JP2002031537A - On-vehicle navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle navigation device capable of being efficiently operated when a vehicle waits for a signal to turn green. SOLUTION: The on-vehicle navigation device displays a map screen or both the map screen and a mark of one's own vehicle on a display device according to the current position determined by a processing device for the one's own vehicle position and to map data read by a storage medium reading device, and calculates and displays a recommended route from a departure point to a destination. The navigation device is provided with a means for detecting the drive and stop of the vehicle, and when the vehicle starts to travel from a stopped state, the condition of the device during the stop and the display screen (a) are temporarily retracted and the device performs current position displaying action (b). At the next stop of the vehicle, the device condition and the display screen (c) retracted can be restored.

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 vehicle-mounted navigation device which is easy to use when the vehicle frequently stops for a considerable time due to a signal or the like.

[0002]

2. Description of the Related Art An on-vehicle navigation device for displaying a map screen or a position of a vehicle on a map screen on a display device based on a current position obtained by a vehicle position processing device and map data read by a recording medium reading device, and guiding the vehicle to travel. It has been known.

[0003] In such a vehicle-mounted navigation device, the operation during traveling is limited in order to avoid the risk of operation during traveling. An example is shown in FIG.
When the vehicle starts traveling during the operation on the operation screen of FIG.
In some cases, the display changes to the current location display as shown in FIG. 6B, and the current location display remains as shown in FIG.

[0004] When the vehicle starts running while operating on the operation screen shown in Fig. 7A, the screen does not change as shown in Fig. 7B, and only a minimum operation such as returning to the current location screen can be performed. Some of them have become. The detection signal of traveling / stop was obtained from an ON / OFF signal of a parking switch, a vehicle speed sensor, and the like.

[0005]

In the conventional on-vehicle navigation apparatus described with reference to FIG. 6, when a signal is stopped and an operation such as selecting a menu and setting a destination is performed, a signal is generated. When the vehicle changes from red to blue, the display changes to the current location display. Therefore, when performing an operation at the next stop, the user must return to the first operation screen and repeat the same operation, which is a waste of time.

[0006] When the traffic light changes from red to blue while the traffic congestion information or the like is being checked at the signal waiting time and the vehicle is driven,
When the display screen changes to the current location display and you try to check the next time you stop at a signal, etc., you can not check the continuation unless you specify the menu from the beginning and operate it again, which makes the operation cumbersome and wastes time. Had become.

[0007] In the conventional on-vehicle navigation device described with reference to FIG. 7, when the vehicle is driven, the screen remains the same, the current position is not known depending on the screen, and the intersection enlarged guide map is not displayed. Therefore, when the screen is changed to the current location screen, the above-described problem occurs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an in-vehicle navigation device capable of efficiently performing operations such as waiting for a traffic light.

[0009]

According to the present invention, an on-vehicle navigation device according to the present invention uses a map screen or a map screen together with a map screen or a map screen on a display device based on a current position obtained by a vehicle position processing device and map data read by a recording medium reading device. In the in-vehicle navigation device that displays the position mark, calculates a recommended route from the departure point to the destination, and displays the calculated route, a means for detecting the running / stop of the vehicle is provided, and the vehicle starts running from a stop. Sometimes the state of the stopped device and the display screen are temporarily evacuated, and the current location display operation is performed,
When the vehicle stops next, it is possible to return to the state and display screen of the previously evacuated device.

In addition, the vehicle-mounted navigation device of the present invention displays a map screen or a vehicle position mark together with a map screen on a display device from the current position obtained by the vehicle position processing device and the map data read by the recording medium reading device. Further, a vehicle-mounted navigation device for calculating and displaying a recommended route from the departure point to the destination is provided with a means for detecting running / stopping of the vehicle. This is a display operation, and it is possible to display a preset display screen when the vehicle is stopped next time.

Further, the vehicle-mounted navigation device according to the present invention displays a map screen or a vehicle position mark together with the map screen on the display device from the current position obtained by the vehicle position processing device and the map data read by the recording medium reading device. Further, in a vehicle-mounted navigation device that calculates and displays a recommended route from the departure point to the destination, a means for detecting running / stop of the vehicle is provided, and a current position display screen or a preset The present screen displays a current display position when the vehicle starts traveling from that state, and enables a preset display screen to be displayed when the vehicle is stopped next time.

