JP2012202892A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device in which, when a guide route to a destination is searched for and meteorological information on the destination or scheduled traveling points is acquired, road conditions of the destination or scheduled traveling points are determined, and if it is determined that there is a problem, another new destination is also searched for, thereby improving the convenience for a user.SOLUTION: A navigation device 10 includes a current position detection unit 20, a map data storage unit 21, a destination setting unit 22, an information acquisition unit 23 that acquires and stores meteorological information, a route search unit 24, an arrival time calculation unit 25, a road condition determination unit 26, a re-search unit 27, a control unit 28, and a display unit 29.

Description

  The present invention relates to a navigation device and a navigation system.

  The conventional navigation device detects the current position by the current position acquisition unit, searches for the destination from the search data stored in the map data storage unit, and displays the guidance route from the detected current position to the destination on the display unit. It is configured to display.

  In recent years, there has been known one that obtains weather information of a destination or a planned travel point, displays road conditions predicted from the weather information on a map, and alerts the user (for example, see Patent Document 1).

Japanese Patent No. 4367257

  In the conventional example, attention is paid to a planned traveling point, and as a result of confirming the displayed road condition, it is necessary for the user to determine whether or not to pass the point.

  Similarly, when the road condition of the destination is displayed, the problem is that the user must determine whether to go to the destination, or if the destination does not go, consider another destination. was there.

  The present invention has been made to solve the conventional problem, and when searching for a guide route to a destination and obtaining weather information of the destination or a planned traveling point, the road at the destination or the planned traveling point is provided. The purpose is to improve the convenience of the user by judging the situation and searching for another new destination when it is judged that there is a problem.

  In order to achieve the above object, a navigation device of the present invention sets a current position detecting means for detecting a current position, a map data storing means for storing map data including information on road shapes and information on facilities, and sets a destination. Destination setting means, information acquisition means for acquiring and storing weather information, route search means for searching a route from the current position detected by the current position detection means to the destination, and search by the route search means An arrival time calculating means for calculating an arrival time to the destination using the route obtained, and obtaining weather information of the destination from the information acquisition means using the arrival time calculated by the arrival time calculating means. A road condition judging means for judging the road situation around the destination, and searching for a new destination similar to the destination based on the judgment result of the road situation judging means. Re-search means, control means for re-searching the route to the new destination searched for by the re-search means, and display means for displaying the route to the destination. And

  Further, the re-search means of the navigation device of the present invention includes at least one of the type, address, estimated arrival time, required time for guidance of the route, required distance, and required amount regarding the destination set by the destination setting means. A new destination different from the destination satisfying one condition is re-searched.

  The information acquisition means of the navigation device of the present invention has a configuration for acquiring and storing traffic information, and the traffic information is searched when the route search means searches for a destination or a route to a new destination. The route search is performed in consideration of the above.

  According to the present invention, when there is a problem with the road condition of the destination or the planned traveling point, the user can automatically search and examine other destinations without determining whether or not to go to the point. Has the effect that it is only necessary to select from the displayed options.

The perspective view of the motor vehicle carrying the navigation apparatus in Embodiment 1 of this invention. Configuration diagram of navigation device in Embodiment 1 of the present invention (A) Flow diagram for explaining operation of navigation device in embodiment 1 of the present invention (b) Flow diagram for explaining operation of navigation device in embodiment 1 of the present invention Schematic diagram showing a display example in the navigation device in Embodiment 1 of the present invention.

Hereinafter, a navigation apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an automobile equipped with a navigation device according to Embodiment 1 of the present invention. As shown in FIG. 1, an automobile 11 is shown, and a navigation device 10 is provided in front of the automobile 12.
About the navigation apparatus 10 installed as mentioned above, the structure is demonstrated below. FIG. 2 is a block diagram showing the configuration of the navigation device 10 according to Embodiment 1 of the present invention.

  First, as shown in FIG. 2, the navigation device 10 includes a current position detection unit 20, a map data storage unit 21, a destination setting unit 22, an information acquisition unit 23 that acquires and stores weather information, and a route search unit 24. An arrival time calculation unit 25, a road condition determination unit 26, a re-search unit 27, a control unit 28, and a display unit 29.

  The road condition determination unit 26 acquires weather information around the destination at the arrival time calculated by the arrival time calculation unit 25 by the information acquisition unit 23 to determine the road condition. As a result, when it is necessary to set a new destination, the control unit 28 causes the re-search unit 27 to search for a new destination similar to the destination, and the search result, weather information, and road conditions are displayed on the display unit. 29 is configured to be displayed.

