JP2006153756A - Navigation device, route search method, route search system and input/output device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device capable of reducing a labor required for change or addition of a retrieval function, a route search method, a route search system and an input/output device, and to provide a navigation device capable of reducing a load, and a route search method, a route search system and an input/output device. <P>SOLUTION: This navigation device 10 is equipped with a GPS reception part 13 for detecting own car position and a guide control part 11, and also equipped with a road data storage part 14 for storing road data 15 for searching for a guide route. The guide control part 11 receives coordinate data of a retrieved destination from the input/output device 20, equipped with a retrieved data storage part 28 for retrieving the destination via a transmission/reception control part 12. The guide control part 11 searches for the guide route from own car position to a location indicated by the coordinate data by using the road data 15, based on the coordinate data and the own car position, and also transmits discriminating data 15a corresponding to the calculated guide route to the input/output device 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a navigation device, a route search method, a route search system, and an input / output device.

  Conventionally, a navigation apparatus includes a destination search database, and searches for a corresponding destination from the database according to various input conditions. And the search result was output to the display (for example, refer patent document 1). When a destination is set, a guide route from the current location to the destination is searched and displayed on a map output on the display.

By the way, the search function of the navigation device varies depending on the device, such as 50-sound search, telephone number search, history search, prefecture search, and the like. In addition to searching for destinations, some devices can be configured to provide photographic images of buildings and facilities, information on tenants, etc., search for parking lots, and drive course proposals. It is functional. Furthermore, the input method by the user's operation, the output method of the search result, etc. are devised, and the interface of the navigation device tends to be diversified and multifunctional.
JP 2003-114134 A

  However, in order to further improve the user interface, when changing the search result output method, addition of functions, etc., the essential processing functions of the navigation device are the current location detection processing function and the route search processing function. Regardless, it is necessary to change the software of the navigation device.

  Further, if the navigation device has a multi-function search function, it causes an increase in load on various processes and an increase in the capacity of the storage unit. As a result, the processing speed becomes slow and quick guidance cannot be performed.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a navigation device, a route search method, a route search system, and an input / output device that can reduce labor required for changing or adding a search function. It is to provide.

  Another object of the present invention is to provide a navigation device, a route search method, a route search system, and an input / output device that can reduce the load.

  In order to solve the above-mentioned problems, the invention described in claim 1 is provided with own vehicle position detecting means for detecting the own vehicle position, and road data for searching for a guide route can be read from the road data storage means. In the configured navigation device, the navigation device is connected to the navigation device so as to be able to transmit and receive data, and receives control means for receiving a search result from an input / output device provided with search means for searching for a destination, and the received search result Based on the vehicle position detection means, using the road data, search means for searching for a guide route from the vehicle position to the destination, and the calculated guide route as the route designation data. The gist of the invention is that it includes transmission control means for transmitting to the output device.

The invention according to claim 2 is the navigation device according to claim 1, wherein the search result includes coordinate data of the destination.
The gist of the invention described in claim 3 is the navigation device according to claim 1 or 2, wherein the route designation data includes identification data for identifying a guide route.

  According to a fourth aspect of the present invention, there is provided a navigation device comprising own vehicle position detecting means for detecting the own vehicle position and configured to be able to read road data for searching for a guide route from the road data storage means, A route search method for searching for a route to a destination using the navigation device and an input / output device connected to be capable of transmitting and receiving data, the navigation device comprising: From the entry / output device, the input / output device receives the search result of the destination searched based on the search means, and the road data is determined based on the received search result and the vehicle position detection means. And searching for a guide route from the vehicle position to the destination, and transmitting the calculated guide route to the input / output device as route specification data. The gist.

  According to a fifth aspect of the present invention, there is provided a navigation apparatus comprising own vehicle position detecting means for detecting the own vehicle position and configured to be able to read road data for searching for a guide route from the road data storage means, A route search system having a search means for searching for and having an input / output device connected to the navigation device so as to be able to transmit and receive data, wherein the navigation device is connected to the navigation device so as to be able to transmit and receive data. From the input / output device provided with the search means for searching for the destination, based on the reception control means for receiving the search result, the received search result and the vehicle position detection means, using the road data, Search means for searching for a guide route from the vehicle position to the destination, and the calculated guide route is transmitted to the input / output device as route designation data. And gist that a signal control unit.

  The invention according to claim 6 is provided with own vehicle position detecting means for detecting the own vehicle position, and is connected to a navigation device for searching for a guide route from the own vehicle position to the destination so that data can be transmitted and received. In the input / output device including the display means for displaying the search data storage means for storing the search data for searching for the destination, the search control means for searching the search data storage means, and the search result as the navigation A transmission means for transmitting to the device, a receiving means for receiving a search result from the vehicle position to the destination from the navigation device searching for the guide route based on the search result, and a guide route based on the received search result. The gist is provided with display control means for displaying on the display means.

  According to the first aspect of the present invention, the navigation device includes reception control means for receiving a search result from an input / output device having search means for searching for a destination. In addition, search means for searching for a guide route from the vehicle position to the destination using road data based on the received search result and the vehicle position detection means is provided. Furthermore, the navigation device includes a transmission control unit that transmits the calculated guide route to the input / output device as route designation data. That is, since the navigation device searches for a route to the destination based on the search result received from the input / output device, there is no need to provide a search means for searching for the destination. For this reason, as the search function is added or changed, the software for the input / output device only needs to be changed without changing the software etc. owned by the navigation device, so the labor required for adding or changing the function is reduced. The In addition, since the route search process is performed in the navigation device and the search process is performed in the input / output device to share the processing operation, the load on the navigation device can be reduced.

According to the second aspect of the present invention, the search result received from the input / output device includes the coordinate data of the destination. Therefore, the navigation device can perform a route search based on the received coordinate data. Further, since coordinate data with a small amount of data is transmitted from the input / output device, data transfer for destination designation can be completed in a short time.

  According to the third aspect of the present invention, the route designation data includes identification data for identifying the guide route. For this reason, since the navigation apparatus transmits identification data with a small data amount, not data with a large data amount such as map drawing data, data transfer can be completed in a short time.

  According to the invention described in claim 4, the navigation device receives the search result of the destination from the input / output device having the search means for searching for the destination. Further, based on the received search result and the vehicle position detection means, the road data is used to search for a guide route from the vehicle position to the destination indicated by the search result. Further, the navigation device transmits the calculated guide route to the input / output device as route designation data. That is, the navigation device performs a route search based on the search result received from the input / output device, and thus does not need to include a search means for searching for a destination. For this reason, as the search function is added or changed, the software for the input / output device only needs to be changed without changing the software etc. owned by the navigation device, so the labor required for adding or changing the function is reduced. The In addition, since the route search process is performed in the navigation device and the search process is performed in the input / output device to share the processing operation, the load on the navigation device can be reduced.

  According to the fifth aspect of the present invention, the navigation device includes reception control means for receiving a destination search result from an input / output device having search means for searching for a destination. In addition, based on the received search result and the own vehicle position detection means, search means for searching for a guide route from the own vehicle position to the destination indicated by the search result using road data is provided. Furthermore, the navigation device includes a transmission control unit that transmits the calculated guide route to the input / output device as route designation data. That is, the navigation device performs a route search based on the search result received from the input / output device, and thus does not need to include a search means for searching for a destination. For this reason, as the search function is added or changed, the software for the input / output device only needs to be changed without changing the software etc. owned by the navigation device, so the labor required for adding or changing the function is reduced. The In addition, since the route search process is performed in the navigation device and the search process is performed in the input / output device to share the processing operation, the load on the navigation device can be reduced.

  According to the sixth aspect of the present invention, the input / output device that is connected to the navigation device and includes display means for displaying the vehicle position includes search data storage means that stores search data for searching for a destination. . Further, based on search results, search control means for searching the search data storage means, transmission means for transmitting search results, receiving means for receiving search results from the vehicle position to the destination from the navigation device, Display control means for displaying the guidance route on the display means. For this reason, when adding or changing the search function, only the configuration of the input / output device needs to be changed.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing the configuration of the route search system of this embodiment.
As shown in FIG. 1, the route search system 1 includes a navigation device (hereinafter simply referred to as a navigation device) 10 and an input / output device 20 mounted on a vehicle. The navigation apparatus 10 includes a guidance control unit 11 that constitutes own vehicle position detection means, reception control means, search means, and transmission control means. The guidance control unit 11 is a search module including hardware such as a CPU and RAM for searching a route, and software such as a search program.

The navigation device 10 also includes a transmission / reception control unit 12 that constitutes reception control means and transmission control means. The transmission / reception control unit 12 controls transmission / reception of various data with the input / output device 20 via the cable 7. The transmission / reception control unit 12 and the cable 7 are known interfaces and cables. For example, interfaces and cables conforming to the IEEE 1394 (the Institute of Electrical and Electronic Engineers 1394) standard can be used.

Further, the navigation device 10 includes a GPS (Global Positioning System) receiving unit 13 as a vehicle position detecting unit, and based on radio waves received from GPS satellites, the latitude, longitude,
Calculate the altitude. In addition, the guidance control unit 11 receives various data from the vehicle speed sensor 5 and the direction sensor 6 provided in the vehicle, and calculates the relative movement distance and the relative direction when the radio wave reception status from the GPS satellite is bad. The vehicle position is obtained or the own vehicle position calculated based on the GPS receiving unit 13 is corrected.

  Furthermore, the navigation apparatus 10 includes a road data storage unit 14 as road data storage means. The road data storage unit 14 is composed of a hard disk, and stores road data 15 for each area obtained by dividing the whole country into unit areas. Each road data 15 includes identification data 15a as route designation data that can identify each road, and various information such as road width data, road type data, connection destination node data, intersection data, and the like. The identification data 15a is data unified between the navigation device 10 and the input / output device 20, such as node data, link data, latitude / longitude, and can be identified by both the navigation device 10 and the input / output device 20. It is a lot of data.

  The guidance control unit 11 determines the vehicle position calculated based on the GPS reception unit 13, the vehicle speed sensor 5, and the direction sensor 6, and the destination received from the input / output device 20 via the cable 7 and the transmission / reception control unit 12. Based on each road data 15, optimal routes from the vehicle position to the destination are calculated according to purposes such as the shortest distance and the shortest time.

  The input / output device 20 connected to the navigation device 10 via the cable 7 includes an input / output control unit 21 constituting search control means, transmission means, display control means, search means, and reception means. The input / output control unit 21 includes a drawing module and a search module, and each module includes hardware such as a CPU and software. The input / output control unit 21 is connected to the navigation apparatus 10 through an interface (I / F) 22 such as an IEEE1394 standard connected to the cable 7 so as to be able to transmit and receive various data.

  Further, the input / output device 20 includes a display unit 23. The display unit 23 includes a touch panel 24 as display means for displaying each image and switches 25 constituting search means. The input / output control unit 21 executes various commands by operating the touch panel 24 and the switches 25.

  In addition, the input / output device 20 includes a drawing data storage unit 26 composed of a hard disk. The drawing data storage unit 26 provides screen drawing data for displaying an operation screen such as a menu screen, map drawing data constituting various maps such as a bird's eye view, a plan view, a narrow area map, and a wide area map, and facility information. Drawing data 27 for displaying each image, such as facility drawing data, is stored. The drawing data 27 for displaying various maps is stored in association with nodes, links, area identifiers such as “city” and “private land”. The input / output device 20 extracts necessary drawing data 27 from the drawing data storage unit 26 based on the calculated guide route, and creates map display data. Then, the generated map display data is output to the touch panel 24.

  The input / output device 20 further includes a search data storage unit and a search data storage unit 28 constituting the search unit. The search data storage unit 28 is composed of a hard disk, and stores each search data 30 for searching for destination and facility information. Each search data 30 is created for each registered location. The data structure of the search data 30 will be described with reference to FIG.

  As shown in FIG. 2, each search data 30 includes a header 31, a name 32, coordinate data 33, attribute data 34, and the like. The header 31 is an identifier for identifying each search data 30. The name 32 is a name for explaining the point such as a facility name such as “XX City Hall” and “XX Interchange”. The coordinate data 33 is the coordinate data 33 of the point, and is composed of latitude / longitude or node data and link data, and is associated with the identification data 15a of the road data 15 and the drawing data 27 of the drawing data storage unit 26. It has been. The attribute data 34 stores the phonetic of the point, the address, the telephone number, the business hours of the facility, the facility information such as the tenant, the image data that captured the facility, and the like.

  The search data 30 includes data stored in the search data storage unit 28 in advance, but new search data can be added by a user operation. That is, the user designates a registration point on the map displayed on the touch panel 24. In addition, the destination registration screen is called on the touch panel 24 and a name 32 such as “XX House” and attribute data 34 such as a telephone number are input. The input / output control unit 21 calculates the coordinates of the designated registration point based on the drawing data 27 and stores it as new search data 30 together with the input name 32 and attribute data 34.

  Next, the route search method of this embodiment is demonstrated according to FIG. First, the input / output device 20 waits for an operation of the touch panel 24 for searching for a destination (step S1-1). For example, a search screen 40 as shown in FIG. 4 is displayed on the touch panel 24. The search screen 40 displays each selection unit 40a for indexing a 50 sound search, a search from a telephone number, a search from a sightseeing spot, and a search from a facility.

  When one of the selection units 40a displayed on the search screen 40 is selected with a finger (YES in step S1-1), the destination is searched (step S1-2). More specifically, the input / output control unit 21 reads out the drawing data 27 when, for example, the selection unit 40a indexing “50-sound search” is selected, for example, as shown in FIG. Such a search screen 41 on which each character selection unit 41 a is displayed is displayed on the touch panel 24. Each character selection unit 41a is displayed so that it can be selected with a finger. When the character selection unit 41a is selected and a search character is input to the input / output device 20, the input / output control unit 21 searches for a facility, a point, or the like that includes the character string in the name 32. Then, the input / output control unit 21 outputs the corresponding search data 30 (search result) to the touch panel 24 together with the drawing data 27 for displaying the screen (step S1-3). As a result, as shown in FIG. 6, a search result screen 42 is output on the touch panel 24. On the search result screen 42, for example, a selection unit 42a for determining a destination is displayed.

  Then, the input / output device 20 waits for an operation for determining the destination (step S1-4). For example, when the selection unit 42a of the search result screen 42 is selected and it is determined that the destination has been determined (YES in step S1-4), the coordinate data 33 of the destination (name 32) is stored in the navigation device 10. (Step S1-5). More specifically, the input / output control unit 21 searches the search data 30 of the destination (name 32) selected on the search result screen 42, and extracts the coordinate data 33 of the search data 30. Then, the coordinate data 33 is transmitted to the navigation device 10 via the interface 22 and the cable 7.

  The guidance control unit 11 of the navigation device 10 receives the coordinate data 33 and a command for executing a route search from the input / output device 20 via the cable 7 and the transmission / reception control unit 12 (step S1-6). And the guidance control part 11 performs a route search process based on this coordinate data 33 (step S1-7). The guidance control unit 11 calculates an optimal guide route from the vehicle position to the destination based on the coordinate data 33 and the vehicle position, and performs map matching processing for positioning the vehicle position on the road.

  Next, the guidance control unit 11 transmits the search result, that is, the calculated guidance route as route designation data to the input / output device 20 via the transmission / reception control unit 12 and the cable 7 (step S1-8). In the present embodiment, the guidance control unit 11 reads and transmits the identification data 15a corresponding to the calculated guidance route. Moreover, the guidance control part 11 also transmits the data which show the own vehicle position positioned by map matching.

  The input / output controller 21 of the input / output device 20 that has received the search result collates the received identification data 15a with the node data, link data, etc. stored in the drawing data 27, and reads the corresponding drawing data 27 (step). S1-9). Then, map display data is created using the read drawing data 27, and the guidance route, the vehicle position, etc. are superimposed on the map display data and displayed on the touch panel 24 (step S1-10). Thereby, the guidance route, the vehicle position, and the map are displayed on the touch panel 24.

According to the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the navigation device 10 receives the coordinate data 33 of the destination via the transmission / reception control unit 12 and the cable 7 from the input / output device 20 having a search function for searching for the destination. . Then, the navigation device 10 uses the road data 15 included in the navigation device 10 based on the received coordinate data 33 and the own vehicle position calculated by the navigation device 10, and the point indicated by the coordinate data 33 from the own vehicle position. The guide route to was searched. Further, the navigation device 10 transmits the calculated guidance route to the input / output device 20 via the transmission / reception control unit 12 and the cable 7 as route designation data.

  That is, the navigation device 10 can search for a guidance route based on the coordinate data 33 received from the input / output device 20 via the cable 7, so that a search module for searching for a destination is integrated with the navigation device 10 side. There is no need to prepare. For this reason, when adding / changing the search function, the software / hardware of only the input / output device 20 may be changed or replaced with the input / output device 20 having a different module. There is no need to make any changes. In addition, the destination search process is performed in the input / output device 20 and the route search process is performed in the navigation apparatus 10 to share the processing operation. Therefore, the navigation apparatus 10 does not need to perform both the destination search process and the route search process as in the conventional case, and thus the load of the arithmetic processing operation is reduced. Furthermore, since coordinate data with a small amount of data is transmitted from the input / output device 20, data transfer for destination designation can be completed in a short time.

