JPH11125530A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent erroneous recognition by a location registration mark registered erroneously, by detecting whether or not a display means is housed, and by invalidating location registration operation by a location registration switch only when housing of the display means is detected. SOLUTION: When a display driving part is in housed state, since the rear end of a self-traveling body 34 is pressing a housing switch 49, the housing switch 49 outputs an ON state. At this time, since it is detected that a liquid crystal display 31 is in a housed state by the housing switch 49 in a system control part, control is made so that location registration operation by a location registration switch may be invalidated. As a result, accidental location registration operation when a screen of the liquid crystal display 31 is housed can be prevented. In addition, when a rotation axis 33 moves in a guide groove 45, the liquid crystal display 31 rotates so that its display screen faces the inside of a vehicle. Further, if the self-traveling body 34 travels in a case 43 together with the liquid crystal display 31, the display screen of the display 31 is rotated and set in a discharging state to turn on a discharge switch 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device, and more particularly, to a navigation device capable of registering a current position of a vehicle and displaying the registered position on map information.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a navigation device in which a display unit 109 is arranged on an instrument panel in a vehicle compartment and an operation input unit 107 is arranged on a cluster lid is known. I have.

[0003] In this navigation device, an OPEN / CLOSE switch 111 of an operation input unit 107 shown in FIG.
Is pressed, the display unit 109 is driven so as to be in a discharge state. Next, when the OPEN / CLOSE switch 111 is pressed, the display unit 109 is driven to be housed in the instrument panel. I have.

When the display unit 109 is housed in an instrument panel, the display screen is switched to a sweep mode to save power. in this case,
OPEN / CLOSE switch 11 of the operation input unit 107
When the user presses 1 to put the display unit 109 in the discharge state, a map around the current position is immediately displayed on the display unit 109. For this reason, even when the display unit 109 is in the housed state, the detected current position is always corrected by performing a map matching process or the like, thereby improving the detection accuracy of the current position.

[0005]

However, when the display unit 109 is housed in the instrument panel, the system of the navigation device itself is in a power-off state for a passenger who has no prior knowledge of the navigation device. Was thought to be.

For this reason, when the display unit 109 is stored in the instrument panel and the passenger inadvertently presses the point registration switch 113 of the operation input unit 107, the current position at that time is changed to the navigation. It was registered in the memory section of the device. As a result, there is a problem that the carelessly registered point registration marks are scattered on the map being displayed and are mistaken for the point registration marks that have been intentionally added.

[0007] The present invention has been made in view of the above,
An object of the present invention is to provide a navigation device that can prevent an inadvertent location registration operation when the screen is stored and can prevent erroneous recognition due to a location registration mark that is erroneously registered as in the related art. is there.

[0008]

According to the first aspect of the present invention,
In order to solve the above-mentioned problems, a navigation device having a display screen capable of displaying a map and having a display means capable of discharging and storing, and a point registration switch for registering a current position of the vehicle at the time of operation as a registration point is provided. ,
A storage state detection means for detecting whether or not the display means is stored, and a point registration operation by the point registration switch only when the display means is detected to be in a storage state by the storage state detection means. And a control means for performing control to invalidate the control.

[0009]

According to the first aspect of the present invention, the screen is controlled by invalidating the point registration operation by the point registration switch only when the display means is detected to be in the housed state. It is possible to prevent an inadvertent point registration operation at the time of storage, and it is possible to prevent erroneous recognition due to a point registration mark erroneously registered as in the related art.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a system configuration of a navigation device 1 according to one embodiment of the present invention. In the figure, GPS (Global Positioning System)
m) The receiver 3 is a receiver for measuring a current position represented by latitude and longitude and an azimuth based on a radio wave from a satellite received via an antenna, and is measured by the GPS receiver 3. The current position data is supplied to the system control unit 5.

The system control unit 5 has a timer for measuring the current date and time, and controls the entire apparatus according to a predetermined control program stored in a ROM in the memory unit 17.
The ROM stores an execution program corresponding to the navigation function, control data, and the like. The vehicle speed sensor 7 detects the traveling speed of the vehicle by generating a pulse signal corresponding to the number of revolutions of the mission by a rotary encoder provided in the mission. Azimuth angle sensor 9
Detects the azimuth by incorporating a geomagnetic sensor or a gyroscope.

The CD-ROM drive 11 is a CD-RO drive.
M has a drive mechanism for driving M, and the latitude and longitude recorded on a CD-ROM or a format similar thereto (hereinafter, referred to as
It is a device that drives and reads map data representing a position using map coordinates. The map data recorded in the CD-ROM drive device 11 is sent to the system control unit 5 using a transmission method such as serial communication or parallel communication. The display control unit 13 exchanges image data between the system control unit 5 and the VRAM unit 15, draws image data, stores the image data in the VRAM unit 15, and stores the image data in the VRAM unit 15.
The image data stored in the RAM unit 15 is read out at the display rate and displayed on the display unit 109. VRAM (Video Ra
The ndom access memory) unit 15 develops and stores map data and traffic congestion section data that can be displayed on the display unit 109.
The display unit 109 has a liquid crystal display panel or the like, and displays the display data created by the display control unit 13.

The screen touch panel unit 21 includes a display unit 109
And a device for inputting position data when there is a contact in association with a position on the screen. The screen touch panel unit 21 inputs the touch of the fingertip by the operator as position data using a well-known system such as an electronic system, an electrostatic system, or an optical system.
Further, by displaying operation guide information on the display unit 109 and touching a desired part on the screen touch panel unit 21, for example, destination data required for a route search is input.

The operation input unit 107 is a group of switches that are arranged on the cluster lid in the vehicle compartment and that input a switch operation by a passenger. As shown in FIG. 7, the point registration switch 113 sets a current position of the vehicle and a point indicated by scrolling on the displayed map as a registration point. OPEN / CLOSE switch 111
Is an operation switch for driving the display unit 109 to be in the discharge state or the storage state. In addition, the display drive unit 23 drives the display unit 109 to be in a discharge state or a storage state according to an operation of the OPEN / CLOSE switch 111.

Next, an exploded view of the display drive unit 23 shown in FIG. 2, a top sectional view of the display drive unit 23 shown in FIG. 3, and an operation state diagram of the display drive unit 23 shown in FIG. 2
3 will be described. The display drive unit 23 is configured as shown in FIG.
As shown in the exploded view shown in FIG.
A liquid crystal display (LCD: Liquid Crystal Display) 31 employing an FT liquid crystal panel (wide color screen);
A self-propelled body 34 self-propelled in a case 43 while rotatably supporting the liquid crystal display 31, and a case 43 for rotating the liquid crystal display 31 in accordance with the longitudinal movement of the self-propelled body 34. ing.

As shown in the top sectional view of FIG. 3, the display drive unit 23 includes a motor 35 provided in the self-propelled body 34 and rotating in the forward and reverse directions, and a deceleration for reducing the rotational speed of the motor 35. The gear 37 and the case 4 according to the rotation after the deceleration
3, running gears 39a and 39b meshing with racks 47a and 47b provided in the rack 3, and guides 46a and 46b for rotating the liquid crystal display 31 moved back and forth.
It is composed of

The operation of the display driver 23 will now be described with reference to the operation state diagram shown in FIG. The display driving unit 2
3 is controlled by the system control unit 5.
Further, the display drive unit 23 has a storage switch 49 for detecting whether the liquid crystal display 31 is in the storage state, and a discharge switch 51 for detecting whether the liquid crystal display 31 is in the discharge state. .

First, as shown in FIG. 4A, the display drive unit 23 is in a housed state. In this case, since the rear end of the self-propelled body 34 is pressing the storage switch 49, the storage switch 49 outputs an ON state. At this time,
In the system control unit 5, since the storage switch 49 detects that the liquid crystal display 31 is in the storage state, the system control unit 5 controls so that the point registration operation by the point registration switch 113 is invalidated. As a result, the liquid crystal display 3
It is possible to prevent an inadvertent point registration operation when the first screen is stored, and to prevent erroneous recognition due to a point registration mark erroneously registered as in the related art.

Here, when the OPEN / CLOSE switch 111 provided on the operation input unit 107 shown in FIG. 7 is pressed, the system control unit 5 outputs a discharge instruction signal to the display drive unit 2.
3 and the motor 35 starts rotating in the forward direction.
The rotation of the motor 35 is reduced by the reduction gear 37 and transmitted to the traveling gears 39a and 39b. Furthermore, traveling gear 3
9a and 39b mesh with the racks 47a and 47b, so that the racks 47a and 39b rotate in accordance with the rotation of the traveling gears 39a and 39b.
The self-propelled body 34 travels in the case 43 together with the liquid crystal display 31 as a result.

At this time, as shown in FIG. 2, the rotating shaft 33 provided on the liquid crystal display 31 is loosely fitted to shaft holes 41a and 41b provided on the self-propelled body 34 so as to be slidable in the vertical direction. Further, as shown in FIG. 4, since it is loosely fitted in the guide groove 45, it moves forward as shown in FIG. 4 (b).