  The processing operation of the navigation device 10 installed as described above will be described below. FIGS. 3A and 3B are flowcharts of the navigation device 10 according to the first embodiment of the present invention.

First, in the navigation device 10, the current position is detected by the current position detection unit 20, the destination is searched from the search data held in the map data storage unit 21 by the destination setting unit 22, and set (S30). The search unit 24 searches for a route to the destination (S31). Search for destinations classified by restaurants, amusement parks, tourist attractions, etc., destination addresses, distances to destinations, required amount of routes searched, priority toll road priority, general road priority, etc. The conditions and route conditions such as arrival time to the destination calculated by the arrival time calculation unit 25 and required time are stored (S32). Further, for example, twice the route conditions such as the distance to the destination, the required amount of the searched route and the required time are set as the reference value (S33).

  And the information acquisition part 23 acquires the weather information of the destination in the calculated arrival time (S34), and confirms whether there is a problem in the content (S35). If there is no problem, weather information is acquired again after a certain period of time. If there is a problem, the road condition determination unit 26 determines the influence of weather information around the destination on the road, and the re-search unit 27 re-searches the route to the destination in consideration of the influence (S36). Then, it is confirmed whether or not the result exceeds the reference value (S37). If the reference value is not exceeded, guidance is continued (S3b), and weather information is acquired again after a certain period of time. If the reference value is exceeded, other destination candidates are searched under the stored route conditions (S38), the search results are displayed on the screen as destination candidates (S39), and options are provided to the user. . After displaying the destination candidates in S39, it is determined whether or not the user changes the destination (S40). If the destination is not changed, the guidance is continued as it is (S41). When the user selects a new destination by using an option in S40, the route search is performed again according to the new destination (S30).

  The following figure shows an example in which the result of processing as described above is displayed on the screen as a new destination candidate. FIG. 4 is a schematic diagram showing a display example in which other destination candidates are searched for with the stored route conditions and the search results are displayed on the screen as destination candidates in the first embodiment of the present invention.

  First, on the display screen 40 of the navigation device 10, a mark 41 indicating the current location of the vehicle, a destination 42, and a guide route 43 to the destination are displayed. In addition, destination candidates 44 searched under the stored route conditions (S39 in FIG. 3) are displayed, and the user sets a new destination by selecting the contents of the screen.

  As described above, according to the present embodiment, by providing means for re-searching for a new destination similar to the initial destination, it is not necessary to have information on how to use the device or other alternative destinations. New destinations can be set and arrived.

  In addition to determining the road condition based on the destination, a stopover may be provided on the searched route, and the stopover may be determined. Moreover, although only weather information was used for judgment, you may use traffic information and regulation information for judgment. Further, the user may select / designate conditions for searching for a new destination. Conversely, the user may select a new destination from the results of searching under various conditions.

  The navigation device of the present invention automatically creates a new destination that is different from the initial destination that satisfies at least one of the following conditions: type, address, estimated time of arrival, required time of guide route, required distance, and required amount of money It is expected to be widely used as a navigation device for vehicles etc. that is re-searched and provided to users.

DESCRIPTION OF SYMBOLS 10 Navigation apparatus 11 Car 12 Car 20 Current position detection part 21 Map data storage part 22 Destination setting part 23 Information acquisition part 24 Route search part 25 Arrival time calculation part 26 Road condition judgment part 27 Re-search part 28 Control part 29 Display Part 40 Display screen 41 Mark indicating the current location of the vehicle 42 Destination 43 Guide route 44 to the destination Destination candidate

Claims (3)

Current position detecting means for detecting the current position;
Map data storage means for storing map data including information on road shapes and information on facilities;
Destination setting means for setting the destination;
Information acquisition means for acquiring and storing weather information;
Route search means for searching for a route from the current position detected by the current position detection means to the destination;
An arrival time calculating means for calculating an arrival time to the destination using the route searched by the route searching means;
Road condition determination means for acquiring the weather information of the destination from the information acquisition means using the arrival time calculated by the arrival time calculation means and determining the road condition around the destination;
Re-search means for searching for a new destination similar to the destination based on the determination result of the road condition determination means;
Control means for re-searching the route to the new destination searched by the re-search means by the route search means;
Display means for displaying the route to the destination;
A navigation device comprising:   The re-search means is the destination satisfying at least one of the type, address, estimated arrival time, required time for route guidance, required distance, required price set by the destination setting means. The navigation device according to claim 1, wherein a new destination different from that is re-searched.   The information acquisition unit has a configuration for acquiring and storing traffic information, and performs a route search in consideration of the traffic information when the route search unit searches for a route to a destination or a new destination. The navigation device according to claim 1 or 2, wherein

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