JP2004286520A - Navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a user to correspond quickly to a paper map, when the user inputs destinations or confirms displayed routes. <P>SOLUTION: In a storage medium read by an application reader 15, link information, which allows expressible positions on an atlas (all pages in the atlas and all grid positions in the pages) to correspond to data on a latitude/longitude corresponding to each of the grid positions (data of the same expression format as positioning data of a GPS), is written. The user can input the positions of the destinations by expressing them by the pages in the atlas and the grid positions in the pages. When current positions of the user's own vehicle obtained from the GPS or points on guidepaths (marked institutions or the like) are displayed on a display panel 13, a master controller 10 retrieves the link information and fetches and displays the positions corresponding to them on the atlas (corresponding pages and the grid positions in the pages). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a navigation system particularly suitable for use in a motorcycle or the like, and in particular, uses a commercially available map book (paper map) as map information, and obtains current location information of a motorcycle or the like obtained from a GPS (Global Positioning System). The present invention relates to a navigation system that performs guidance display in association with a position on the map book (a corresponding page and a grid point position in the page).
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is an automobile navigation system. This system reads a CD-ROM on which map data is recorded, and displays the current position information of the own vehicle obtained from GPS over the read map. The operation of the system in this case will be described with reference to the flowchart shown in FIG.
[0003]
FIG. 5 is a flowchart showing the operation of the conventional automobile navigation system. Hereinafter, the operation of the conventional automobile navigation system will be described with reference to the flowchart shown in FIG.
First, a destination is input and set (step A1). Next, a route (guidance route) to the destination is calculated (step A2). Next, the current position of the vehicle is obtained from GPS positioning data, and the map data around the current position of the vehicle is loaded from the CD-ROM in which the map data is recorded (step A3). The vehicle position based on the GPS positioning data is drawn and displayed on the map data (step A4).
[0004]
Next, it is verified whether or not the own vehicle position is on the above-mentioned route (step A5). If the own vehicle position is not on the above-mentioned route, the process returns to step A2 to calculate a new route. I do. If the own vehicle position is on the calculated route, it is verified whether or not the own vehicle position based on the GPS positioning data is around the set destination (step A5). If the position is not around the destination, the process returns to step A3 to repeat the processing for obtaining the current position of the own vehicle from the GPS positioning data, and the process is ended if the own vehicle position is around the destination.
[0005]
However, such a car navigation system requires a large-screen color CRT or a color liquid crystal display device for displaying map data read from a CD-ROM. Can not be used.
Therefore, as a motorcycle navigation system, there has been proposed a system that uses a commercially available paper map as map information and displays the current position information and the like of the motorcycle obtained from the GPS by displaying the latitude and longitude on the paper map for guidance. (For example, Patent Document 1).
[0006]
[Patent Document 1]
JP-A-11-14390
[0007]
[Problems to be solved by the invention]
By the way, in the conventional navigation system for a motorcycle described in Patent Document 1, as described above, a commercially available paper map is used as the map information, and the current position information of the motorcycle obtained from the GPS is displayed on the paper map. The guidance is displayed by displaying the latitude and longitude of. In this case, since the correspondence with the actual map data is performed with reference to a commercially available paper map carried, it is necessary to display the map data from a CD-ROM in which the map data is recorded as in a car navigation system. It is suitable for a simple navigation system for motorcycles.
[0008]
However, in the conventional motorcycle navigation system described in Patent Literature 1, all of the destinations must be input with reference to the latitude and longitude on the paper map, and a route (guidance route) is required. Are also displayed as latitude and longitude on this paper map, so you can enter the destination and correspond to the location on the paper map of the displayed points (such as landmark facilities) on the route. And it is very inconvenient.
[0009]
In addition, the user must carry a commercially available paper map and always enter a destination and confirm points on the displayed route on the paper map based on the carried paper map. The traveling range of the vehicle is always limited to the range of the paper map carried, and there is a problem that it cannot cope with a route not carried as a paper map.