As shown in FIG. 4 (b), the liquid crystal display 31 has a lid 55b provided on the liquid crystal display 31 and a rotating plate 57 provided on the case 43 so as to be rotatable in a direction perpendicular to the plane of the drawing. When the rotating shaft 33 moves in the guide groove 45 because it is supported, the display screen is rotated so as to gradually turn its display screen into the vehicle interior. At this time, the storage switch 49 and the ejection switch 51 are off.

Further, the self-propelled body 34 is connected to the liquid crystal display 3.
4C, the display screen of the liquid crystal display 31 is rotated and set to a discharge state, and at the same time, the discharge switch 51 is set by the front end of the self-propelled body 34, as shown in FIG. Is pressed, the discharge switch 5
1 is turned on. Next, when the discharge switch 51 is turned on, the system control unit 5 outputs a traveling stop signal to stop the forward traveling of the self-propelled body 34 to the display driving unit 23.
And the rotation of the motor 35 is stopped.

On the other hand, when the OPEN / CLOSE switch 111 provided on the operation input unit 107 shown in FIG. 7 is pressed, the system control unit 5 displays a display start signal to cancel the sweep state of the display unit 109. Output to the unit 13. Normally, when the display unit 109 is in the stowed state,
The current position detected by the PS receiver 3 is constantly corrected by applying a map matching process or the like to improve the detection accuracy of the current position. Therefore, when the sweep state is released, a point is immediately registered in a map around the current position. Display unit 1 with mark
09 can be displayed on the liquid crystal display 31.

Next, the operation of the navigation device 1 will be described with reference to the flowchart shown in FIG. First, in step S10, it is detected whether or not the display screen of the display unit 109 is in a discharge state. That is, as shown in FIG. 4C, the display screen of the liquid crystal display 31 is in the discharge state, the discharge switch 51 provided in the case 43 is pressed by the front end of the self-propelled body 34, and the discharge switch 51 is turned on. It is determined whether or not it is on. Discharge switch 5
If 1 is on, the process proceeds to step S20, while if the discharge switch 51 is not on, the process returns to step S10 and repeats this process.

Next, in step S20, it is determined whether or not the passenger has pressed the point registration switch 113 of the operation input unit 107 to be turned on. When the point registration switch 113 is pressed and turned on, the process proceeds to step S30, and when the point registration switch 113 is not pressed, the process returns to step S10. Next, step S
At 30, the point registration switch 113 is pressed and turned on, so that the following point registration processing is performed. First, the current position data measured by the GPS receiver 3 is taken into the system control unit 5. Next, the system control unit 5 stores the current position data in the memory unit 17. At this time, the current date and time data read from the timer is added to the current position data and stored in the memory unit 17. next,
Returning to step S10, the above processing is repeated.

As a result, the current position data that is valid only when the passenger performs the point registration operation is stored in the memory unit 17. Further, the points around the current position among the points already registered in the memory unit 17 can be displayed on the map information. For example, the user arrives at a frequently used “convenience store” or “gas station”. If a point is registered at a point in time, only such useful points can be displayed.

As shown in FIG. 4A, the storage switch 49 indicates that the liquid crystal display 31 is in the storage state.
Only when detected by the location registration switch 113
Is controlled by the system control unit 5 so as to invalidate the point registration operation by the user, it is possible to prevent an inadvertent point registration operation when the screen of the liquid crystal display 31 is housed. Erroneous recognition by the point registration mark can be prevented.

[Brief description of the drawings]

FIG. 1 is a diagram showing a system configuration of a navigation device 1 according to an embodiment of the present invention.

FIG. 2 is an exploded view of the display driving unit 23.

FIG. 3 is a top cross-sectional view of the display drive unit 23.

FIGS. 4A and 4B are a storage state diagram (a), an intermediate state diagram (b), and a discharge state diagram (c) showing an operation state of the display drive unit 23. FIGS.

FIG. 5 is a flowchart for explaining the operation of the navigation device 1.

FIG. 6 is a diagram in which a conventional navigation device is arranged in a vehicle cabin.

FIG. 7 shows an operation input unit 107 of a conventional navigation device.
It is.

[Explanation of symbols]

 5 System control unit 31 Liquid crystal display 49 Storage switch 113 Point registration switch 113

Claims (1)

[Claims] 1. A navigation device comprising: a display means having a display screen capable of displaying a map and capable of discharging and storing; and a point registration switch for registering a current position of the vehicle at the time of operation as a registered point. A storage state detection means for detecting whether or not the display means is stored; and a point registration operation by the point registration switch is invalidated only when the storage state detection means detects that the display means is in the storage state. Control means for controlling the navigation apparatus to perform the following operations: