JP2002357447A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device capable of displaying a present position even when positional data cannot be obtained in a position data generation part and displaying the direction and a distance from the present position to a destination. SOLUTION: This navigation device having a storage media means storing map information received from a main device having a map information supplying means, is provided with a central processing unit 4 controlling the whole of the navigation device, an operation part, and a display part. The central processing device is provided with an instruction determining means 41, which determines whether an optional point displayed in the display part is the point directed by the operation part or not, and a storage means 43 storing the directed optional point as a present position in a memory such as a RAM when the instruction determining means determines that the optional point is directed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation apparatus having storage media means for receiving and storing map information from a main apparatus having map information supply means.

[0002]

2. Description of the Related Art A car navigation system is mounted on a vehicle and displays a destination (a destination or a stopover) and a current position of the vehicle. It is convenient if the car navigation device can be used for purposes other than automobiles, for example, during walking.
It is cumbersome to carry all of the car navigation devices while walking, and the weight of the device may cause fatigue of the arms. As a main configuration of the navigation device, one that carries only the navigation device when walking is considered.

[0003] In such a navigation device, when it is attached to the main unit, a map is stored in a storage unit of the navigation device from a map storage unit of the main unit, and when walking, the map and the current location are navigated. It is displayed on the display unit of the device and used for guidance. At this time, information on the current position displayed on the display unit of the navigation device is obtained from a position data generation unit such as a GPS.

[0004]

However, in the conventional navigation device, the current position information is obtained as position data from the position data generating unit, but the position data cannot be obtained by the position data generating unit such as GPS due to radio wave interference or the like. In this case, the current position is not displayed, and the direction from the current position to the destination and the distance to the destination cannot be displayed.

In this navigation device, it is required that the present position can be displayed even when the position data cannot be obtained by the position data generator, and that the direction from the current position to the destination and the distance from the destination can be displayed. Have been.

In order to satisfy this requirement, the present invention can display the current position even if the position data cannot be obtained by the position data generator, and displays the direction from the current position to the destination and the distance from the destination. It is an object of the present invention to provide a navigation device that can perform the navigation.

[0007]

SUMMARY OF THE INVENTION In order to solve this problem, a navigation device according to the present invention is a navigation device having storage media means for receiving and storing map information from a main unit having map information supply means. The navigation device includes a central processing unit that controls the entirety, an operation unit, and a display unit, and the central processing unit determines whether an arbitrary point on the map displayed on the display unit is designated by the operation unit. And a storage means for storing, in the RAM or other memory, the specified point as the current location when the instruction determining section determines that the arbitrary point is specified. I have.

Thus, the present position can be displayed even when the position data cannot be obtained by the position data generating section, and a navigation device capable of displaying the direction from the current position to the destination and the distance from the destination can be obtained. Can be

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A navigation device according to a first aspect of the present invention is a navigation device provided with storage media means for receiving and storing map information from a main unit having a map information supply means. The device has a central processing unit that controls the whole, an operation unit, and a display unit, and the central processing unit determines whether an arbitrary point on the map displayed on the display unit has been instructed by the operation unit. And a storage means for storing the designated point as a current position in a memory such as a RAM when the instruction determining means determines that the given point is designated.

[0010] With this configuration, an arbitrary point on the map can be designated as the current position, so that the current position can be displayed by a mark or the like even if the position data cannot be obtained by the position data generator. It has the effect of being able to display the direction to the destination, the distance to the destination, and the like.

[0011] The navigation device according to claim 2 is
A navigation device comprising storage media means for receiving and storing map information from a main device having a map information supply means, wherein the navigation device includes a central processing unit for controlling the whole, an operation unit, and a display unit. The central processing unit has an instruction determining unit that determines whether an arbitrary point on the map displayed on the display unit is instructed by the operation unit, and the instruction determining unit determines that the arbitrary point is instructed. A display means for displaying a destination mark at an arbitrary point instructed; a storage means for storing the instructed arbitrary point as a destination; and a current position or instruction determination obtained from a position data generator such as a GPS. And a drawing means for drawing a straight line between the present position and the destination as an arbitrary point designated by the means.

