JP2000055688A - On-vehicle navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device loaded in a vehicle setting an appropriate rest point on the way of traveling and calculating a time required for traveling considering a rest time. SOLUTION: In the navigation device, a recommendation route from a present position determined by its own vehicle position operation device and an optional departure point on a map in an indicating device inputted by an inputting device to a destination on a map in the indicating device inputted by the inputting device is calculated and indicated on the indicating device. In this case, a rest point is set on the way of traveling at every prescribed time or at every prescribed distance during traveling (S16) and a required time for traveling to the destination while resting at the rest point for a predetermined time is calculated. The rest point or the required time is indicated on the indicating device or is outputted as a voice from a sound outputting device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle navigation device, and more particularly to an in-vehicle navigation device that calculates a recommended route from a departure point to a destination and displays the calculated route on a display device. The present invention relates to an in-vehicle navigation device in which a break point is automatically set.

[0002]

2. Description of the Related Art From a current position obtained by a vehicle position calculating device or an arbitrary starting point on a map on a display device input by an input device, a destination on a map on the display device input by the input device, or 2. Description of the Related Art There is known an in-vehicle navigation device that calculates a recommended route to a destination facility searched by an information search process and displays the calculated route on a display device.

When calculating a recommended route, a route in which the distance of the recommended route is the shortest based only on the road distance or a route in which the time is shortest based on the operation time according to the road type and the distance are obtained. Can be

[0004] In such a conventional on-vehicle navigation device, an outline of an operation when a destination is set by an input device will be described with reference to FIG. First, in step S1, when a destination is set by the input device, the process proceeds to step S2, and whether or not to perform a route search and setting of search conditions for the search are performed.

Next, in step S3, it is determined whether or not the route search has been set. If the route search has been set, the process proceeds to step S4, and if not, the routine ends.

In step S4, a route is searched for a predetermined distance over the set condition, and the process proceeds to step S5. In step S5, it is determined whether or not the route search has been completed. If the search has been completed, the process proceeds to step S6, and if not, step S4 is repeated. Step S
In step 6, the required time in the operation of the searched route is calculated, the required time is displayed on the display device, and this routine ends.

[0007]

In the above-mentioned conventional on-vehicle navigation device, a recommended route is searched for along the entire route to the destination, but a break point is not designated in the recommended route. On the other hand, there is a problem that the calculated required time does not match the actual situation because it is necessary to take a break in the middle of a long operation. In addition, there is a safety problem such as driving unreasonably because an appropriate break point is not instructed during operation.

The present invention has been made in view of the above points, and has as its object to set an appropriate resting point in the course of operation and to calculate the time for an operation station taking into account the resting time. It is to provide an in-vehicle navigation device.

[0009]

An on-vehicle navigation device according to the present invention uses an input device to input a current position determined by a vehicle position calculation device or an arbitrary starting point on a map on a display device input by an input device. In a vehicle-mounted navigation device that calculates a recommended route to a destination on a map on the displayed display device and displays the calculated route on the display device,
Set a break point at regular intervals or at regular intervals during the recommended route, calculate the time required to travel to the destination while resting at the break point for a predetermined time, and display the break point or the required time It is configured to be displayed on a device or output as voice to a voice output device.

[0010] Further, in the above-mentioned on-vehicle navigation device, the rest point can be set by time or distance, and the set time and distance can be designated by an input device. Such a configuration improves usability.

Further, in the vehicle-mounted navigation device according to the present invention, in each of the vehicle-mounted navigation devices, the type of the rest point can be selected from any item included in the map database. Service points and parking areas will be selected for express points on expressways, but scenic spots on general roads,
Stations, family restaurants, etc., can be selected from any items included in the map database. The items need not be limited to one type.

[0012] Further, in each of the above-mentioned on-vehicle navigation devices, the break time at the break point can be arbitrarily set by an input device. With such a configuration, it is possible to operate according to the user's preference.

[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 composed of a microcomputer or the like, which controls the entire apparatus and calculates a recommended route from a departure place to a destination.

