configuration is characterized in that 14 are installed and these are connected by a data multiplex communication line 515.

The controller 50 uses the map data reading memory 5
01, own vehicle position determination unit 502, operation processing display position determination unit 503, map drawing unit 504, own vehicle position drawing unit 505, own vehicle position map drawing memory 506, designated position map drawing memory 507, recommended route calculation unit 510. The data communication unit 512 is provided instead of the inter-memory transfer unit 511.
The map database 6 and the vehicle position measuring device 7 are connected to the control device 50.

The driver input / output device 51 includes a driver display device 1, a driver operation input device 2, and a driver display memory 508 for storing drawing information to be displayed on the driver display device 1. Further, a data communication unit 513 is provided instead of the inter-memory transfer unit 511.

The passenger input / output device 52 includes a passenger display device 3, a passenger operation input device 4, and a passenger display memory 509 for storing drawing information to be displayed on the passenger display device 3. The data communication unit 514 is provided instead of the inter-memory transfer unit 511.

In the navigation device of the second embodiment, as in the first embodiment, (1) own vehicle position display mode, (2) fellow passenger operation mode, (3) simultaneous display mode, ( 4) It is possible to select four driver operation modes, and in each mode, a display mode similar to that of the first embodiment is adopted.

However, the inter-memory transfer processing performed by the inter-memory transfer unit 511, that is, the host vehicle position map drawing data written in the host vehicle position map drawing memory 506 and the designated position map drawing memory 507. In the memory-to-memory transfer process of transferring each of the designated position map drawing data to the driver display memory 508 or the passenger display memory 509, the data communication units 512, 513 and 514 use the data multiplex communication line 5
Via 15.

As a result, especially the passenger input / output device 5
By connecting a plurality of two to the data multiplex communication line 515, the passenger input / output devices 52 are installed in the passenger seat and the rear seat as passengers, and the driver display device 1 is provided on each display device 3. And will be able to display individual map information.

Next, a navigation device according to a third embodiment of the present invention will be described with reference to FIG. The navigation device of the third embodiment is similar to the navigation device of the first embodiment shown in FIG. 1, but has a driver display device 1, a driver operation input device 2, a fellow passenger display device 3, and a fellow passenger device. It is provided with an operation input device 4, a control device 5 composed of a microcomputer incorporating a high-speed and high-performance MPU, a map database 6, and a vehicle position measuring device 7.

The control device 5 then reads the map data memory 501, the vehicle position determining section 502, the operation processing display position determining section 503, the map drawing section 504 ', and the own vehicle position drawing section 50.
5, a vehicle position map drawing memory 506 ', a designated position map drawing memory 507', a driver display memory 508, a fellow passenger display memory 509, a recommended route calculation unit 510, and a memory transfer unit 511 '.

The features of the third embodiment are a map drawing unit 504 ', a vehicle position map drawing memory 506', a designated position map drawing memory 507 ', and an inter-memory transfer unit 511'. The other components are the first components shown in FIGS. 1 and 2.
This embodiment is common to the above embodiment.

The map drawing unit 504 'has a display range determining unit 4
1, a memory moving unit 42, and a drawing processing unit 43. Vehicle position map drawing memory 50
6'and the designated position map drawing memory 507 'have a storage capacity capable of holding map drawing data in a larger area than the driver display memory 508 and the passenger display memory 509, and the map drawing unit 504'. The map image data is written by. The memory-to-memory transfer unit 511 'transfers the contents of the vehicle position map drawing memory 506' or the designated position map drawing memory 507 'to the driver display memory 508 or the passenger display memory 509, respectively, as in the first embodiment. Although the transfer is performed, the transfer processing function is different from that of the first embodiment (this will be described later).

Next, the vehicle position map drawing memory 506 'by the map drawing unit 504' which is a feature of the third embodiment.
The operation of drawing a map in the designated position map drawing memory 507 'will be described with reference to the flowchart of FIG. 9 and the explanatory views of FIGS. Note that this vehicle position map drawing processing replaces the flowchart of the vehicle position display mode of the first embodiment shown in FIG. 4, and also the passenger operation mode shown in FIG. 5 and FIG. It replaces the part after step S17 in the flowchart. Other operations are similar to those of the first embodiment.

FIG. 10A shows a vehicle position map drawing memory 5
The whole Mp1 of the map data stored in 06 'is shown. First, when the host vehicle position (indicated by the host vehicle position mark Mk here) is determined (step S31), the area Mp2 having the size of the driver display memory 508 is centered around the host vehicle position Mk. Is transferred to the display memory 508 by the inter-memory transfer unit 511 '(step S32,
S33), as shown in FIG. 10B, the map image Mp centering on the vehicle position Mk is displayed on the driver display device 1 (step S34).

Then, as the vehicle position moves, the vehicle position map drawing memory 506 'changes to the driver display memory 5
Although the area transferred to 08 also moves, the own vehicle position Mk is the whole Mp of the map data of the own vehicle position map drawing memory 506 '.
As long as it exists in the frame F inside 1, the vehicle position map Mp centering on the vehicle position Mk is always displayed by repeating the above processing.

Here, the frame F inside the whole Mp1 of the map data in FIG. 10A is set to an inner distance in the latitude and longitude directions by half the size a × b of the driver display memory 508. As long as the vehicle position Mk is within the frame F, the map drawing unit 504 'does not need to draw a map in the vehicle position map drawing memory 506'.

While the vehicle position map centering on the vehicle position is continuously displayed, if the vehicle position Mk goes out from the inner frame F of the entire map data Mp1 (step (S31, S32), the map drawing unit 504 'restarts the map drawing process.

At this time, the vehicle position Mk is moved by the display range determination unit 41 in the map drawing unit 504 ', and the vehicle position Mk shown in FIG.
When it is determined that the position such as the point P1 shown in (a) has been reached, the area to be transferred to the driver memory 508 cannot fit in the area Mp1 of the own vehicle position map drawing memory 506 '. Need to be redrawn (branch to NO in step S32). Therefore, the current vehicle position M
It is determined whether k protrudes from the frame F to the upper side, the lower side, or the right side (step S3).
5, S37, S39).

If the protruding direction is the upper side as shown in FIG. 10 (a), the own vehicle position map drawn in the own vehicle position map drawing memory 506 'by the memory moving unit 42 as shown in FIG. 11 (a). The entire display Mp1 of the driver display memory 5
The map screen a × b of 08 is moved downward by the vertical width a (steps S35 and S36), and the map data of the area of the width a opened upward in the drawing memory 506 'is read from the map database 6. The drawing processing unit 43 performs drawing processing and writes it in the vehicle position map drawing memory 506 '(step S42).

Similarly, if the protruding direction is on the lower side, the entire Mp1 of the own vehicle position map drawn in the own vehicle position map drawing memory 506 'is moved upward by the vertical width a (steps S37, S38). In the drawing memory 506 ', the map data of the area of the width a opened downward is read, the drawing process is performed, and the map data is written in the vehicle position map drawing memory 506' (step S42).

If the projecting direction is on the right, the entire vehicle position map Mp1 drawn in the vehicle position map drawing memory 506 'is moved to the left by the width b of the map screen axb (step S39, S40), drawing memory 506 '
The map data of the area corresponding to the width b opened to the right in the figure is read, drawn and written in the vehicle position map drawing memory 506 '(step S42). Further, if the protruding direction is on the left side, the entire Mp1 of the vehicle position map is moved to the left side by the width b (steps S39 and S41), and the drawing memory 5
The map data of the area of b width opened to the left in 06 'is read and drawn, and the vehicle position map drawing memory 506' is read.
(Step S42).

Then, as shown in FIG. 11A, with respect to the whole Mp1 of the own vehicle position map data newly drawn in the own vehicle position map drawing memory 506 ', the own vehicle position Mk at the point P1 is set as the center. Display memory 508 for driver axb
The map of the area Mp2 'of the above is transferred to the driver display memory 508 by the inter-memory transfer unit 511' (step S3).
3), as shown in FIG. 11B, it is displayed on the driver display device 1 as the own vehicle position map Mp (step S3).
4).

In the designated position map drawing processing according to the third embodiment, the designated position determined by the operation processing display position determination unit 503 is replaced with the own vehicle position Mk in the above own vehicle position map drawing processing. Will be used.

In this way, in the navigation device of the third embodiment, as in the first and second embodiments, one operation input device, for example, the passenger input operation device 4 is used for operation. Even if the passenger display device 3 is caused to draw a map while reading map data of different designated points, the other display device, that is, the driver display device 1, displays the own vehicle position centered on the own vehicle position Mk. The map can be always displayed, and the frequency of reading map data from the external storage device, which is generally extremely slow compared to the drawing processing speed of the MPU, can be reduced. In addition, it is possible to reduce the frequency of interrupting the display of the vehicle position map on the other display device.

In the third embodiment, the vehicle position Mk is the entire map data M of the drawing memory 506 '.
The movement widths when protruding from the inner frame F of p1 are a and b
However, the width can be set to other appropriate widths.

In order to save the memory capacity, the designated position map drawing processing function may be the same as that of the first embodiment. That is, the designated position map drawing memory 507 '
Display capacity for drivers and passengers 508, 50
Alternatively, the map may be drawn in a predetermined range centered on the designated position with the same degree as 9.

Further, also in the configuration of the third embodiment described above, the portion of the inter-memory transfer unit 511 'can be replaced with the data multiplex communication system as in the second embodiment.

[Brief description of drawings]

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

FIG. 2 is a plan view of a driver / passenger operation input device according to the above embodiment.

FIG. 3 is an explanatory diagram of a vehicle position map display operation in the above embodiment.

FIG. 4 is a flowchart of a vehicle position display mode in the above embodiment.

FIG. 5 is the first half of the flowchart of the fellow passenger display mode in the above embodiment.

FIG. 6 is the second half of the flowchart of the fellow passenger display mode in the above embodiment.

FIG. 7 is a block diagram showing an overall configuration of a second embodiment of the present invention.

FIG. 8 is a block diagram showing an overall configuration of a third embodiment of the present invention.

FIG. 9 is a flowchart of display processing of the own vehicle position map in the above embodiment.

FIG. 10 is an explanatory diagram of a vehicle position map display operation in the above embodiment.

FIG. 11 is an explanatory diagram of a redrawing operation of the own vehicle position map data by the map drawing unit in the above embodiment.

[Explanation of symbols]

1 Driver display 2 Driver operation input device 3 Passenger display 4 Operation input device for passengers 5 control device 6 map database 7 Own vehicle position measuring device 50 controller 51 I / O device for driver 52 Passenger input / output device 501 map data reading memory 502 Own vehicle position determination unit 503 Operation processing display position determination unit 504, 504 'Map drawing unit 505 Vehicle position drawing unit 506, 506 'Own vehicle position map drawing memory 507,507 'Specified position map drawing memory 508 Display memory for driver 509 Passenger display memory 510 Recommended route calculator 511, 511 'Memory transfer unit 512 data communication unit 513 data communication unit 514 Data communication unit 515 data multiplex communication line

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01C 21/00 G08G 1/0969 G09B 29/00-29/10

Claims (7)

(57) [Claims] 1. A map database holding map data, a vehicle position measuring means for measuring a vehicle position, a driver display device, a driver operation input means, a passenger display device, and a passenger ride. Driver operation input means, a driver display memory that holds map drawing data for displaying the own vehicle position map or the designated position map on the driver display device, and the own vehicle position on the fellow passenger display device A display memory for passengers that holds map drawing data for displaying a map or a specified position map, a vehicle position map drawing memory that holds map drawing data in a predetermined range around the vehicle position, and the driver Own vehicle on the display device and the display device for passengers
When the position is displayed, the driver operation input means
And a specified position on either of the passenger operation input means
Is displayed, the driver operation mode and passenger
Corresponding to the display mode determining means to be any one of the operation modes, and the own vehicle position measured by the own vehicle position measuring means,
Read necessary map data from the map database,
Map drawing processing and writing in the vehicle position map drawing memory, and necessary map data from the map database corresponding to the designated position designated by the driver operation input means or the fellow passenger operation input means. Map drawing means for reading, map drawing processing and writing in the specified position map drawing memory; and the driver operating mode or
Is one of the vehicle position map drawing data held in the vehicle position map drawing memory and the designated position map drawing data held in the designated position map drawing memory when the passenger operation mode is set. One of the display memory for the driver and the display memory for the passenger is designated, and the other of the vehicle position map drawing data and the designated position map drawing data is designated for the driver display memory and the passenger. A navigation device comprising an inter-memory transfer means for transferring to a designated other one of the display memories. 2. The navigation device according to claim 1, further comprising: drawing a vehicle position mark indicating a vehicle position measured by the vehicle position measuring means, and displaying the vehicle position mark for the driver or the passenger. The display memory is provided with own vehicle position drawing means for overwriting one or both of the drawing data of the own vehicle position map, wherein the map drawing means corresponds to the own vehicle position measured by the own vehicle position measuring means. Then, the necessary map data is read from the map database, the map drawing processing is performed, and it is written in the own vehicle position map drawing memory, and the designated position designated by the driver operation input means or the fellow passenger operation input means. in response to writing the necessary map data from the map database reads, to the designated location map drawing memory and map drawing process, and the display mode determining means More the luck
When the transferer operation mode or the passenger operation mode is set, the designated position map drawing process is performed, and the own vehicle position measuring unit measures the own vehicle position map drawing process. A navigation device, wherein update processing is performed only when a vehicle position comes out of a range of a previously created vehicle position map stored in the vehicle position map drawing memory. 3. A map database holding map data, a vehicle position measuring means for measuring the vehicle position, a driver display device, a driver operation input means, a passenger display device, and a passenger ride. Driver operation input means, a driver display memory that holds map drawing data for displaying the own vehicle position map or the designated position map on the driver display device, and the own vehicle position on the fellow passenger display device Display memory for passengers holding map drawing data for displaying a map or specified position map, and vehicle position map that can be stored in the driver and passenger display memory in a predetermined range around the vehicle position The vehicle position map drawing memory that holds the map drawing data in a range wider than the specified range, the specified position map drawing memory that holds the map drawing data in the specified range around the specified position, and the driver display device. And the passenger display device
When the position is displayed, the driver operation input means
And a specified position on either of the passenger operation input means
Is displayed, the driver operation mode and passenger
The display mode determining means for selecting one of the operation modes and the own vehicle position map previously created by the own vehicle position measured by the own vehicle position measuring means and written in the own vehicle position map drawing memory. If it is out of the range, the necessary map data is read from the map database, the map drawing processing is performed, the result is written in the vehicle position map drawing memory, and designated by the driver operation input means or the fellow passenger operation input means. Corresponding to the designated position, the necessary map data is read from the map database, map drawing processing is performed to write the map data in the designated position map drawing memory, and the driver operation mode is performed by the display mode determining means. or
Is the position of the own vehicle within a range that can be held in the driver or passenger display memory among the own vehicle position map drawing data held in the own vehicle position map drawing memory when in the passenger operation mode. The map drawing data is cut off and the designated position map drawing data held in the designated position map drawing memory is displayed on the designated one of the driver display memory and the passenger display memory for the driver display. A navigation device comprising a memory and an inter-memory transfer means for transferring to the other designated one of the passenger display memories. 4. The navigation device according to claim 1, further comprising a data multiplex transmission means in place of the inter-memory transfer means. 5. Corresponding to the own vehicle position information input from the own vehicle position measuring means, necessary map data is read from a map database, map drawing processing is performed, and the result is written in a own vehicle position map drawing memory for a driver. Corresponding to the specified position information input from the operation input means or the passenger input operation means, the necessary map data is read from the map database, the map drawing processing is performed, and the map data is written in the specified position map drawing memory, for the driver. Operation input means and the passenger operation input means
When the display operation of the specified position is performed on one of the
Either driver operation mode or passenger operation mode
And the driver operation mode or passenger operation mode.
One of the vehicle position map drawing data held in the vehicle position map drawing memory and the designated position map drawing data held in the designated position map drawing memory is displayed for the driver when shifting to the drive mode. One of the memory and the passenger display memory is designated, and the other of the vehicle position map drawing data and the designated position map drawing data is designated as the driver display memory or the passenger display memory. Then, the vehicle position map is displayed on the designated one of the driver display device and the passenger display device and the other designated one of the driver display device and the passenger display device is displayed. A recording medium in which a navigation program for displaying a designated position map on the recording medium is recorded. 6. A driver's operation input means and a passenger's operation input
When the display operation of the designated position is performed in either one of the
The driver operation mode or passenger operation mode
Set to the mode and read the necessary map data from the map database according to the vehicle position information input from the vehicle position measuring means,
Map drawing processing is performed and written in the vehicle position map drawing memory, and necessary map data is read from the map database corresponding to designated position information input from the driver operation input means or the passenger operation input means. , Map drawing processing and writing in specified position map drawing memory, and the driver operation
Mode or the passenger operation mode, the designated position map drawing process is performed, and the own vehicle position map drawing process is performed when the own vehicle position information is the own vehicle position map drawing memory. The update processing is performed only when the vehicle position map goes out of the range of the own vehicle position map stored in the previous operation, and the driver operation mode or the passenger operation mode is selected.
One of the vehicle position map drawing data held in the vehicle position map drawing memory and the designated position map drawing data held in the designated position map drawing memory is displayed for the driver when shifting to the drive mode. One of the memory and the passenger display memory is designated, and the other of the vehicle position map drawing data and the designated position map drawing data is designated as the driver display memory or the passenger display memory. Transfer to the other, drawing processing the own vehicle position mark indicating the own vehicle position information,
The driver display memory or the passenger display memory is overwritten on the one holding the drawing data of the vehicle position map, and the driver display device or the passenger display device is replaced by the designated one. A recording medium recording a navigation program for displaying a vehicle position map and displaying the designated position map on the designated other of the driver display device and the passenger display device. 7. Driver operation input means and fellow passenger operation input
When the display operation of the designated position is performed in either one of the
The driver operation mode or passenger operation mode
When the mode is set and the own vehicle position information from the own vehicle position measuring means is out of the range of the own vehicle position map previously created and written in the own vehicle position map drawing memory, the necessary map data is stored in the map database. Read from, and overwrite the map drawing memory by map drawing processing, corresponding to the specified position information from the driver operation input means or the passenger operation input means,
Read necessary map data from the map database,
Map drawing processing and writing to the specified position map drawing memory, the driver operation mode or the passenger operation mode is set.
And sometimes, the one of the vehicle position map drawing data stored in the vehicle position map drawing memory, cut the vehicle position map drawing data of limited extent can be held in the display memory for the driver's or passenger The designated position map drawing data held in the designated position map drawing memory is assigned to a designated one of the driver display memory and the fellow passenger display memory. Of the driver's display device and the passenger's display device, the vehicle position map is displayed on the specified one of the driver's display device and the passenger's display device. A recording medium in which a navigation program for displaying a designated position map on the designated other side is recorded.