JP2002323333A - Traveling route guide device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem that, when there are a plurality of exits in an interchange, which one of the exits is to be used is nonambiguously decided. SOLUTION: When using the Chuo Expressway from the Tokyo city center, for example, a route getting out at Kunitachi Fuchu Interchange and going to Koushu Road is searched by an ordinary route search, however, when a user intends to pass by all means through a first exit of Hachioji Interchange, a route returning the Koushu Road from the first exit is searched and displayed by nominating the first exit of Hachioji Interchange thereby appropriately searching the route by realizing the intention of the user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling route guide device mounted on a vehicle or the like to guide a route from a departure place to a destination.

[0002]

2. Description of the Related Art Conventionally, this type of travel route guide device is incorporated in a navigation device, detects a current position by a current position detecting means such as a GPS receiver, and stores map data corresponding to the current position on a DVD. -Acquired through a recording medium such as a ROM or a network and displayed on a liquid crystal display, and a route search unit searches for a guide route to a destination set by a user, and superimposes the map on the map displayed on the liquid crystal display. By doing
It guides the user to the destination. If there is a road or point that you want to pass between the departure point and the destination, specify the passing point and make the settings to search the guide route to the destination that passes through the set road or point. Is done. When the vehicle approaches a junction such as an intersection or an interchange while traveling along the guidance route, an enlarged view or a three-dimensional view thereof is displayed, and guidance in a traveling direction, a distance to a destination, and the like are provided by voice.

A route search is a simulation calculation using a horizontal search method or a Dijkstra method. A road connecting a road to a certain intersection and an adjacent intersection is defined as a link, and an intersection connecting two or more links is defined as a node. The cost is allocated to all the links, and the route with the minimum total cost from the departure point to the destination is calculated as the guide route. Cost is based on distance, road width,
Conditions such as road type (general road or expressway), right turn, left turn, etc. are added and quantified. If a passing road or a passing point is set along a traveling route on the way, an extra cost is required, but a route desired by the user is passed.

[0004]

However, in the above-mentioned conventional traveling route guidance device, when there are a plurality of exits, for example, as in the Hachioji interchange shown in FIG. Therefore, even if the user designates an exit that he or she wants to pass by using a road or a passing point setting function, the exit may not be selected in some cases. Since the road or waypoint setting function is originally selected by the user with the intention to use the road or the waypoint, the fact that the intention is not reflected on the device means that the user's satisfaction with the device is low. Become.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a traveling route guidance apparatus which allows a user to arbitrarily set a passing point having a plurality of exits or entrances. .

[0006]

In order to achieve the above object, a travel route guidance device according to the present invention comprises a map data acquisition means for acquiring map data, and a route for searching for a guidance route from a departure point to a destination. A search means, and a pass point setting means for arbitrarily setting any of the plurality of exits or entrances when there are a plurality of exits or entrances at a predetermined pass point in the guide route to the searched destination. It is possible to set a passing point reflecting the user's intention, and to improve user satisfaction.

Further, in the travel route guidance apparatus according to the present invention, the predetermined passing point is an interchange of an expressway or a toll road, and the expressway or toll road having a plurality of exits or entrances is provided. In the case of an interchange, the effects of the present invention can be effectively exhibited.