[0010]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has GPS positioning data necessary for route guidance, a position on a map book (a corresponding page and a grid point position in the page). It is an object of the present invention to provide a navigation system that allows a user to quickly associate with a paper map when inputting a destination or confirming a displayed route by using link information that associates with a paper map.
[0011]
Another object of the present invention is to provide link information for associating GPS positioning data required for route guidance with a position on a map book (a corresponding page and a grid point position in the page) via a mobile phone network. Another object of the present invention is to provide a navigation system that can be ordered from a center at will.
[0012]
Another object of the present invention is to provide a navigation system capable of ensuring the safety of life and physical safety of a user by automatically notifying the center when an accident such as a vehicle body fall occurs. .
[0013]
[Means for Solving the Problems]
In order to solve the above problem, a navigation system according to claim 1 of the present invention calculates a route to a set destination, and calculates the route based on a current position indicated by GPS positioning data. A navigation system that performs route guidance by updating the location at any time and displaying the name of a point near the current position on the route, wherein the setting of the destination is performed on a map book corresponding to the destination. Setting means that can be performed by using the corresponding page and the grid point position in the page, and the current position indicated by the GPS positioning data, and the point on the route to the corresponding page on the corresponding map book and Display means for displaying using grid point positions in the page.
[0014]
According to the first aspect of the present invention having the above configuration, when inputting / setting a destination or displaying a point (a facility serving as a landmark) on a route, a corresponding page on a predetermined map book or a page within the page is displayed. Can use a grid point position, and realizes a navigation system that allows a user to quickly correspond to the above map book when inputting / setting a destination or confirming a point on a displayed route. be able to.
[0015]
According to a second aspect of the present invention, in the navigation system according to the first aspect, when displaying the current position or a point on the route, all pages in the map book and all grid point positions in the page are displayed. It is characterized by referring to information for associating latitude and longitude data corresponding to each of the grid point positions, and information in which the positions and names of points on the route are written.
[0016]
According to the second aspect of the present invention having the above configuration, the system refers to each of the information (that is, information created in advance as an application) when displaying the position of the vehicle measured by GPS and points on the route. Therefore, it is possible to realize a navigation system capable of quickly displaying the corresponding page of the map book corresponding to the own vehicle position measured by the GPS and the point on the route and the grid position in the page.
[0017]
According to a third aspect of the present invention, in the navigation system according to the second aspect, the latitude / longitude data described in the application is data in the same representation format as GPS positioning data.
[0018]
In the invention according to claim 3 having the above-described configuration, the system refers to the application and immediately displays the vehicle position measured by GPS as the corresponding page of the corresponding map book and the grid position within the page. It is possible to realize a navigation system that can perform the navigation.
[0019]
According to a fourth aspect of the present invention, in the navigation system according to any one of the first to third aspects, the map book is stored in Hokkaido, Tohoku, Kanto, Chubu, Kansai, Chugoku / Shikoku, Kyushu, And Okinawan map data corresponding to each of the above.
[0020]
In the invention according to claim 4 having the above-described configuration, the application can be compiled for each of the regions, so that the user can carry out the route guidance service by carrying only the storage medium storing the application suitable for the traveling route. A navigation system that can be received can be realized.
[0021]
According to a fifth aspect of the present invention, in the navigation system according to any one of the first to fourth aspects, a communication unit for downloading the application or the map book from a center via a mobile phone network is provided. It is characterized by having.
In the invention according to claim 5 having the above-described configuration, the application can be downloaded from the center via the mobile phone network. Therefore, the user carries a storage medium storing the application covering the travel route. Even when there is no navigation system, a navigation system that can always receive a highly accurate route guidance service can be realized.
[0022]
According to a sixth aspect of the present invention, in the navigation system according to the first aspect, a gyro sensor for detecting an attitude of the vehicle and a communication unit capable of communicating with a center via a mobile phone network are additionally provided. And when the signal from the gyro sensor detects that the vehicle has fallen, the center is notified of the occurrence of an accident.
[0023]
In the invention according to claim 6 having the above-described configuration, when a vehicle fall accident occurs, a notification of the accident is automatically given to the center, so that the safety of the life of the user and the physical safety can be achieved. It is possible to realize a navigation system that can perform the navigation.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of a navigation system according to the present invention will be described in detail with reference to the drawings.
The embodiment described below is one in which the navigation system of the present invention is applied to a two-wheeled vehicle.When the destination is input or the displayed route is confirmed, the correspondence of the position with the paper map is described on the paper map. It can be obtained by a corresponding page on a map book and a grid point position in the page. It is needless to say that the navigation system of the present invention is not limited to the two-wheeled vehicle described below, but can be applied to a car or a foot.
[0025]
FIG. 1 is a configuration diagram showing a configuration of a motorcycle navigation system according to an embodiment of the present invention.
In the figure, the motorcycle navigation system according to the present embodiment controls the entire system, and stores a main controller 10 for performing processing necessary for navigation, and a program and data necessary for the above control and processing. Storage device 11, a graphic display control unit 12 for performing control necessary for graphic display, and a display panel 13 having a graphic display unit.
[0026]
In addition, the navigation system for a motorcycle according to the present embodiment detects an attitude (tilt) of a vehicle body, including an interface unit 14 for performing various interfaces, an application reading device 15 for reading a storage medium in which an application described later is stored. A gyro sensor 16 is provided.
[0027]
Further, the navigation system for a motorcycle according to the present embodiment includes a telephone device modem 17 for relaying the interface unit 14 to a portable terminal or a mobile phone of an external system, and a voice wireless module connected to the interface unit 14 for processing voice information. 18 is provided.
[0028]
Note that, in addition to the above components, an input unit for inputting information or a command to the system can be provided. It is also possible to input information and instructions to the system from a portable terminal of an external system via a telephone device modem.
[0029]
The interface unit 14 can be configured by an ASIC (Application Specific Integrated Circuit). The interface unit 14 also includes an interface unit for inputting GPS positioning data (data indicating the position of the vehicle in a three-dimensional space, specifically, data indicating latitude, longitude, and altitude). And
[0030]
The application reading device 15 can read an application recorded on an SD card, a compact flash (CF), or the like.
[0031]
Hereinafter, with reference to FIG. 1, the function of the navigation system of the present embodiment will be described for each main component.
Main controller 10 controls the components of the entire system. Also, it performs processing necessary for navigation. The contents of this processing include a search process for searching for a position (a corresponding page and a grid point position in the page) on a map book corresponding to the GPS positioning data obtained by the GPS, and a processing for the graphic display control unit 12. Processing for creating a command is also included. Also, by monitoring a signal sent from the gyro sensor and detecting that the motorcycle has fallen, the motorcycle notifies the center of a fall via the interface unit 14, the telephone equipment modem 17 and the mobile phone network. It is assumed that main controller 10 also incorporates a clock for measuring time.
[0032]
The storage device 11 stores programs and data necessary for the control of the main control device 10 and the above-described navigation processing.
The stored data includes all representable positions in the map book (all pages and all grid point positions in the page), and latitude / longitude data (latitude / longitude) corresponding to each of the grid point positions. Data written in association with GPS positioning data) and data in which the position and name of a point on a route are written.
[0033]
Note that this data is created in advance by another system. Further, the data is stored in a storage medium, and the data stored in the storage medium is read by the application reading device 15 and sent to the main control device 10 via the interface unit 14 and finally stored. It shall be stored in the device 11.
[0034]
The graphic display control unit 12 performs control necessary for graphic display, and inputs and sends a user command. More specifically, various types of data stored in the storage device 11 are edited to create a display command necessary for displaying an image as shown in FIG. 2 described later, and send it to the display device of the display panel 13. . When a push button on the display panel 13 is pressed, which push button is pressed is transmitted to the main storage device 10 via the graphic display control unit 12.
