JP2005062139A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable users to park a car in a parking lot and then arrive at a destination without losing their way even if they walk to the destination. <P>SOLUTION: The device comprises an inputting means which inputs a destination, a map information storing means which stores map information therein, a searching means which searches a parking lot which is the nearest to the destination inputted by the inputting means, and a route searching means which searches a route from a starting place to the parking lot which is the nearest to the destination searched by the searching means and a route from the parking lot which is the nearest to the destination to the destination. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a navigation device.

  Conventionally, when a destination is input, the navigation device searches for a route from the departure point to the destination, and performs route guidance based on the searched route. Information on the route to the destination is provided.

  In reality, however, there may be no parking at the destination. In such a case, after the user travels to the destination according to the route guidance searched, it is inconvenient because it is necessary to search for a nearby parking lot or find a parking lot in the middle of traveling to the destination.

Therefore, the correspondence between the facility and the parking lot where the facility is affiliated is stored, and when the destination is set as the facility, the affiliated parking location is displayed superimposed on the map information and route guidance to the parking lot (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 10-89989 (page 3-7, FIG. 5)

  However, in the above-described method, the route guidance only provides route guidance from the departure place to the parking lot, so the route from the parking lot to the destination must be judged by the user by looking at the displayed map information. In the unfamiliar land, there is a problem that there is a possibility of getting lost before going from the parking lot to the destination.

  The present invention has been made in view of the above points, so that the user can reach the destination without hesitation even when the vehicle is parked at the parking lot and then the user walks to the destination. The purpose is to do.

  In order to achieve the above object, the navigation apparatus of the present invention is based on input means for inputting a destination, map information storage means for storing map information, and map information stored in the map information storage means. From the search means for searching the nearest parking lot of the destination input by the input means, the route from the departure place to the closest parking lot of the destination searched by the search means, and the closest parking lot of the destination Route search means for searching for a route to the destination.

  Further, based on the map information stored in the map information storage means, the input means for inputting the destination, the map information storage means for storing the map information, and within the predetermined range of the destination input by the input means Determining means for determining whether or not there is a parking lot, and when the determining means determines that there is no parking lot within a predetermined range of the destination, the nearest to the destination based on the map information stored in the storage means If the determination means determines that the parking lot is within the predetermined range of the destination, the route from the departure place to the destination is searched and the predetermined range of the destination is within the predetermined range. If it is determined that there is no parking lot, the route from the departure location to the nearest parking lot of the destination searched by the search means and the route from the nearest parking lot of the destination to the destination are searched. Route search means to Equipped with a.

  Further, the route search means searches for a route from the departure place to the nearest parking lot of the destination searched by the search means under the first condition, and sets the second route from the nearest parking lot to the destination. Search by the condition of.

  The first condition performs a route search in consideration of vehicle traffic restrictions, and the second condition performs a route search without consideration of vehicle traffic restrictions.

  According to the navigation device of the present invention, when there is no parking lot around the destination when the destination is input, the nearest parking lot of the destination is automatically searched, and the route from the departure location to the parking lot and the parking location are automatically searched. Since the route from the parking lot to the destination can be routed, the user can reach the destination after putting the car in the parking lot without hesitation.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a main part of a navigation apparatus according to the present invention.

  Reference numeral 1 denotes a control circuit composed of a microcomputer or the like, which controls the entire navigation device based on a program written in the ROM 2. The GPS receiver 3 receives radio waves from GPS satellites, measures the current position, and outputs measurement data to the control circuit 1. Reference numeral 4 denotes a map storage unit which reads map information from an optical disc such as a DVD in which map information necessary for map display and route search is written and outputs the map information to the control circuit 1. The map information is not limited to being stored on the optical disc, but may be another disc-type storage medium, or may be acquired and stored by communication.

  Reference numeral 5 denotes a display unit composed of a liquid crystal monitor, which displays map information and the like based on image data output from the control circuit 1. An input unit 6 is connected to the control circuit 1 and has a switch for inputting various commands (for example, enlargement / reduction of map data, setting of a destination, etc.). 7 is a route search unit, and a map stored in the map storage unit 4 is a route that connects a starting point and a destination (or parking lot) input by the user via the input unit 6 under a predetermined condition. Search based on information. For example, a route having the minimum cost under various conditions such as the shortest distance and the shortest time is extracted. A RAM 8 temporarily stores control data of the control circuit 1. Reference numeral 9 denotes a voice output unit for notifying route guidance by voice.

  Next, map information stored in the map storage unit 4 will be described. The map information includes display map data necessary for map display and network data necessary for route search.

  FIG. 2 is a diagram for explaining the basic concept of network data. (1) As shown in FIG. 2, the map is not captured only at the intersection, but is effective at the point between the intersections (for example, the bridge). , Rivers, buildings, gas stations, etc.) are captured by the concept of nodes, and between nodes are captured by the concept of links. Therefore, a node indicates point data of map coordinates, an intersection is a part of the node, while a link indicates line data and indicates a part of the road. By configuring in this way, at the intersection shown in FIG. 2 (2), a mark as guidance information that is effective between the roads connecting the intersection number n and the intersection numbers before and after the intersection number n (that is, between two intersections) is data. Can be given as

  FIG. 3 shows the column data of the node described above, and stores the attribute for distinguishing the east longitude and north latitude with respect to the node number, that is, the coordinates of the point and valid guidance information (eg, bridge, river, building, gas station, etc.) as data. ing.

  FIG. 4 shows an example of the intersection list, and its code number, intersection name, intersection number (number assigned to only the intersection among the nodes), two connected node numbers and landmarks as described in FIG. And attributes are stored.

  FIG. 5 shows an example of a parking lot list, which stores parking lot numbers, connecting intersection numbers, and coordinates.

  FIG. 6 shows an example of road data. (2) As shown in FIG. 6, roads are assigned road numbers with directionality, and each road number has a start point and an end node number, and the same start point. The next number among road numbers, the next number among road numbers with the same end point, road thickness, traffic prohibition information such as one-way traffic and vehicle traffic prohibition, number of nodes, node string data Is stored.

  Next, operation | movement of the control circuit 1 of the navigation apparatus which concerns on this invention is demonstrated using FIG.

  When the destination is input by the user via the input unit 6 (step S1), the position of the input destination position coordinates and the position coordinates of the parking lot in the map information stored in the map storage unit 4 From the relationship, it is determined whether or not there is a parking lot within a predetermined range of the destination (for example, within a radius of 100 m of the destination) (step S2).

  If it is determined in step S2 that there is a parking lot within a predetermined range of the destination (Y in step S2), the route search unit 7 starts based on the map information stored in the map storage unit 4. The optimum route under a predetermined condition (for example, the shortest route) from the destination to the destination is searched (step S3). At this time, the route search is performed by excluding the roads prohibited from traffic in consideration of the traffic prohibition information of the road data included in the map information.

  If it is determined in step S2 that there is no parking lot within the predetermined range of the destination (N in step S2), the destination is determined from the position coordinates of the destination and the position coordinates of the parking lot included in the map information. The closest parking lot to the ground is searched (step S4).

  When the nearest parking lot to the destination is searched in step S4, the optimum route from the departure point to the destination is determined by the route search unit 7 based on the position coordinates between the departure position and the searched parking lot. Is added to the road data prohibition information included in the map information, and a route search is performed by excluding the traffic prohibition road (step S5).

  After that, the route search unit 7 does not consider the road prohibition information of the road data included in the map information and regards the road prohibited from passing as possible, and searches for the route from the nearest parking lot to the destination. (Step S6).

  In step S7, the route searched in steps S3, S5, and S6 is superimposed on the road of the display map data of the map information stored in the map storage unit 4 so that the color is different from the color of the normal road. And displayed on the display unit 5. Note that the route displayed in a color different from the route searched in step S5 and the route searched in step S6 so that the user can know whether or not the displayed route is a route that can be traveled by a vehicle. It is desirable to display.

  Then, along with the movement of the navigation device, the direction of travel at the intersection, guidance information, etc. are displayed on the display unit 5, and the voice output unit 9 informs the user by voice and provides route guidance to the destination (or parking lot). (Step S8).

  According to such an embodiment, even if there is no parking lot near the destination, for example, the user goes to the nearest parking lot of the destination without hesitation, and then walks to the destination. It is possible to go to the ground. Furthermore, by conducting a route search considering the movement from the departure point to the parking lot and taking into consideration the movement from the parking lot to the destination (that is, not considering the vehicle traffic rules) Route guidance that is optimal for the user is possible.

It should be noted that the parking lot to be searched may be searchable from conditions such as paying, free of charge, or a partner parking lot of the facility when the destination is a facility.

It is a block diagram which shows the structure of the principal part of the navigation apparatus of this invention. It is a figure explaining the data structure of the map information of the navigation apparatus of this invention. It is a figure explaining the data structure of the map information of the navigation apparatus of this invention. It is a figure explaining the data structure of the map information of the navigation apparatus of this invention. It is a figure explaining the data structure of the map information of the navigation apparatus of this invention. It is a figure explaining the data structure of the map information of the navigation apparatus of this invention. It is a flowchart which shows operation | movement of the navigation apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Control circuit 3 GPS receiving part 4 Map memory | storage part 7 Route search part

Claims (4)

An input means for inputting a destination;
Map information storage means for storing map information;
Search means for searching for the nearest parking lot of the destination input by the input means based on the map information stored in the map information storage means;
Route search means for searching a route from a departure place to the nearest parking lot of the destination searched by the search means, and a route from the closest parking lot of the destination to the destination;
A navigation device characterized by comprising: An input means for inputting a destination;
Map information storage means for storing map information;
Determination means for determining the presence or absence of a parking lot within a predetermined range of the destination input by the input means based on the map information stored in the map information storage means;
Search means for searching for the nearest parking lot of the destination based on the map information stored in the storage means when the determination means determines that there is no parking lot within a predetermined range of the destination;
When it is determined by the determination means that there is a parking lot within a predetermined range of the destination, when a route from the departure place to the destination is searched and it is determined that there is no parking lot within the predetermined range of the destination Is a route search means for searching a route from the departure point to the nearest parking lot of the destination searched by the search means, and a route from the closest parking lot of the destination to the destination;
A navigation device characterized by comprising:   The route search means searches for a route from a departure place to the nearest parking lot of the destination searched by the search means using a first condition, and a route from the nearest parking lot to the destination is a second condition. The navigation apparatus according to claim 1, wherein the search is performed using The navigation apparatus according to claim 3, wherein the first condition performs a route search in consideration of vehicle traffic restrictions, and the second condition performs a route search without consideration of vehicle traffic restrictions.

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