[0008] The traveling route guide device of the present invention further comprises display means for displaying a map based on the map data obtained from the map data obtaining means, and the display means is provided with the plurality of exits or entrances one by one. It is characterized in that it can be explicitly selected by the user, and even if the location or name of the exit or entrance is not known, the exit or entrance desired by the user can be determined while looking at the map.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of an on-vehicle navigation device provided with a traveling route guidance device according to an embodiment of the present invention. In FIG. 1, a map data acquisition unit 101 is a drive device that reads map data from a storage medium such as a CD-ROM or a DVD-ROM. This may be a communication device that downloads map data from an external server. Current position detector 10
Numeral 2 detects a current position of the vehicle based on signals from a vehicle speed sensor, a direction sensor, and a GPS receiver. The liquid crystal display unit 103 displays a road map corresponding to the detected current position together with the current position of the vehicle and a guide route, and may be a display device such as an organic EL panel.
The operation input unit 104 is a touch panel or a remote controller for inputting and setting a destination and a passing point. The control device 105 is a microcomputer that controls the entire device. The passing point setting unit 106 sets a passing point by designating an exit or an entrance of the passing point on the traveling route to the destination. The route search unit 107 searches for a guide route from the departure place to the destination. Voice guidance unit 108
Includes a voice processor and a speaker, and outputs voice data stored in the storage unit 109 as voice. Storage unit 1
Reference numeral 09 stores map data and work data, and a recording medium such as a hard disk, a ROM, a RAM, a flash memory, and a memory card is appropriately used.

Next, the navigation operation in the present embodiment will be described. In FIG. 1, when the apparatus is started up by a predetermined operation, the current position detection unit 102
An accurate current position (latitude, longitude) of the own vehicle is calculated based on position information from the PS receiver and signals from a direction sensor and a vehicle speed sensor. Based on the vehicle position information, the control device 105 reads out the corresponding road map data from the map data acquisition unit 101, converts the read road map data into image data, and converts the road map data into image data.
After that, the information is displayed on the screen of the liquid crystal display unit 103 together with the own vehicle position. On the other hand, the destination is designated by the operation input unit 104
, The control device 105 stores the data of the destination in the storage unit 109. The route search unit 107 calculates an optimal guide route from the current position of the own vehicle to the destination, and the control device 105 displays the guide route on the road displayed on the liquid crystal display unit 103 in a superimposed manner. . The driver advances the vehicle along the guidance route displayed on the liquid crystal display unit 103, and when the vehicle approaches a branch point or the like in the guidance route,
Guidance as to which direction to turn is output from the voice guidance unit 108. The driver can travel to the destination in the shortest distance or the shortest time without hesitation by the guidance of the navigation device.

Next, a description will be given, with reference to FIG. 2, of a route search process when passing points are set in the present embodiment. First, when a destination setting is selected from the menu screen, the route search unit 107 is activated, and when a destination is input according to the display on the screen (step S101), a type of a road to be passed and a passing point (intermediate point) are set. Is displayed. The user selects whether or not to pass the expressway, and whether or not to set a passing point (step S102). If no pass point is set, a normal guide route search is performed (step S107). If the user selects to set a passing point, the passing point setting unit 106 is activated, a facility name list is displayed on the screen, and the user specifies an interchange to be set as a passing point, for example, an Hachioji interchange (step S103). The passing point setting unit 106 checks whether there is a plurality of exits at the designated Hachioji interchange (step S10).
4). At the Hachioji interchange, in the case of a down line, as shown in FIG. 3, the information record of the Hachioji IC is included in the map data as the Hachioji IC (first exit) and the Hachioji I.
Since the data C (second exit) is recorded as a set, it is possible to check whether there are a plurality of exits by extracting the Hachioji interchange of the Chuo Expressway from the map data. If there are no multiple exits, a normal guide route search is performed (step S107). There are two exits on the down line of the Hachioji interchange,
Based on the coordinate data of the exit, a point selection screen as shown in (a) or (b) of FIG. 4 is displayed so as to be sequentially switchable by the next candidate button, and the user selects one of the exits by the set button according to the display. Select (Step S105). In this way, by displaying the points to be selected on the map with rhombic marks, it is obvious at a glance which point to select, and the user does not need to know the position or name of the exit to determine the exit to be taken. You can choose. Note that the selected result may be provided by the voice guidance unit 108 with voice guidance such as “set the first exit of Hachioji Interchange as a passing point”. Then, after the passing point setting unit 106 registers the selected exit and performs the passing point setting process (step S106), the route searching unit 10
7 searches for a guide route to the destination passing through the set passing point, and displays the result on the road on the screen of the liquid crystal display unit 103 (step S107).

As described above, according to the present embodiment, for example, when it is desired to use the Chuo Expressway from the city center to go near Hino Bridge, according to a normal route search, get off at the National Fuchu Interchange and The route to go is searched,
If the user wants to go through the first exit of the Hachioji interchange, the first exit of the Hachioji interchange
By specifying the exit, a route that returns from the first exit to the Koshu Highway is searched and displayed, and a route search that meets the user's wish can be performed.

In the above embodiment, the case where there are two outlets has been described as an example. However, the same processing is performed when there are a plurality of inlets. Further, the present invention can be applied not only to a highway interchange, but also to a case where a large facility has a plurality of exits and entrances.

[0014]

As described above, the present invention provides a map data obtaining means for obtaining map data, a route search means for searching for a guide route from a departure place to a destination, and a map search means for obtaining a guide route from a departure place to a destination. When there are a plurality of exits or entrances at a predetermined passing point in the guidance route, a passing point setting means that can arbitrarily set any one of the plurality of exits or entrances is provided to reflect the intention of the user. It is possible to set a passing point, and to provide a device with improved user satisfaction.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing a configuration of an on-vehicle navigation device including a traveling route guidance device according to an embodiment of the present invention.

FIG. 2 is a schematic flowchart showing a route search process when a passing point is set according to the embodiment of the present invention;

FIG. 3 is a schematic diagram showing a data structure of an interchange having a plurality of exits according to the embodiment of the present invention.

FIG. 4 is a screen transition diagram showing an example of a display screen when a passing point is set in the embodiment of the present invention.

FIG. 5 is a screen diagram showing an example of an interchange having a plurality of exits in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Map data acquisition part 102 Current position detection part 103 Liquid crystal display part 104 Operation input part 105 Control device 106 Passing point setting part 107 Route search part 108 Voice guidance part 109 Storage part

 ──────────────────────────────────────────────────続 き Continuation of the front page (71) Applicant 000004260 DENSO CORPORATION 1-1-1, Showa-cho, Kariya-shi, Aichi (71) Applicant 000237592 FUJITSU TEN LIMITED 1-2-28, Goshodori, Hyogo-ku, Kobe, Hyogo (72) Inventor Masayuki Umemura 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama City, Kanagawa Prefecture Inside Matsushita Communication Industrial Co., Ltd. (72) Inventor Yoshihiko Honjoya 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama City, Kanagawa Prefecture Matsushita Communication Inside Industrial Co., Ltd. (72) Inventor Hidenobu Suzuki 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (72) Inventor Yukihiro Nagata 6-18 Okamachi Harayama, Okazaki City, Aichi Prefecture Inside Aisin AW Co., Ltd. (72) Inventor Mamoru Kainuma 6-18 Harayama, Okamachi, Okazaki City, Aichi Prefecture Inside Aisin AW Co., Ltd. (72) Akita Hideyoshi Yamauchi 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Inside Denso Co., Ltd. Inventor Masatsugu Uemura 1-2-28 Goshodori, Hyogo-ku, Kobe-shi, Hyogo F-term in Fujitsu Ten Co., Ltd. FF05 FF22 FF25 FF27 FF33

Claims (3)

[Claims] 1. Map data acquisition means for acquiring map data, route search means for searching for a guide route from a departure point to a destination, and exit at a predetermined passing point in the guide route to the searched destination. Or if you have multiple entrances,
A travel route guidance device comprising: a passing point setting means capable of arbitrarily setting any of the plurality of exits or entrances. 2. The travel route guidance device according to claim 1, wherein the predetermined passing point is an interchange of a highway or a toll road. 3. A display means for displaying a map based on the map data acquired from said map data acquisition means, wherein said plurality of exits or entrances are clearly displayed one by one on said display means so that a user can select said exits or entrances. The travel route guidance device according to claim 1 or 2, wherein: