JPH11248482A - Navigator and medium with recorded navigation program to be incorporated therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the map display at different points on a plurality of displays, so that the map display near the present position can be successively made on a driver's display even during operation by a fellow passenger. SOLUTION: When a display operation of designated position map is made by a fellow passenger's operation input means 4, an inter-memory transfer means 511 transfers and holds own vehicle position map writing data held in an own vehicle position map writing memory 506 to a driver's display memory 508 and designated position map writing data held in a designated position map writing memory 507 to a fellow passenger's display memory 509 to display an own vehicle position map on a driver's display 1, and a fellow passenger's display 3 displays a designated position map. By one navigator the own vehicle position map can be displayed on the driver's display 1 and the designated position map such as destination map can be displayed on the fellow passenger's display 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, display devices installed at a plurality of places, such as front and rear seats, a driver's seat, a passenger seat, and a rear seat of a vehicle, display a map, and can operate the display state. Japanese Patent Laid-Open No. 9-8 / 1994
What is described in 9582 gazette is known.

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

[0004]

However, in such a conventional navigation device, if the operation is performed by any one of a plurality of input / output devices, the navigation information reflecting the operation is the same on any display device. Because the configuration is displayed, for example, if the passenger performs an operation input such as a destination input using the passenger input / output device while the vehicle is traveling, the driver input / output device includes the driver input / output device. A display image for inputting a destination for a fellow passenger is also displayed on the display device, and there has been a problem that a map display near a current position, which is necessary for a 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 near the current position can be continuously displayed on a driver's display device even during operation input by a passenger. It is an object of the present invention to provide a navigation device capable of displaying a map of different points on the device and a recording medium recording a navigation program incorporated in the navigation device.

[0006]

According to a first aspect of the present invention, there is provided a navigation apparatus comprising: a map database for holding map data; a vehicle position measuring means for measuring a vehicle position; a driver display device; Operation input means, a passenger display device, a passenger operation input device, and a driver holding map drawing data for displaying a vehicle position map or a designated position map on the driver display device. A display memory, a passenger display memory for holding map drawing data for displaying the vehicle position map or the designated position map on the passenger display device, and a map drawing data of a predetermined range around the vehicle position. One of the driver's operation input means and the passenger's operation input means, wherein the own vehicle position map drawing memory that holds the designated position map drawing memory that holds map drawing data of a predetermined range around the designated position; The display mode determining means for outputting a one-way operation mode command when the display command of the designated position map is issued from one side and the display command of the own vehicle position map is issued from either side, and the own vehicle position measuring means measures. According to the vehicle position, necessary map data is read from the map database, map drawing processing is performed, and the map data is written into the vehicle position map drawing memory, and the driver operation input means or the passenger operation input means is used. Map drawing means for reading necessary map data from the map database in accordance with the specified designated position, performing map drawing processing and writing the data in the designated position map drawing memory, Is output, the vehicle position map drawing data stored in the vehicle position map drawing memory and the designated position map drawing memory stored in the designated position map drawing memory. One of the designated position map drawing 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 designated as the driving. And an inter-memory transfer means for transferring the display memory to the designated other of the display memory for passengers and the display memory for passengers.

In the navigation apparatus according to the first aspect of the present invention, the map drawing means reads necessary map data from a map database in accordance with the position of the vehicle measured by the vehicle position measuring means, and performs map drawing processing. The necessary map data is read from the map database in accordance with the designated position information inputted from the driver's operation input means or the passenger's operation input means, written into the position map drawing memory, and the map drawing processing is performed to specify the designated position. Write to map drawing memory.

When one of the driver's operation input means and the passenger's operation input means receives a display command of the designated position map and one of the other receives a display command of the own vehicle position map, one of the operation instructions is displayed. The operation mode is shifted to the operation mode, and the inter-memory transfer unit transfers 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 to the driver. One of the display memory for the passenger and the display memory for the passenger, and the other of the vehicle position map drawing data and the designated position map drawing data to the designated one of the driver display memory and the passenger display memory. Transfer to the other side to hold. Thereby, one of the display device for the driver and the display device for the passenger displays the vehicle position map, and the other of the display device for the driver and the display device for the passenger displays the specified position map. Is displayed.

[0009] In this way, with one navigation device, the own vehicle position map is displayed on one of the driver display device and the passenger display device by operating the driver operation input device or the passenger operation input device. A designated position map such as a destination map can be displayed on the other of them.

According to a second aspect of the present invention, in the navigation apparatus according to the first aspect of the present invention, further, the vehicle position mark indicating the vehicle position measured by the vehicle position measuring means is drawn, and the display for the driver is performed. A vehicle or a passenger display memory that holds drawing data of the vehicle position map, or one or both of them, which overwrites the vehicle position drawing data, and the map drawing device measures the vehicle position measuring device. According to the vehicle position, necessary map data is read from the map database, map drawing processing is performed, and the map data is written into the vehicle position map drawing memory, and the driver operation input means or the passenger operation input means is used. In accordance with the designated designated position, necessary map data is read from the map database, map drawing processing is performed, the designated map data is written in the designated position map drawing memory, and When the mode determination means outputs the one-side operation mode command, the drawing processing of the designated position map is performed, and the drawing processing of the vehicle position map is performed by the vehicle position measured by the vehicle position measuring means. The update process is performed only when the vehicle goes out of the range of the previously created vehicle position map held in the map drawing memory.

[0011] In the navigation apparatus according to the second aspect of the present invention, the map drawing means reads necessary map data from the map database corresponding to the position of the vehicle measured by the vehicle position measuring means, performs map drawing processing, and performs map drawing processing. The map data is written into the position map drawing memory, and the necessary map data corresponding to the designated position specified by the driver's operation input means or the passenger's 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, there is a display command of the designated position map from one of the driver's operation input means and the passenger's operation input means, and a display command of the own vehicle position map from one of the other. When the one-side operation mode command is output, the drawing process of the designated position map is performed, and the drawing process of the own vehicle position map is performed by the own vehicle position map drawing memory. The update process is performed only when the vehicle comes out of the range of the vehicle position map created last time.

[0012] Thus, the display mode for displaying the vehicle position map or the designated position map is displayed on both the driver display device and the passenger display device, and the vehicle position map is displayed on one of the display modes. On the other hand, if a command to shift to the one-side operation mode for displaying the designated position map is input, the display device that continuously displays the own vehicle position map displays the own vehicle position map every time the own vehicle position changes. Instead of updating the vehicle position mark, only the vehicle position mark moves on the original vehicle position map while the actual vehicle position is within the display range of the vehicle position map displayed on the display device. The drawing process of the own vehicle position map is updated only after the own vehicle position comes out of the display range of the presently displayed own vehicle position map, and a new own vehicle position map is displayed. Become like As a result, the frequency of drawing processing of the own vehicle position map is reduced, and the drawing processing speed when displaying a plurality of types of maps individually on a plurality of display devices is increased.

According to a third aspect of the present invention, there is provided a navigation device.
Map database holding map data, own vehicle position measuring means for measuring own vehicle position, display device for driver, operation input device for driver, display device for passenger, operation input device for passenger A driver display memory for holding map drawing data for displaying a vehicle position map or a designated position map on the driver display device; and a vehicle position map or a designated position map on the passenger display device. A display memory for passengers holding map drawing data for displaying the vehicle, and a predetermined range around the position of the vehicle, which is wider than the range of the vehicle position map that can be stored in the driver and passenger display memories. A vehicle position map drawing memory for holding map drawing data of a range, a designated position map drawing memory for holding map drawing data of a predetermined range around a designated position, the driver operation input means and the passenger operation Display mode determining means for outputting a one-way operation mode command when a display command for a designated position map is issued from one of the force means and a display command for the own vehicle position map is issued from one of the other means; If the own vehicle position measured by the 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 read from the map database and the map is read. The drawing process is performed and written into the vehicle position map drawing memory, and necessary map data is read from the map database in accordance with the designated position specified by the driver operation input means or the passenger operation input means. Map drawing means for performing map drawing processing and writing the map data in the designated position map drawing memory; and when the display mode determining means outputs a one-side operation mode command, Of the vehicle position map drawing data held in the drawing memory, the vehicle position map drawing data in a range that can be held in the driver or passenger display memory is cut out, and the driver display memory and the passenger One of the display memory for the user
And inter-memory transfer means for transferring the designated position map drawing data held in the designated position map drawing memory to the designated one of the driver display memory and the fellow passenger display memory. .

In the navigation apparatus according to the third aspect of the present invention, the vehicle position measured by the vehicle position measuring means is previously generated by the map drawing means and the vehicle position map of the own vehicle position map written in the own vehicle position map drawing memory is stored. If it is out of the range, the necessary map data is read from the map database, the map drawing process is performed, and the map data is written into the own vehicle position map drawing memory, and also specified by the driver operation input means or the passenger operation input means. In accordance with the designated position, necessary map data is read from the map database, map drawing processing is performed, and the map data is written to the designated position map drawing memory.

When a display command of a designated position map is issued from one of the driver's operation input means and the passenger's operation input means and a display command of the own vehicle position map is issued from one of the other, the display mode is set. When the deciding means outputs the one-side operation mode command, the inter-memory transfer means sets the range of the own vehicle position map drawing data held in the own vehicle position map drawing memory which can be held in the driver or passenger display memory. Cut out the vehicle position map drawing data and transfer it to the designated one of the driver display memory and the passenger display memory, and drive the designated position map drawing data held in the designated position map drawing memory. Transfer to the designated other of the display memory for the passenger and the display memory for the passenger to be held,
A vehicle position map is displayed on a designated one of the driver display device and the passenger display device, and a designated position map is displayed on the other designated driver display device and the passenger display device. .

[0016] With this, if a shift command to one-side operation mode for displaying the own vehicle position map on one of the driver display device and the passenger display device and displaying the designated position map on the other is input. On the display device side that continuously displays the own vehicle position map, instead of repeating the own vehicle position map drawing process each time the own vehicle position changes, the own vehicle position map is created by one drawing process. While the actual vehicle position is present within a wide range of the vehicle position map held in the drawing memory, the vehicle position map drawing data in the drawing memory is stored in the driver or passenger display memory. The vehicle position map drawing data in a possible range is cut out, transferred to the display memory, and displayed on the corresponding display device. Then, when the actual position of the own vehicle comes out of the range of the vehicle position map drawing data of the wide range created last time, the processing of drawing the wide range of the vehicle position map is performed again to draw the own vehicle position map. Try to overwrite the memory.

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

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

The recording medium storing the navigation program according to the fifth aspect of the present invention reads necessary map data from a map database in accordance with the vehicle position information inputted from the vehicle position measuring means, and performs map drawing processing. In response 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, and the map drawing is performed. Processing and writing to the designated position map drawing memory, there is a display command of the designated position map from one of the driver's operation input means and the passenger's operation input means,
When there is a display command of the own vehicle position map from one of the other, the mode shifts to the one operation mode, and when the mode shifts to the one operation mode, the own vehicle position map drawing held in the own vehicle position map drawing memory is performed. One of the data and the designated position map drawing data held in the designated position map drawing memory is designated as one of the driver display memory and the passenger display memory, and the vehicle position map drawing data and the The other of the designated position map drawing data is transferred to the designated one of the driver display memory and the fellow passenger display memory, and is transferred to the designated one of the driver display device and the fellow passenger display device. A navigation program for displaying the own vehicle position map and displaying the designated position map on the designated other of the driver display device and the passenger display device. .

In the recording medium storing the navigation program according to the fifth aspect of the present invention, the navigation apparatus according to the first aspect of the present invention is implemented by loading the navigation program recorded on the recording medium into the program memory of the navigation apparatus.

According to a sixth aspect of the present invention, there is provided a recording medium on which the navigation program is recorded, wherein a display command of a designated position map is issued from one of the driver's operation input means and the passenger's operation input means, and from one of the other. When the display command of the vehicle position map is issued, the mode shifts to the one-side operation mode, and the necessary map data is read from the map database according to the vehicle position information input from the vehicle position measurement means, and the map drawing process is performed. Then, the necessary map data is read from the map database in accordance with the designated position information input from the driver's operation input means or the passenger's operation input means. After processing and writing to the designated position map drawing memory, and when shifting to the one-side operation mode, the designated position map is drawn and the own vehicle position is The drawing process of the figure is updated only when the own vehicle position information comes out of the range of the previously created own vehicle position map held in the own vehicle position map drawing memory. When you switch to 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 by a driver display memory and a passenger display memory. Transfer the other one of the vehicle position map drawing data and the specified position map drawing data to the other specified one of the driver display memory and the fellow passenger display memory; Draws the own vehicle position mark indicating own vehicle position information, and overwrites the driver display memory or the passenger display memory, whichever holds the drawing data of the own vehicle position map, to display for the driver. A navigation system in which a vehicle position map is displayed on a designated one of the device and the passenger display device, and a designated position map is displayed on the other designated driver display device and the passenger display device. Is a record of an Activation program.

In the recording medium storing the navigation program according to the sixth aspect of the present invention, the navigation apparatus according to the second aspect of the present invention is realized by loading the navigation program recorded thereon into the program memory of the navigation apparatus.

According to a seventh aspect of the present invention, there is provided a recording medium storing a navigation program, wherein a display command for a designated position map is inputted from one of a driver's operation input means and a passenger's operation input means, and one of the other is used. When the display command of the own vehicle position map is input from the vehicle, the operation mode shifts to the one-side operation mode, and the own vehicle position information from the own vehicle position measuring means is generated previously and written in the own vehicle position map drawing memory. If it is out of the range of the car position map, the necessary map data is read from the map database, the map drawing process is performed, and the vehicle position map drawing memory is overwritten, and the driver operation input means or the passenger operation is performed. In accordance with the designated position information from the input means, necessary map data is read from the map database, map drawing processing is performed, and the map data is written to the designated position map drawing memory. When the command is output, of the vehicle position map drawing data held in the vehicle position map drawing memory, the vehicle position map drawing data of a limited range that can be stored in the driver or passenger display memory. The designated position map drawing data held in the designated position map drawing memory is stored in the designated one of the driver display memory and the passenger display memory. Transfer to the designated other of the display memory for the driver and display the own vehicle position map on the designated one of the display device for the driver and the display device for the passenger, and the display device for the driver and the display for the passenger. This is a program for recording a navigation program for displaying a designated position map on the other designated device.

In the recording medium storing the navigation program according to the seventh aspect of the present invention, the navigation apparatus according to the third aspect of the present invention is realized by loading the navigation program recorded on the recording medium into the program memory of the navigation apparatus.

[0025]

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

According to the second aspect of the present 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. The display device that displays the map does not update the own vehicle position map every time the own vehicle position changes, but the actual own vehicle position is within the display range of the own vehicle position map displayed on the display device. While the vehicle is present, only the vehicle position mark is displayed so as to move on the original vehicle position map, and only when the vehicle position goes out of the display range of the current vehicle position map is displayed. Updated the vehicle position map drawing process to display a new vehicle position map, reduce the frequency of the vehicle position map drawing process, and display multiple types of maps individually on multiple display devices In this case, the drawing processing speed can be increased.