[0035]
A display device (not shown) of the display panel 13 displays an image as shown in FIG. 2 described later on a display unit (not shown) based on the display command sent from the graphic display control unit 12.
The interface unit 14 serves as an interface between the main controller 10 and various sensors and external systems. More specifically, the information acquired by various protocols from the sensors and the external system is converted into an internal code and transmitted to main controller 10. In addition, the main controller 10 converts information addressed to the external system into an external code and a protocol corresponding to the external system, and sends the converted information to the external system.
[0036]
The application reading device 15 reads a storage medium in which the above-described application is stored, and sends it to the main storage device 10 via the interface unit 14. This application is stored in the main storage device 11.
The gyro sensor 16 detects the attitude of the vehicle body, and sends the detected attitude to the main controller 10 via the interface unit 14 as attitude information. This posture information is necessary for automatically notifying the center when an accident such as a fall of the vehicle body occurs.
[0037]
In addition to the posture information, information from various sensors arranged in the main part of the vehicle body is taken into main controller 10 via interface unit 14. As such a sensor, a sensor that detects a vehicle speed, a sensor that detects terrestrial magnetism, and the like can be installed. In addition, the main controller 10 can also take in GPS positioning data indicating the absolute position of the vehicle.
[0038]
The telephone equipment modem 17 converts information transmitted from the main controller 10 and converted by the interface unit 14 and transmitted according to a predetermined protocol into a signal that can be transmitted through the mobile telephone network, and converts the information into a signal that can be transmitted to the mobile telephone network. Send. Further, it transmits a signal transmitted from the mobile phone network according to a predetermined protocol to the interface unit 14.
The voice wireless module 18 converts a voice signal of a telephone or a guidance voice signal into a radio wave of a predetermined frequency and transmits the radio wave to an earphone unit installed on a helmet worn by a user (driver). Further, it receives the radio wave of the audio signal transmitted from the microphone installed on the helmet worn by the user, converts it into an audio signal, and sends it to the interface unit 14.
[0039]
FIG. 2 is an explanatory diagram showing a display panel of the navigation system for a motorcycle according to the embodiment of the present invention and an example of an image displayed on the display panel.
The display panel 13 of the navigation system for a motorcycle according to the present embodiment includes one display screen and four push buttons.
[0040]
In the example shown in FIG. 2, the route information 22 and the current location information 21 in the guide screen 20 of the display screen, the “arrow indicating the direction of 1:30” on the turning direction display unit 23 for displaying the turning direction, and the time for displaying the time "10:56" is displayed on the display unit 24, and "65 km / h, 4500 rpm" is displayed on the speed display unit 25 for displaying the speed of the vehicle.
[0041]
In the route information display section 22 for displaying points on the route to be reached next, data "300 m ahead, rightward direction, P56, B-3, Bijogi intersection, expected arrival time 11:35" is displayed. On the current location information display section 21, data "P56, A-2, near the Mikage intersection" is displayed. In these displays, the display “P56” indicates the corresponding page on the map book to be referred to as the current location information, and the display “B-3” or “A-2” indicates the grid point position in the page. Are respectively shown. The points on the route described above can be displayed by the main control device 10 also referring to the application described above.
[0042]
The four push buttons provided on the display panel 13 are specifically a “current position” button 26 that is pressed when displaying guidance information near the current location, and a “purpose” button that is pressed when displaying guidance information near the destination. A "back" button 28 is pressed to cancel the display of guidance information and the like and route guidance, and a "set" button 29 is pressed to start display of guidance information and the like and route guidance. When the display panel 13 is provided with a touch panel type display unit, the above buttons can be buttons displayed on the screen.