Reference numeral 2 denotes an own-vehicle position processing device, which comprises an autonomous navigation sensor 2a such as a speed sensor and a direction sensor, a GPS (global positioning, system) receiver 2b, and an own-vehicle position calculating device 2c. Calculation is performed and the data is output to the main controller 1.

The map database 3 is composed of a CD-ROM or the like, and stores map data and data on service areas and parking areas on expressways, scenic spots on general roads, stations, family restaurants, and the like. The recording medium reading device 4 reads map data of an area designated by the main controller 1 from the map database 3 and supplies the map data to the main controller 1. The main storage memory 5 stores map data and other data supplied from the main controller 1.

The input device 6 comprises a key or a remote controller, and performs initial settings such as a current position and a destination before using the device, and starts the device. The video processing device 7 includes a graphic controller 7a, a video RAM 7b, and a display device 7c. The graphic controller 7a develops and stores the map screen data calculated by the main controller 1 from the map data and the recommended route data calculated by the main controller 1 in the video RAM 7b, and stores the map screen data in the RAM 7b on a display device 7c such as an LCD. Display.

An outline of the operation when the destination is set by the input device in the on-vehicle navigation device having the above configuration will be described with reference to FIG. First, in step S10, when a destination is set by the input device, the process proceeds to step S11 to determine whether or not to perform a route search.
Then, search conditions for the search are set.

Next, in step S12, it is determined whether or not the route search has been set. If the route search has been set, the process proceeds to step S13, and if not, the routine ends.

In step S13, a route is searched for a predetermined distance over the set conditions, and the process proceeds to step S14. In step S14, it is determined whether or not the route search has been completed. If the search has been completed, the process proceeds to step S17. If not, the process proceeds to step S15.

In step S15, it is determined whether or not a predetermined time or a fixed distance (depending on the set conditions) has been searched from the departure position or the set rest point. If a search has been made, the process proceeds to step S16, where no search has been performed. In this case, step S13 is repeated. In step S16, a first break point is searched for in the traveling direction to set a break point, and the process proceeds to step S13.

In step S17, the operation time including the rest time at the break point in the operation of the searched route is calculated, the operation time is displayed on the display device, and this routine is ended.

When the recommended route and the rest point are set as described above, the own vehicle position and the recommended route are displayed at the time of guidance, and the rest point is also displayed at the same time. Note that a voice output device may be provided to notify the user by voice when approaching the break point.

In the embodiment, a break point is set when a predetermined distance or a predetermined time is exceeded.
When there is a place suitable for a break a little before a certain distance or beyond a certain time, and there is no place suitable for a break first, it may be better to set a break place before this.
Therefore, as a general rule, a break point is set ahead when a certain distance or a certain time is exceeded. A suitable place may be set as a break point.

[0024]

According to the on-vehicle navigation device of the present invention, the driver can take a break at an appropriate place even in the first place, and does not need to worry about the rest. Thereby, safe driving is performed. In addition, the service station time is accurately calculated.

[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 the operation of a conventional vehicle-mounted navigation device.

[Explanation of symbols]

Reference Signs List 1 main controller 2 own vehicle position processing device, 2a autonomous navigation sensor, 2b
GPS receiver, 2c own vehicle position calculation device 3 Map database 4 Recording medium reading device 5 Main storage memory 6 Input device 7 Image processing device, 7a Graphic controller,
7b video RAM, 7c display device

Claims (4)

[Claims] 1. A recommendation from a current position obtained by a vehicle position calculation device or an arbitrary starting point on a map on a display device input by an input device to a destination on a map on a display device input by an input device. In an in-vehicle navigation device that calculates a route and displays it on a display device, a break point is set at a certain time or a certain distance during operation on the recommended route, and the vehicle travels to the destination while taking a break at the break point for a predetermined time. An on-vehicle navigation device configured to calculate a required time at the time, display the break point or the required time on a display device, or output it as a voice to a voice output device. 2. The in-vehicle navigation device according to claim 1, wherein the rest point is set by time or distance, and the set time and distance can be designated by an input device. 3. The in-vehicle navigation device according to claim 1, wherein the type of said rest point can be selected from any item included in a map database. 4. The in-vehicle navigation device according to claim 1, wherein a rest time at the rest point can be arbitrarily set by an input device.