According to the third aspect of the present 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 display device side that displays the map, the drawing process of the own vehicle position map is not repeated every time the own vehicle position changes, but is created in one drawing process and stored in the own vehicle position map drawing memory. While the actual vehicle position exists within a wide range of the vehicle position map, the vehicle position map in a range that can be held in the driver or passenger display memory from the vehicle position map drawing data in the drawing memory. Cut out the drawing data, transfer it to the display memory, display it on the corresponding display device, and when the actual vehicle position comes out of the range of the wide-range vehicle position map drawing data created last time, , A wide range of vehicle position maps Process and overwrites the vehicle position map drawing memory, so the necessary map data is read from the map database, and the drawing process of the vehicle position map is performed using the map data. It is possible to increase the drawing processing speed when individually displaying on the display device.

According to the fourth aspect of the present invention, 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 fifth aspect of the present invention, the navigation device according to the first aspect of the present invention 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 claim 2 can be realized by loading the recorded navigation program into the program memory of the navigation device.

According to the seventh aspect of the present invention, the navigation apparatus according to the third aspect of the present invention can be realized by loading the recorded navigation program into the program memory of the navigation apparatus.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a navigation device according to one embodiment of the present invention. The navigation device according to this embodiment is a microcomputer including a driver display device 1, a driver operation input device 2, a passenger display device 3, a passenger operation 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 large-capacity storage recording medium, for example, a CD-ROM, a DVD-ROM drive device, and a GPS.
And a gyro sensor and a mileage measuring device.
The vehicle is provided with a vehicle position measurement device 7 for automatically measuring the vehicle position.

The control device 5 performs various navigation functions by executing the registered programs. The functional configuration of the control device 5 is divided into blocks, and the control device 5 includes the following functional elements. A map data reading memory 501 for temporarily storing map data read from the map database 6; a host vehicle position determining unit 5 for determining a host vehicle position based on a signal from the host vehicle position measuring device 7
02, a map centered on a position determined by the operation processing display position determination unit 503, the own vehicle position determination unit 502, or the operation processing display position determination unit 503 that determines a display position based on an input from the operation input device 2 or 4. Drawing unit 504 that draws the vehicle position from the map data stored in the map data reading memory 501, and the vehicle position where the vehicle position is displayed as a current position mark at a corresponding position on the map to be displayed on the display device 1 or 3. The 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 the driver or passenger input by the driver or passenger created by the map drawing unit 503. A designated position map drawing memory 507 for storing map drawing information corresponding to the point of interest, and drawing information to be displayed on the driver's seat display device 1 A driver display memory 508, a passenger display memory 509 for storing 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 recommended route calculation unit 510, the vehicle position map drawing memory 506, and the designated position map drawing memory 507 pass the drawing information stored in the display memory 508 to the driver and the display memory 5 for the passenger.
Transfer section 51 for transferring to any one or both
1 is provided.

Both the driver operation input device 2 and the passenger operation input device 4 have operation buttons shown in FIG. That is, it is provided with a main operation button 201, a mode changeover switch 202, a wide area switch 203, and a detail switch 204 in which an eight-way joystick type input device and a push button function are integrated. The main operation button 201 is used for scrolling a map and determining a destination, and the mode switch 202 is used for switching a display mode. The wide area switch 203 and the detail switch 204 are used for enlarging or reducing a map to be displayed.

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 entire display mode will be described.

(1) Own-vehicle position display mode In this mode, as shown in FIG. 3 (a) → (b), the own-vehicle position mark Mk is displayed on both the driver display device 1 and the passenger display device 3. And the map Mp side is scrolled little by little as the own vehicle position moves.

Therefore, as shown in the flowchart of FIG. 4, a vehicle position signal such as latitude and longitude measured by the vehicle position measurement device 7 is input, and the vehicle position determination section 502 of the control device 5 causes the control device The vehicle position data used in step 5 is created (step S1).

In the map drawing section 504, the vehicle position determination section 5
The map data of a predetermined area around the own vehicle position data from the center 02 is read from the map data read memory 501 to perform the drawing process. At this time, if necessary, map data corresponding to the position of the vehicle is stored in a map data reading memory 50.
1 is read from the map database 6 and stored in the map data reading memory 501 to use the map data. Then, the drawing data created by the map drawing unit 504 is written into the 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). The own vehicle position drawing unit 505 obtains own vehicle position data from the own vehicle position determining unit 502 and draws the own vehicle position in the driver display memory 508 and the passenger display memory 509. The content of the driver display memory 508 is displayed on the driver display device 1, and the content of the passenger display memory 509 is displayed on the passenger display device 3 (step S).
5, S6).

Hereinafter, by repeating these processes, the own vehicle position mark Mk is sequentially displayed on the driver display device 1 and the passenger display device 3 as shown in FIG. 3 (a) → (b). The map Mp of the surrounding area is always displayed as a center and is scrolled little by little.

(2) Passenger operation mode In the own vehicle position display mode, the passenger input device 4
The mode is switched to this mode by pressing the mode change switch 202. In this mode, the center of the display of the map on the passenger display device 3 is switched from the own vehicle position display mode by the operation of the passenger operation input device 4, and the joystick function of the main operation button 201 is used to scroll in eight directions. Be able to operate. Therefore, if the destination is determined by operating the main operation button 201, the mode returns to the own vehicle position display mode. The mode switch 202 can be used to return to the vehicle position display mode.

As shown in the flow charts of FIGS. 5 and 6, the mode changeover switch 20 of the passenger operation input device 4
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 an initial value of the designated position (step S11), and moves in eight directions according to the scroll operation by the main operation button 201. The designated position is changed (steps S12, S13).

The map drawing section 504 reads the map data of a predetermined area centered on the specified position from the map database 6 with respect to the specified position determined by the operation processing display position determining section 503 and causes the map data reading memory 501 to hold the data. Based on this, drawing processing of a map centering on the specified position, that is, the specified position map is performed, and the specified position map drawing data is written into the specified position map drawing memory 507 (step S14).

Subsequently, the designated position map drawing memory 507 is stored in the display memory 509 for the passenger by the inter-memory transfer unit 511.
The specified position map drawing data stored in
Displayed on the passenger display device 3 (steps S15 and S15).
16).

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

On the other hand, if it is determined in step S18 that the map data reading memory 501 does not hold the map data necessary for displaying the vehicle position map, the vehicle position stored in the vehicle position map memory 506 is stored. It is checked whether or not the own vehicle position exists within the range of the map (step S20). If the own vehicle position 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 the vehicle position mark at a position corresponding to the position within the range of the vehicle position map currently stored 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 outputs new map data corresponding to the own vehicle position to the map database 6 via the map data reading memory 501. (Step S2)
1), use this to perform the drawing process of the vehicle position map,
Writing to own vehicle position map drawing memory 506 (step S1)
9) The contents of the vehicle position map drawing memory 506 are transferred to the driver display memory 508 by the inter-memory transfer unit 511 (step S22), and the vehicle position map is displayed on the driver display device 1 (step S23). ).

In the passenger operation mode, when the passenger operates the passenger input device 4 to perform a designated position display operation such as a destination display operation, the designated position is displayed on the passenger display device 3. In addition to displaying a map of a predetermined area centered on the center, the driver's display device 1 displays the vehicle position map of the vehicle position center created last time as shown in FIG. 3 (a) → (c). When the vehicle is within the area of Mp (the map of FIG. 3A), a display is performed in which only the own vehicle position mark Mk is moved on the map Mp while keeping the map Mp side as it is (FIG. 3).
(A) → (c)). And the presently displayed vehicle position map M
Only when the newly measured own vehicle position does not fall within the range of p, a new own vehicle position map is created and displayed on the driver display device 1. In this case, the current position mark Mk
Before the display position on the screen of the display device 1 completely deviates from the range of the display map, for example, if a position within one-fourth from the upper end is reached, a new vehicle position map is drawn. You can also.

(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 change switch 202. In this mode, the map display center of the driver display device 1 is switched from the vehicle position display mode by the operation of the driver operation input device 2, and scrolled in eight directions using the joystick function of the main operation button 201. Be able to operate. Therefore, if the destination is determined by operating the main operation button 201, the mode returns to the own vehicle position display mode. The mode switch 202 can be used to return to the vehicle position display mode.

This driver operation mode is realized by performing the same processing in the passenger operation mode (2) except that the driver and the passenger are replaced. Therefore, a map display centering on the designated position is displayed on the driver display device 1,
3 (a) to 3 (c) are displayed on the passenger display device 3. FIG.

(4) Simultaneous operation mode In the passenger operation mode, the mode is switched by pressing the mode switch 201 of the operation input device 2 for the driver.
In the driver operation mode, the passenger operation input device 4
The mode is switched by pressing the mode change switch 201.

In this mode, the driver's operation input device 2
The display designated position is scrolled by any input of the passenger operation input device 4 and the map display is updated, 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 decide using
The destination is determined, and the mode is switched to the vehicle position display mode.
Also, the mode changeover switch 20 is operated by the driver's operation input device 2.
Pressing 2 causes the passenger operation mode, and pressing the mode switch 202 on the passenger input device 4 switches to the driver operation mode.

The operation in the simultaneous operation mode will be described by taking as an example a case where the operation is switched from the passenger display mode. When the mode switching switch 202 of the driver's operation input device 2 is pressed, the operation processing display position determination unit 503 switches to the simultaneous operation mode. The map drawing unit 504 reads map data from the map database 6 with respect to the designated position determined by the operation processing display position determination unit 503, and stores the map data in the map data reading memory 501.
, And draws a map at the designated position center in the designated 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.
7 is transferred by the inter-memory transfer unit 511.

The own-vehicle-position drawing unit 505 includes the own-vehicle-position determining unit 5.
02, the own vehicle position is obtained. If the own vehicle position is within the display range, the own vehicle position is drawn in each of the driver display memory 508 and the passenger display memory 509. The content of the driver display memory 508 is displayed on the driver display device 1, and the content of the passenger display memory 509 is displayed on the passenger display device 3.

Therefore, in this mode, if the driver's operation input device 2 or the passenger's operation input device 4 performs an operation of determining a destination and other designated positions and displaying a designated position map, The designated position map centering on the designated position is also displayed on both the driver display device 1 and the passenger display device 3.

As described above, in the navigation device according to the first embodiment, the map database 6 serving as the navigation body and the control device 5 are combined into one set, and the drawing memory in the control device 5 is additionally provided. By changing the program in 5, the map display of a different point can be displayed on each of the plurality of display devices so that the map display near the current position is continuously displayed on the display device for the driver even during the operation input by the passenger. .

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 control device 5 is newly added to the control device 50, the driver input / output device 51, and the passenger. And the control device 50 and the driver input / output device 51 and the passenger input / output device 52 in place of the inter-memory transfer unit 511. , 5
14 are installed, and these are connected by a data multiplex communication line 515.

The control device 50 has a map data reading memory 5
01, own vehicle position determining unit 502, operation processing display position determining 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, and recommended route calculation unit 510. And a data communication unit 512 in place 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. And a data communication unit 513 in place 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. And a data communication unit 514 in place of the inter-memory transfer unit 511.

In the navigation device according to the second embodiment, as in the first embodiment, (1) own vehicle position display mode, (2) passenger operation mode, (3) simultaneous display mode, 4) Four modes of the driver operation mode can be selected, and in each mode, a display mode similar to that of the first embodiment is taken.

However, the memory-to-memory transfer processing performed by the memory-to-memory transfer unit 511, that is, the vehicle position map drawing data written in the vehicle position map drawing memory 506 and the designated position map drawing memory 507 is written. The data transfer units 512, 513, and 514 perform the data transfer processing for transferring the specified position map drawing data to the driver display memory 508 or the passenger display memory 509, respectively.
15 through.

Thus, especially the passenger input / output device 5
2 are connected to the data multiplex communication line 515, so that 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. Means that individual map information can be displayed.

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

The control device 5 includes a map data reading memory 501, a vehicle position determining unit 502, an operation processing display position determining unit 503, a map drawing unit 504 ', and a vehicle position drawing unit 50.
5, a vehicle position map drawing memory 506 ', a designated position map drawing memory 507', a driver display memory 508, a passenger display memory 509, a recommended route calculation section 510, and an inter-memory transfer section 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 same as those shown in FIGS.
This embodiment is common to the above embodiments.

The map drawing section 504 ′ includes the display range determination section 4.
1, a memory moving unit 42 and a drawing processing unit 43. Own vehicle position map drawing memory 50
6 'and the designated position map drawing memory 507' have a storage capacity capable of holding a larger range of map drawing data than the driver's display memory 508 and the passenger's display memory 509, and a map drawing section 504 '. , The map image data is written. The 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 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 'is provided by the map drawing section 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 diagrams of FIGS. Note that this own-vehicle position map drawing processing replaces the flowchart of the own-vehicle position display mode of the first embodiment shown in FIG. 4, and is also used in the passenger operation mode shown in FIGS. 5 and 6. It replaces the part after step S17 in the flowchart. Other operations are the same as those of the first embodiment.

FIG. 10A shows the vehicle position map drawing memory 5.
06 'shows the entire map data Mp1 held in the map data. First, when the own vehicle position (indicated by the own vehicle position mark Mk here) is determined (step S31), the area Mp2 of the size of the display memory 508 for the driver is centered on the own vehicle position Mk. (Step S32, Step S32).
S33), a map image Mp centered on the own vehicle position Mk is displayed on the driver display device 1 as shown in FIG. 10B (step S34).

Then, in accordance with the movement of the own vehicle position, the driver display memory 5 is read from the own vehicle position map drawing memory 506 '.
08, the own vehicle position Mk is the entire map data Mp of the own vehicle position map drawing memory 506 '.
As long as the vehicle is within the frame F inside 1, the above process is repeated to always display the vehicle position map Mp centered on the vehicle position Mk.

Here, the frame F inside the entire map data Mp1 in FIG. 10A is set to a distance inside the driver display memory 508 by half the size a × b in the latitude and longitude directions. 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'.

If the own vehicle position Mk goes outside the frame F inside the entire map data Mp1 while the own vehicle position map centering on the own vehicle position is continuously displayed (step S1). (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 section 41 in the map drawing section 504 ', and
If it is determined that the vehicle has arrived at a position such as the point P1 shown in (a), the area to be transferred to the driver memory 508 will not fit in the area Mp1 of the own vehicle position map drawing memory 506 ', and the map Mp1 will be used. Must be redrawn (NO in step S32). Therefore, the current vehicle position M
It is determined whether k has protruded 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 upward 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 is stored in the display memory 5 for the driver.
08 is moved downward by the vertical width a of the map screen a × b of step 08 (steps S35 and S36), and the map data of the area corresponding to the width a opened upward in the drawing memory 506 ′ is read from the map database 6. Then, the drawing processing is performed by the drawing processing unit 43, and the result is written in the vehicle position map drawing memory 506 '(step S42).

Similarly, if the protruding direction is downward, the entire vehicle position map Mp1 drawn in the 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 corresponding to the width a opened downward is read, subjected to drawing processing, and written into the own vehicle position map drawing memory 506' (step S42).

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

As shown in FIG. 11 (a), with respect to the entire vehicle position map data Mp1 newly drawn in the vehicle position map drawing memory 506 ', the vehicle position Mk at the point P1 is centered. A × b driver display memory 508
Is transferred to the driver display memory 508 by the inter-memory transfer unit 511 '(step S3).
3) As shown in FIG. 11B, the driver's display device 1 displays the 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 determining unit 503 is replaced by the designated position determined by the operation processing display position determining unit 503 in the above-described designated vehicle position map drawing processing. Will be used.

As described above, in the navigation device according to the third embodiment, similarly to the first and second embodiments, the operation is performed by one operation input device, for example, the passenger input device 4. Even if the map data is drawn on the passenger display device 3 while reading the map data of the different designated points, the other display device, that is, the driver display device 1, has its own vehicle position centered on the own vehicle position Mk. The map display can always be performed, and the frequency of reading map data from an external storage device, which is generally extremely slow compared to the drawing processing speed of the MPU, can be reduced. Thus, the frequency of interrupting the display of the vehicle position map on the other display device can be reduced.

In the third embodiment, the host vehicle position Mk is the total map data M of the drawing memory 506 '.
The movement width when it protrudes from the frame F inside p1 is a, b
The width is not limited to this, and can be set to another appropriate width.

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 '
The capacity of the driver and passenger display memories 508, 50
9, the map may be drawn only in a predetermined range centered on the designated position.

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

[Brief description of the 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 the driver and passenger operation input device according to the embodiment.

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

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

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

FIG. 6 is a latter half of the flowchart of the passenger display mode in the 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 a display process of a vehicle position map in the embodiment.

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

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

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Driver display device 2 Driver operation input device 3 Passenger display device 4 Passenger operation input device 5 Control device 6 Map database 7 Own vehicle position measuring device 50 Control device 51 Driver input / output device 52 User input / output device 501 map data reading memory 502 own vehicle position determining unit 503 operation processing display position determining unit 504, 504 'map drawing unit 505 own vehicle position drawing unit 506, 506' own vehicle position map drawing memory 507, 507 ' Designated position map drawing memory 508 Driver display memory 509 Passenger display memory 510 Recommended route calculation unit 511, 511 'Memory transfer unit 512 Data communication unit 513 Data communication unit 514 Data communication unit 515 Data multiplex communication line

Claims (7)

[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 device, a passenger display device, and a passenger Driver's operation input means, a driver's display memory for holding map drawing data for displaying a vehicle position map or a designated position map on the driver's display device, and a vehicle position on the passenger's display device. A passenger display memory for holding map drawing data for displaying a map or a specified position map; a vehicle position map drawing memory for storing a predetermined range of map drawing data around the vehicle position; A designated position map drawing memory for holding map drawing data of a predetermined range, and a designated position map display instruction from one of the driver operation input means and the passenger operation input means. From Re or other when there is a display command of the vehicle position map,
Display mode determining means for outputting a one-way operation mode command, and corresponding to the vehicle position measured by the vehicle position measuring means,
Read the necessary map data from the map database,
The map drawing process is performed and the vehicle position is written in the map drawing memory, and necessary map data is stored in the map database in accordance with the designated position specified by the driver operation input means or the passenger operation input means. A map drawing means for reading, map drawing processing and writing in the designated position map drawing memory; and a self-vehicle held in the self-vehicle position map drawing memory when the display mode determining means outputs a one-side operation mode command. One of the position map drawing data and the designated position map drawing data held in the designated position map drawing memory is assigned to the designated one of the driver display memory and the fellow passenger display memory, and the vehicle position is stored. The other of the map drawing data and the designated position map drawing data is transferred to the specified other of the driver display memory and the fellow passenger display memory. Navigation device comprising: a memory transfer means. 2. The navigation device according to claim 1, further comprising: drawing a vehicle position mark indicating the vehicle position measured by the vehicle position measuring means; and displaying the vehicle display mark for the driver or a passenger. The display memory includes a vehicle position drawing means for overwriting one or both of the drawing data of the vehicle position map holding the drawing data of the vehicle position map, wherein the map drawing means corresponds to the vehicle position measured by the vehicle position measuring means. Then, necessary map data is read from the map database, map drawing processing is performed and written in the vehicle position map drawing memory, and a designated position designated by the driver operation input means or the passenger operation input means In response to the above, necessary map data is read from the map database, map drawing processing is performed, and the map data is written into the designated position map drawing memory, and the display mode determining means is provided. When the one-side operation mode command is output, the drawing process of the designated position map is performed, and the drawing process of the own vehicle position map is performed by the own vehicle position map measured by the own vehicle position measuring means in the own vehicle position map drawing memory. A navigation device that performs an update process only when the vehicle is out of the range of the previously created vehicle position map that is held. 3. A map database for 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. Driver's operation input means, a driver's display memory for holding map drawing data for displaying a vehicle position map or a designated position map on the driver's display device, and a vehicle position on the passenger's display device. A passenger display memory for holding map drawing data for displaying a map or a designated position map; and a vehicle position map that can be stored in the driver and passenger display memory in a predetermined range around the vehicle position. A vehicle position map drawing memory that holds map drawing data in a range wider than the range of the specified position; a designated position map drawing memory that holds map drawing data in a predetermined range around a designated position; There are display instruction of the designated position map from one of means and passenger's operation input means, and when there is a display command of the vehicle position map from the other one,
A display mode determining means for outputting a one-way operation mode command, and a range of the own vehicle position map which is previously created and written in the own vehicle position map drawing memory by the own vehicle position measured by the own vehicle position measuring means. If so, necessary map data is read from the map database, map drawing processing is performed and written into the vehicle position map drawing memory, and designated by the driver operation input means or the passenger operation input means. In response to the designated position, necessary map data is read from the map database, map drawing processing is performed, and the map drawing means for writing the designated position map drawing memory to the designated position map drawing memory, and the display mode determining means outputs one operation mode command. At times, of the vehicle position map drawing data held in the vehicle position map drawing memory, a range of a range that can be held in the driver or passenger display memory is used. The vehicle position map drawing data is cut out, and the designated position map drawing data stored in the designated position map drawing memory is stored in the designated one of the driver display memory and the passenger display memory. A navigation device, comprising: a display memory for memory; and a memory transfer means for transferring data to a designated one of the passenger display memories. 4. The navigation device according to claim 1, further comprising a data multiplex transmission unit instead of the inter-memory transfer unit. 5. In accordance with the vehicle position information input from the vehicle position measurement means, necessary map data is read from a map database, map drawing processing is performed, and the map data is written into a vehicle position map drawing memory. Corresponding to the designated position information input from the operation input means for the passenger or the operation input means for the passenger, reads necessary map data from the map database, performs map drawing processing, and writes it in the designated position map drawing memory. When the display command of the designated position map is issued from one of the operation input means for passengers and the operation input means for the passenger, and the display command of the own vehicle position map is issued from one of the other, the operation mode shifts to one operation mode. When shifting to the one-side operation mode, the vehicle position map drawing data stored in the vehicle position map drawing memory and the specification stored in the designated position map drawing memory One of the placement map drawing data is designated as one of the driver display memory and the passenger display memory, and the other one of the vehicle position map drawing data and the designated position map drawing data is displayed for the driver. The display is transferred to the other one of the memory and the display memory for the passenger, and the vehicle position map is displayed on one of the display device for the driver and the display device for the passenger, and the display device for the driver is displayed. And a navigation medium for recording a navigation program for displaying a designated position map on a designated other one of the passenger display devices. 6. When one of the driver's operation input means and the passenger's operation input means receives a display command of a designated position map and one of the other receives a display command of a vehicle position map, one of the driver's operation input means and the passenger's operation input means receives a display command of a vehicle position map. The mode is shifted to the operation mode, and the necessary map data is read from the map database in accordance with the vehicle position information input from the vehicle position measuring means.
The map drawing process is performed and the vehicle position map drawing memory is written into the memory, and necessary map data is read from the map database in accordance with the designated position information input from the driver operation input means or the passenger operation input means. When the map drawing process is performed and written in the designated position map drawing memory, and when the mode shifts to the one-side operation mode, the designated position map is drawn, and the drawing process of the own vehicle position map is performed by the own vehicle position information. The update process is performed only when the vehicle is out of the range of the previously created own vehicle position map held in the own vehicle position map drawing memory. One of the vehicle position map drawing data held in the drawing memory and the designated position map drawing data held in the designated position map drawing memory is stored in the driver display memory. And one of the display memory for the passenger and the other of the vehicle position map drawing data and the designated position map drawing data is designated as the driver display memory and the passenger display memory. Transfer to the other, drawing processing of the vehicle position mark indicating the vehicle position information,
Overwrites the driver's display memory or the passenger's display memory that holds the drawing data of the vehicle position map, and replaces the driver's display device or the passenger's display device with the designated one of the driver's display device and the passenger's display device. A recording medium for recording a navigation program for displaying a vehicle position map and displaying a specified position map on a designated one of the driver display device and the passenger display device. 7. When a display command for a designated position map is inputted from one of the driver operation input means and the passenger's operation input means, and a display command for the own vehicle position map is inputted from one of the other. If the operation mode is shifted to the one-side operation mode and the vehicle position information from the vehicle position measurement means is out of the range of the vehicle position map previously created and written in the vehicle position map drawing memory, the necessary The map data is read from the map database, the map drawing processing is performed, and the vehicle position map drawing memory is overwritten, and in accordance with the designated position information from the driver operation input means or the passenger operation input means,
Read the necessary map data from the map database,
When the map drawing processing is performed and the designated position map drawing memory is written, and when the one-side operation mode command is output, the vehicle position map drawing data held in the vehicle position map drawing memory includes data for a driver or a passenger. The vehicle position map drawing data of a limited range that can be stored in the display memory for the vehicle is cut out, and the specified position is stored in the designated position map drawing memory in one of the driver display memory and the passenger display memory. The designated position map drawing data is transferred to the designated one of the driver display memory and the passenger display memory, and the vehicle is assigned to the designated one of the driver display device and the passenger display device. A recording medium for recording a navigation program for displaying a position map and displaying a specified position map on a designated one of the driver display device and the passenger display device.