[0043]
FIG. 3 is a state transition flowchart showing a state transition of the motorcycle navigation system according to the embodiment of the present invention. Hereinafter, the state transition of the navigation system according to the present embodiment will be described with reference to FIGS.
[0044]
At the branch point T1, the state changes depending on whether or not the vehicle is stopped. When the vehicle is stopped, destination setting (P1) and route calculation (P2) are performed. In this case, the application can be downloaded from the center and stored in the storage device 11 via the telephone device modem 17 and the mobile phone connected to the mobile phone network (P3). ). In addition, when the own vehicle is moving, it changes to the branch point T2.
[0045]
At the branch point T2, the state changes depending on whether or not the own vehicle has caused an accident (that is, whether or not the vehicle has fallen). When the vehicle has an accident, a center call P4 (notification to the center) is performed. If the vehicle is running without an accident, the transition to the branch point T3 is made.
[0046]
At the branch point T3, the state changes depending on whether or not the current position of the own vehicle is on the route (the calculated guidance route). If the current location of the vehicle is outside the route, reroute P5 (recalculation of the guidance route) is performed. When the current position of the own vehicle is included in the route, the own vehicle position update P6 (that is, traveling according to the guidance display) is performed.
[0047]
FIG. 4 is a flowchart illustrating the operation of the motorcycle navigation system according to the embodiment of the present invention. Hereinafter, the operation of the navigation system according to the present embodiment will be described with reference to FIGS.
[0048]
First, a destination is input to the system and set using the above-mentioned input means or a portable terminal (step S1). Next, main controller 10 calculates a route (guidance route) to the destination (step S2). Next, the main controller 10 obtains the current position of the own vehicle from the GPS positioning data, and uses an application stored in the storage device 11 to display the current position on the map book corresponding to the vicinity of the current position of the own vehicle. The position data (corresponding page and all grid point positions in the page) are searched and stored in the storage device 11 (step S3).
[0049]
Next, the main control device 10 transmits, via the graphic display control unit 12, position information on a map book corresponding to the vicinity of the own vehicle position based on the GPS positioning data (indicating the grid point position in the page) Is displayed on the display panel 13 (step S4). Next, whether or not the own vehicle position is within the range corresponding to the position on the displayed map book (the position of one grid point), that is, the own vehicle position is the grid point position It is verified whether or not the vehicle is within a range shorter than a predetermined distance (step S5). If the own vehicle position is not within the range corresponding to the above-mentioned lattice point position, the process returns to step S4. Display of another grid point position is started. .
[0050]
If the own vehicle position is in the range corresponding to the above-mentioned lattice point position, it is verified whether or not this own vehicle position is in the above-mentioned route (step S6). If the own vehicle position is not included in the above-mentioned route, the flow returns to step S2 to recalculate the route. Further, when the own vehicle position is in the above-mentioned route, it is further verified whether or not this own vehicle position is around the above set destination (step S7). If the own vehicle position is not around the destination, the process returns to step S3, and the search for map data around the current position of the own vehicle is repeated. If the position of the own vehicle has reached the vicinity of the destination, the process ends.
[0051]
In this embodiment, as means for associating the GPS positioning data (position information of the own vehicle) with the position on the map book, the position on the map book (the corresponding page and the grid within the page) is used. Although the position of the point is displayed, it is also possible to display the name of the point on the map book corresponding to the GPS positioning data (for example, a facility name as a landmark) and the map code. .
[0052]
In addition, the above-described applications can be created for each region such as Hokkaido, Tohoku, Kanto, Chubu, Kansai, Chugoku / Shikoku, Kyushu, and Okinawa, and version control is also possible. The above-described application and the map book itself can be downloaded from the center using a mobile phone or a mobile terminal connected to the telephone device modem 17 and stored in the storage device 11.
[0053]
Further, as a representative of the above-mentioned map book, it is possible to use "TOURING MAPPLE" (touring maple), which is a standard map of riders and issued by Shobunsha Co., Ltd. According to this embodiment, a page in a predetermined map book and a grid point position in the page are used for inputting a destination and displaying a route, so that the user can quickly correspond to the map book. There is an effect that can be.
[0054]
In addition, since the above-mentioned applications and the map books themselves can be arbitrarily obtained from the center via the mobile phone network, a medium storing applications corresponding to a wide range of maps and the corresponding map books themselves can be carried. Without this, there is an effect that the guidance range that can be covered by the system can be easily expanded. Further, when a vehicle body fall accident occurs, the occurrence of the accident can be automatically notified to the center, so that there is an effect that the safety of the user can be improved.
[0055]
【The invention's effect】
As described above, according to the navigation system of the present invention, when inputting / setting a destination or displaying a point on a route, a corresponding page on a predetermined map book or a grid point position in the page is used. Therefore, it is possible to provide a navigation system that allows a user to quickly correspond to a map book when inputting / setting a destination or confirming a point on a displayed route.
[0056]
Further, all pages in the map book and all grid point positions in the page are linked to latitude / longitude data (data in the same representation format as GPS positioning data) corresponding to each grid point position. The link information and the like (application) and the map book itself can be arbitrarily obtained from the center via a mobile phone network. Therefore, a medium storing an application corresponding to a wide range of maps, a corresponding map, or the like. It is possible to provide a navigation system that can easily expand the guidance range that can be covered by the system without carrying the book itself.
[0057]
Furthermore, when a vehicle body fall accident occurs, the occurrence of the accident is automatically notified to the center, so that a navigation system can be provided that can ensure the safety of the life and physical safety of the user in the case of the vehicle body fall accident. can do.
[Brief description of the drawings]
FIG. 1 is a configuration diagram illustrating a configuration of a motorcycle navigation system according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing a display panel of the motorcycle navigation system according to the embodiment of the present invention and an example of an image displayed on the display panel.
FIG. 3 is a state transition flowchart showing the state transition of the motorcycle navigation system according to the embodiment of the present invention.
FIG. 4 is a flowchart showing the operation of the navigation system for a motorcycle according to the embodiment of the present invention.
FIG. 5 is a flowchart showing the operation of the conventional automobile navigation system.
[Explanation of symbols]
10 Main controller
11 ... Storage device
12. Graphic display control unit
13 Display panel
14 Interface unit
15 Application reading device
16 ... Gyro sensor
17… Modem for telephone equipment
18. Voice wireless module

Claims (6)

Calculating a route to the set destination, updating the route at any time based on a current position indicated by GPS positioning data, and displaying a name of a point on the route close to the current position; Is a navigation system that performs route guidance,
Setting means for setting the destination by using a corresponding page on a map book corresponding to the destination and a grid point position in the page;
Display means for displaying a current position indicated by the GPS positioning data and a point on the route using a corresponding page on a corresponding map book and a grid point position in the page;
A navigation system comprising: When displaying the current position or the points on the route, all pages in the map book and all grid point positions in the page are associated with latitude and longitude data corresponding to each of the grid point positions. 2. The navigation system according to claim 1, wherein information and information in which the position and name of a point on a route are written are referred to. The navigation system according to claim 2, wherein the latitude / longitude data described in the application is data in the same expression format as GPS positioning data. 4. The map book according to claim 1, wherein the map book includes map data corresponding to each of Hokkaido, Tohoku, Kanto, Chubu, Kansai, Chugoku / Shikoku, and Kyushu. The navigation system according to claim 1. The navigation system according to any one of claims 1 to 4, further comprising communication means for downloading the application or the map book from a center via a mobile phone network. A gyro sensor for detecting the attitude of the vehicle, and a communication unit capable of communicating with the center via a mobile phone network are additionally provided, and a signal from the gyro sensor detects that the vehicle has fallen. 2. The navigation system according to claim 1, wherein when the event occurs, the center is notified of the occurrence of an accident.

Images