Further, the on-vehicle navigation device according to the present invention, in the on-vehicle navigation device, displays a screen other than the current position display screen or a preset display screen while the vehicle is stopped, and starts traveling from that state. When the vehicle is stopped, the current position display operation is performed, and the display screen before the start of traveling when the vehicle is stopped next time can be displayed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An on-vehicle navigation device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a vehicle-mounted navigation device according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a main controller including a microcomputer, a memory, and the like, which controls the entire apparatus.

Reference numeral 2 denotes an own-vehicle position processing device, which comprises a vehicle speed sensor 2a, a GPS (global positioning, system) receiver 2b, and a gyro device 2c, which calculates the own-vehicle position and outputs the data to the main controller 1. I do.

The recording medium reading device 3 reads map data of an area designated by the main controller 1 from a map database such as a CD-ROM or a DVD-ROM and supplies the data to the main controller 1.

The parking brake 4 outputs a parking brake ON / OFF signal to the main controller 1. The input device 8 includes a remote controller, keys, and the like, activates the device, sets a mode before or during use of the device, sets initial settings such as a departure place and a destination, and further instructs calculation of a recommended route. And so on. The optical / radio wave beacon receiving unit 6 and the FM multiplex broadcast receiving unit 7 obtain traffic information such as traffic congestion and supply it to the main controller 1.

The display device 5 includes a graphic controller,
It consists of a video RAM and a monitor. The graphic controller develops and stores in the video RAM the map screen data calculated by the main controller 1 from the map data, the vehicle position information obtained from the vehicle position processing device 2, and the recommended route data calculated by the main controller 1. To display on the monitor.

The user can set the above-configured on-vehicle navigation device in the following operation modes. In the first operation mode, when the vehicle starts traveling while operating on the operation screen of FIG. 6A, the display changes to the current position display as shown in FIG. 6B, and even if the vehicle stops afterward, as shown in FIG. At the current location display. In this mode, the same operation as that of the conventional in-vehicle navigation device is performed.

In the second operation mode, when the vehicle starts running while operating on the operation screen shown in FIG. 7A, the screen does not change as shown in FIG. You can only operate. In this mode, the same operation as in the conventional in-vehicle navigation device is performed.

In the third operation mode, when the vehicle starts traveling, the current screen information such as the screen in the middle of the operation as shown in FIG. 4 (a) is retracted to become the current location screen as shown in FIG. 4 (b). Fig. 4 shows that the vehicle has been stopped and evacuated at the start of driving.
The display returns to the screen information as shown in FIG.

In the fourth operation mode, when the vehicle starts traveling, the current position screen as shown in FIG. 5A is displayed, and when the vehicle is stopped, a screen specified in advance (for example, VI shown in FIG. 5B).
CS (Vehicle Information and Communication System)
m), etc., or a TV screen can be specified), and the vehicle runs again. The current location screen is displayed as shown in FIG.

In the fifth operation mode, when the vehicle starts traveling while the current position screen or the previously specified screen is displayed, the current screen is displayed, and when the vehicle is stopped, the previously specified screen is displayed.

Then, when the vehicle starts traveling while the screen is other than the current location screen or the screen designated in advance, the current location screen is displayed, and when the vehicle is stopped thereafter, the screen before traveling starts is displayed.

Next, the operation when the third operation mode is set will be described with reference to FIGS. FIG. 2 is a routine that is always executed when the apparatus is started,
When this routine is executed, first, in step S1, it is determined whether or not the output pulse of the vehicle speed sensor is equal to or more than a predetermined n pulses per second. If the output pulse is equal to or more than n pulses, the process proceeds to step S2. If so, the process proceeds to step S3.

In step S2, the stop flag is set to OFF, and the routine goes to step S4. In step S3, the stop flag is set to ON and the process proceeds to step S4. Step S4
Then, this routine is ended with the screen returned when the vehicle stops traveling as the current location screen. By setting the screen to return at the time of starting in this way, the screen to return to when the apparatus is stopped even when the apparatus is started during traveling is determined.

FIG. 3 shows a routine that is periodically executed after the start-up of the apparatus. When this routine is executed, first,
In step S10, it is determined whether or not the stop flag is ON. If the stop flag is ON, the process proceeds to step S11; otherwise, the process proceeds to step S15.

In step S11, it is determined whether or not the output pulse of the vehicle speed sensor is equal to or greater than a predetermined n pulses per second. If the output pulse is equal to or greater than n pulses, the process proceeds to step S12, and if not, the routine is terminated.

At step 12, the stop flag is set to OFF, and the routine goes to step S13. In step S13, the current screen information is saved, and the process proceeds to step S14. In step S14, this screen is set as the current position display screen, and this routine ends.

In step S15, it is determined whether or not the output pulse of the vehicle speed sensor is equal to or less than a predetermined m (<n) pulse for one second. If it is equal to or less than m pulses, the process proceeds to step S16. End the routine. In step S16, the stop flag is set to ON and step S17
Move to In step S17, the screen display is returned to the saved screen, and this routine ends.

When the vehicle starts traveling by executing the routine shown in FIGS. 2 and 3, the current screen information such as the screen in the middle of operation is saved to become the current location screen, and when the vehicle stops, the screen saved at the start of traveling is displayed. An operation to return to the information is performed. When the screen returns to the original state, the state of the apparatus also returns to the original state.

When the vehicle starts running while the main controller 1 is performing the route search calculation, the timing of screen switching may be delayed until the route search calculation is completed.

[0032] In addition, radios and VIs in which FM multiplex broadcasting can be viewed.
When a page with CS is displayed, the program may not be received when the vehicle stops running, or the screen may be used to select a program when switching to another broadcast station, or the current location display screen may be used. .

The setting of each of the above-mentioned operation modes is set to a predetermined value at the time of shipment from the factory, but the user can set any operation mode thereafter.

The embodiment is configured as described above.
The present invention is not limited to this. For example, instead of detecting traveling / stopping with a vehicle speed sensor, the traveling / stop may be detected by a parking brake signal or an engine on / off signal.

[0035]

According to the on-vehicle navigation apparatus of the present invention, when the vehicle stops, the screen is automatically changed to a preset screen such as a traffic information screen, so that the information can be easily confirmed.

Further, since it is not necessary to operate the menu until the operation at the time of the previous stop, the operation such as the route search can be performed within a limited time.

That is, it is not necessary for the user to perform extra operations, to obtain necessary information, and to spend time on operations such as route search.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an in-vehicle navigation device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the on-vehicle navigation device.

FIG. 3 is a flowchart showing another operation of the in-vehicle navigation device.

FIG. 4 is a diagram showing an example of a display screen of the on-vehicle navigation device.

FIG. 5 is a diagram showing another example of the display screen of the on-vehicle navigation device.

FIG. 6 is a diagram showing an example of a display screen of a conventional in-vehicle navigation device.

FIG. 7 is a diagram showing another example of a display screen of a conventional in-vehicle navigation device.

[Explanation of symbols]

1 main controller 2 own vehicle position processing device, 2a vehicle speed sensor, 2b G
PS receiver 2c Gyro device 3 Recording medium reading device 4 Parking brake detecting device 5 Display device 6 Optical / radio beacon receiving unit 7 FM multiplex broadcast receiving unit 8 Input device

Claims (4)

[Claims] 1. A map screen or a vehicle position mark is displayed together with a map screen on a display device from a current position obtained by a vehicle position processing device and map data read by a recording medium reading device. In the in-vehicle navigation device that calculates a recommended route to and displays it, a means for detecting running / stop of the vehicle is provided,
When the vehicle starts running from a stop, the status and display screen of the stopped device are temporarily evacuated, the current location display operation is performed, and when the vehicle is stopped next time, the status and display screen of the previously evacuated device can be returned. In-vehicle navigation device. 2. A map screen or a vehicle position mark is displayed together with a map screen on a display device based on the current position obtained by the vehicle position processing device and the map data read by the recording medium reading device. In the in-vehicle navigation device that calculates a recommended route to and displays it, a means for detecting running / stop of the vehicle is provided,
An in-vehicle navigation device which, when running from a stop, performs a current position display operation, and can display a preset display screen when the vehicle stops next. 3. A vehicle screen or a vehicle position mark is displayed together with the map screen on the display device based on the current position obtained by the vehicle position processing device and the map data read by the recording medium reading device. In the in-vehicle navigation device that calculates a recommended route to and displays it, a means for detecting running / stop of the vehicle is provided,
The current position display screen or a preset display screen is displayed while the vehicle is stopped, and when the vehicle starts traveling from that state, the current position display operation is performed, and when the vehicle is stopped next, the preset display screen is displayed. In-vehicle navigation device that enables 4. A current position display screen or a screen other than a preset display screen is displayed while the vehicle is stopped. When the vehicle starts traveling from that state, the current position display operation is performed. 4. The in-vehicle navigation device according to claim 3, wherein a display screen before the start is displayed.