With this configuration, an arbitrary point on the map can be designated as a destination, and a straight line can be drawn between the designated destination and the current location, so that the direction from the current location to the destination can be displayed. It has the action of:

According to a third aspect of the present invention, there is provided a navigation device,
The navigation device according to claim 2, wherein the central processing unit includes a calculation unit that calculates a linear distance between the current position and the destination.

With this configuration, the straight-line distance between the current position and the destination can be calculated, so that the distance from the current position to the destination can be displayed by a numerical value or the like.

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIGS.

(Embodiment 1) FIG. 1 is a block diagram showing a car navigation apparatus according to Embodiment 1 of the present invention.

In FIG. 1, A is a navigation device,
B is a main unit, and C is a broadcasting unit.

In the navigation device A, 1 is an operation input unit having keys for performing various operations, 2 is a display unit for displaying image data processed by a central processing unit 4 as will be described later, and 3 is a display unit 2 A screen operation unit mounted on the surface of the screen and also operating as an input device by touching a predetermined place on the displayed screen, 4 is a central processing unit (CPU) that controls the entire operation, and 5 is a current position. A GPS unit (position data generation unit) for the navigation device A for generating position data by inputting the position information indicated from the antenna at any time, 6 is a menu screen or a program in which communication-related operation commands are summarized, various set values, screen display characters A ROM section 7 stores a list of telephone numbers of communication partners input from the operation input section 1, various user setting values, and external (for example, the Internet). Storing data such as input information from the site), erased if necessary the stored data R
AM unit, 8 is a secondary battery unit incorporating a rechargeable battery / charger, 9
Are mobile phones such as PHS and digital mobile phones, 10
Is a communication interface unit (communication I / F unit) as a connection interface unit of the portable telephone 9, and 11 is a unit that can store and read various data such as map data and exchange data with other similar devices. External storage media unit 14 capable of amplifying an input audio signal and
Audio output unit for outputting to 5a or headset 15b, 21
24, a connector; 25, a light-receiving section for receiving light such as infrared rays transmitted from a remote controller (not shown);
T2 is an antenna of the mobile phone 9.

In the broadcasting section C, reference numeral 12 denotes a television tuner section (TV section), and reference numeral 13 denotes an FM receiving section (FM section) having a receiver function such as FM multiplex broadcasting and FM radio broadcasting.
It is.

Further, in the main unit B, 16 is an audio output unit for amplifying the input audio signal and outputting it to the speaker 16a, and 17 is a main unit for generating position data by inputting position information indicating the current position from the antenna as needed. GPS for device B
Unit (position data generating unit), 18 is a power supply unit for supplying power to the navigation device A and the broadcasting unit C together with the main unit B, and 19 is a DVD, CD-ROM, etc. And a map information supply media unit 20 for storing a gyro as an acceleration sensor,
Reference numeral 6 denotes a parking brake sensor unit for detecting a parking brake signal a from the automobile, and AT3 denotes a GPS antenna attached to the outside of the automobile body or the like.

In FIG. 1, a GPS unit 5 inputs position information (position data) indicating a current position to a central processing unit 4 when walking or the like, and the central processing unit 4 transmits the input position information to an external storage medium. The current position is displayed as an icon or the like on the map screen on the corresponding latitude / longitude by collating with the map information of the unit 11. The GPS unit 17 that generates position data as current position information inputs position information (position data) indicating the current position to the central processing unit 4 in the car navigation mode, and the central processing unit 4 performs the same operation as the GPS unit 5. The input position information is compared with the map information of the map information supply media unit 19, and the current position is displayed as an icon or the like on a map screen on the corresponding latitude and longitude. The map information supply media section 19 stores map information of the whole country, various drive information, and the like. When the navigation device A is separated from the main device B by removing the connection connector 21 from the navigation device A, it is necessary to recognize in advance that the destination has been reached from the map information or to specify the area by the user. Alternatively, the map information of the current position (the map information of the current position and its surroundings) or the map information of a predetermined place (for example, a destination) is automatically or manually loaded into the RAM 7 or the external storage medium unit 11. In FIG. 1, G is assigned to each of the navigation device A and the main device B.
The PS antenna is connected or has a connector to which each is connected.
The antenna of the navigation device A is fixedly and storably connected to the navigation device A. Also, the connector 23 is removed from the navigation device A together with the connector 21,
The broadcasting unit C may be separated from the main unit B.

The portable telephone 9 is provided with a central processing unit 4.
In response to the instruction, connection is made to the communication connection destination stored in the RAM 7, data communication is performed, and positional information, character information, images, voices, and the like are transmitted and received. Communication interface unit 10
Detects the presence or absence of the connection of the mobile phone 9 and the type of the connected mobile phone 9, monitors the communication result of the transmitted / received data, and notifies the central processing unit 4 of the communication result.

FIG. 2 is a block diagram showing a function realizing means (a means realized by the CPU 4 executing a program stored in the ROM 6 or the external storage medium unit 11) in the central processing unit 4.

In FIG. 2, reference numeral 41 denotes an instruction judging means for judging whether or not an arbitrary point on the map displayed on the display unit 2 is indicated by a touch pen (screen operation tool), and 42 denotes a destination mark or the like. Display means 43; storage means for storing position data and the like in a memory such as the RAM 7; 44; drawing means for drawing a straight line between the current position and the destination;
Is a calculating means for calculating a straight line distance between the current position and the destination.

The operation of setting the current position of the car navigation apparatus thus configured will be described with reference to FIGS. FIG. 3 is a flowchart showing the current position setting operation, and FIGS. 4 and 5 are screen diagrams showing display screens in the current position setting operation.

In FIG. 3, first, the instruction determining means 41
Determines whether or not an arbitrary point on the map displayed on the display unit 2 is instructed (touched) by a touch pen as a screen operation tool (S1). When the process of step 3 is completed and it is determined that the instruction has been made, the display means 42 displays the cross cursor 30 (FIG. 4) at the point indicated (S2). The determination as to whether or not an instruction has been made in step S1 is made based on whether or not the coordinates of the point indicated by the touch pen are coordinates on the map. Next, the display means 42 displays a point setting menu (S3). This is shown in FIG. Next, the instruction determination unit 41 determines whether "this location is the current location" is instructed (that is, whether the entry of "this location is the current location" is touched with the touch pen) (S4). When it is determined that the instruction has been given, the display means 42 displays the current location mark 31 as shown in FIG. 5 (S5). Next, the storage unit 43 stores the location of the current location mark 31 designated by the instruction determination unit 41 as the current location in the RAM 7 (S6), and finally, the display unit 42 displays the location setting menu shown in FIG. Erase is performed as shown (S7). If "this location is the current location" is not touched by the touch pen in step S4, another processing operation is performed (S8).

Next, the destination setting operation of the car navigation device shown in FIG. 1 will be described with reference to FIGS. FIG. 6 is a flowchart showing the destination setting operation, and FIG. 7 is a screen diagram showing a display screen in the destination setting operation.

In FIG. 6, first, the instruction determining means 41
Determines whether or not an arbitrary point on the map displayed on the display unit 2 has been instructed (touched) by a touch pen as a screen operating tool (S11). When the process of step 6 is completed and it is determined that the instruction has been made, the display means 42 displays a cross cursor (see the cursor 30 in FIG. 4) at the point indicated (S).
12). The determination as to whether or not the instruction has been made in step S11 is made based on whether or not the coordinates of the point indicated by the touch pen are coordinates on the map. Next, the display means 42 displays a point setting menu (see FIG. 4) (S13).
Next, the instruction determination unit 41 determines whether “go here” has been instructed (ie, whether the entry of “go here” has been touched with the touch pen) (S14), and determines that the instruction has been made. The display means 42 displays the destination mark 33 as shown in FIG.
Is displayed (S15). In FIG. 7, reference numeral 32 denotes a current location mark which has been set and displayed. Next, the storage means 43 stores the location of the destination mark 33 as a destination in the RAM.
7 (S16). Next, the drawing means 44 draws a straight line between the current position and the destination (S17), and the calculating means 4
5 calculates the linear distance between the current position and the destination (S1)
8). Note that the current location in FIG. 7 is the current location obtained from the GPS (position data generation unit) 5 or the instruction determination unit 4.
This is the current location as an arbitrary point designated by 1.
Finally, the display means 42 deletes the point setting menu as shown in FIG. 7 (S19). If "go here" is not touched by the touch pen in step S14, another processing operation that has been touched is performed (S20).

As described above, according to the present embodiment, the central processing unit 4 issues an instruction to determine whether or not an arbitrary point on the map displayed on the display unit 2 has been indicated by a screen operating tool such as a touch pen. By having a determination unit 41 and a storage unit 43 that stores the specified point as a current position in a memory such as the RAM 7 when the instruction determination unit 41 determines that an arbitrary point is specified by the instruction determination unit 41, Since an arbitrary point can be designated as the current position, the current position can be displayed by a mark or the like even when the position data cannot be acquired by the position data generator 5, and therefore, the direction from the current position to the destination and the destination can be indicated. The distance to the device can be displayed.

The central processing unit 4 further includes an instruction determining unit 41 for determining whether or not an arbitrary point on the map displayed on the display unit 2 is indicated by a screen operating tool such as a touch pen.
When the instruction determining means 41 determines that an arbitrary point is designated, a display means 42 for displaying a destination mark at the designated arbitrary point, and a storage means 43 for storing the designated point as a destination. And the current position or instruction determining means 4 obtained from a position data generating unit 5 such as a GPS.
By having a drawing means 44 for drawing a straight line between the current position as the arbitrary point designated by 1 and the destination, an arbitrary point on the map is designated as the destination, and the designated destination Since it is possible to draw a straight line from the current position, the direction from the current position to the destination can be displayed.

Further, since the central processing unit 4 has the calculating means 45 for calculating the linear distance between the current position and the destination, the central processing unit 4 can calculate the linear distance between the current position and the destination. The distance from the current position to the destination can be displayed by a numerical value or the like.

In the present embodiment, the navigation device A acquires map information from the map information supply media unit 19 of the main unit. However, the map information is acquired from an Internet site server or the like via the mobile phone 9. Is also good. In this case, a server or the like corresponds to the main device in terms of supplying the map information.

[0033]

As described above, according to the navigation apparatus of the first aspect of the present invention, the navigation apparatus having the storage media means for receiving and storing the map information from the main apparatus having the map information supply means. Wherein the navigation device is a central processing unit that controls the whole,
An operation unit, and a display unit, wherein the central processing unit includes an instruction determination unit that determines whether an arbitrary point on the map displayed on the display unit is instructed by the operation unit; When it is determined that a point has been designated, by having storage means for storing the designated point as a current position in a memory such as a RAM, it is possible to designate an arbitrary point on the map as the current position. Even when the position data cannot be obtained by the position data generation unit, the current position can be displayed by a mark or the like, and therefore, an advantageous effect that the direction from the current position to the destination, the distance from the destination, and the like can be displayed. Is obtained.

According to a second aspect of the present invention, there is provided a navigation apparatus including a storage medium unit for receiving and storing map information from a main unit having a map information supply unit. A central processing unit for controlling, an operation unit, and a display unit, wherein the central processing unit has an instruction determination unit that determines whether an arbitrary point on the map displayed on the display unit is instructed by the operation unit. Display means for displaying a destination mark at an arbitrary point designated when an arbitrary point is designated by the instruction determination means, storage means for storing the designated point as a destination, Drawing means for drawing a straight line between the current position acquired from a position data generation unit such as a GPS or an arbitrary point designated by the instruction determination means and the current position and the destination By having an arbitrary point on the map as a destination, and drawing a straight line between the specified destination and the current location, it is possible to display the direction from the current location to the destination. The advantageous effect that it can be obtained is obtained.

According to the navigation device of the third aspect, in the navigation device of the second aspect,
The central processing unit can calculate the straight-line distance between the current location and the destination by providing the calculation means for calculating the straight-line distance between the current location and the destination. An advantageous effect that the distance can be displayed by a numerical value or the like can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a car navigation device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing function realizing means in the central processing unit.

FIG. 3 is a flowchart showing a current location setting operation.

FIG. 4 is a screen diagram showing a display screen in a current location setting operation.

FIG. 5 is a screen diagram showing a display screen in a current location setting operation.

FIG. 6 is a flowchart showing a destination setting operation.

FIG. 7 is a screen diagram showing a display screen in a destination setting operation.

[Explanation of symbols]

 Reference Signs List 1 operation input unit 2 display unit 3 screen operation unit (touch panel) 4 central processing unit (CPU) 5, 17 GPS unit (position data generation unit) 6 ROM unit 7 RAM unit 8 secondary battery unit 9 mobile phone 10 communication interface Unit (communication I / F unit) 11 External storage media unit 12 TV tuner unit (TV unit) 13 FM receiving unit (FM unit) 14, 16 Audio output unit 15a, 16a Speaker 15b Handset 18 Power supply unit 19 Map information supply media unit Reference Signs List 20 Gyro 21, 22, 23, 24 Connector 25 Light receiving unit 26 Parking brake sensor unit 30 Cross cursor 31, 32 Current location mark 33 Destination mark 41 Instruction determination unit 42 Display unit 43 Storage unit 44 Drawing unit 45 Calculation unit A Navigation device (Separation unit) B Main unit (station ) C Broadcasting AT1, AT3 GPS antenna AT2 antenna

Continued on the front page F term (reference) 2C032 HB02 HB05 HB22 HB23 HB25 HC08 HC13 HD03 HD29 2F029 AA02 AA07 AB01 AB07 AC02 AC09 AC14 AC16 5H180 AA01 AA21 BB02 BB04 BB05 BB08 BB13 CC12 FF05 FF22 FF27 FF32

Claims (3)

[Claims] 1. A navigation device comprising storage media means for receiving and storing map information from a main device having a map information supply means, the navigation device comprising: a central processing unit for controlling the whole; And a display unit, wherein the central processing unit includes: an instruction determination unit configured to determine whether an arbitrary point on a map displayed on the display unit is instructed by the operation unit; and the instruction determination unit. A navigation unit for storing the specified point as a current location in a memory such as a RAM when it is determined that the specified point is specified; 2. A navigation device comprising storage media means for receiving and storing map information from a main device having a map information supply means, the navigation device comprising: a central processing unit for controlling the whole; And a display unit, wherein the central processing unit includes: an instruction determination unit configured to determine whether an arbitrary point on a map displayed on the display unit is instructed by the operation unit; and the instruction determination unit. Display means for displaying a destination mark at the designated point when it is determined that the given point is designated; storage means for storing the designated point as a destination; GPS, etc. Drawing means for drawing a straight line between the current position obtained from the position data generating unit or the current position as an arbitrary point designated by the instruction determination means and the destination; Navigation apparatus characterized by having. 3. The navigation device according to claim 2, wherein the central processing unit includes a calculating unit that calculates a straight-line distance between the current location and the destination.