  (2) In the above embodiment, the navigation device 10 transmits the identification data 15 a such as node data and link data corresponding to the calculated guide route to the input / output device 20. In the input / output device 20, the guide route, the vehicle position, and the map image are displayed on the touch panel 24 based on the identification data 15a. For this reason, the navigation device 10 (guidance control unit 11) does not need to perform the reading process of the drawing data 27 corresponding to the guidance route, and the load of the arithmetic processing of the navigation device 10 can be reduced. In addition, since the identification data 15a having a small data amount is transmitted from the navigation device 10, the data transfer can be completed in a short time.

In addition, you may change the said embodiment as follows.
In the above embodiment, the drawing data storage unit 26 may be provided in the navigation device 10. In this case, drawing data 27 based on the guidance route calculated by the navigation device 10 is transmitted to the input / output device 20, and the input / output device 20 outputs the received drawing data 27 to the touch panel 24.

  Each road data 15 may be stored in an optical disk or the like inserted into a disk drive (not shown) of the navigation device 10. The drawing data 27 and the search data 30 may be stored in an optical disk or the like inserted into a disk drive (not shown) provided in the input / output device 20. At this time, the input / output device 20 only needs to include a search module including software such as a search program and hardware such as a CPU.

The navigation device 10 may be provided with the vehicle speed sensor 5 or the direction sensor 6 integrally.
The search data storage unit 28 may be provided in a management server (none of which is shown) connected via a network (for example, a mobile phone network). In this case, the input / output device 20 connects to the management server periodically or when designated, and receives the search data 30 stored in the management server.

  The search data 30 indicates the position of the destination, and may have data corresponding to the road data 15 stored in the road data storage unit 14 of the navigation device 10 and may have a data configuration other than that shown in FIG.

  The navigation device 10 and the input / output device 20 may be connected by a high-speed serial bus other than the IEEE 1394 standard, or the navigation device 10 and the input / output device 20 may be connected by optical communication. In short, any interface may be used as long as it can connect the navigation device 10 and the input / output device 20 in a separable manner.

The block diagram explaining the structure of the route search system of this embodiment. Explanatory drawing of the data structure of the search data stored in the input / output device. Explanatory drawing of the process sequence of this embodiment. Explanatory drawing of the screen displayed on the input / output device. Explanatory drawing of the screen displayed on the input / output device. Explanatory drawing of the screen displayed on the input / output device.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Route search system, 10 ... Navigation apparatus, 11 ... Own vehicle position detection means, reception control means, search means, guidance control part which comprises transmission control means, 12 ... data transmission / reception which comprises reception control means, transmission control means Control part, 13 ... GPS receiving part as own vehicle position detecting means, 14 ... Road data storage part as road data storing means, 15 ... Road data, 15a ... Identification data as route designation data, 20 ... Input / output device, 21: Search control means, transmission means, display control means, input / output control section constituting search means and reception means, 22 ... switch constituting search means, 24 ... touch panel constituting display means, 27 ... search data storage means And a search data storage unit constituting search means, 30 ... search data, 33 ... coordinate data.

Claims (6)

In a navigation device comprising own vehicle position detecting means for detecting the own vehicle position and configured to be able to read road data for searching for a guide route from road data storage means,
A reception control means for receiving a search result from an input / output device connected to the navigation device so as to be able to transmit and receive data and having a search means for searching for a destination;
Search means for searching for a guide route from the vehicle position to the destination using the road data based on the received search result and the vehicle position detection means;
A navigation apparatus comprising: a transmission control means for transmitting the calculated guide route to the input / output device as route designation data. The navigation device according to claim 1, wherein
The navigation apparatus characterized in that the search result includes coordinate data of the destination. The navigation device according to claim 1 or 2,
The navigation device according to claim 1, wherein the route designation data includes identification data for identifying a guidance route. A navigation device comprising own vehicle position detecting means for detecting the own vehicle position and configured to be able to read road data for searching for a guide route from the road data storage means;
A route search method comprising a search means for searching for a destination, and searching for a route to the destination using the navigation device and an input / output device connected to transmit and receive data.
The navigation device is
Receiving from the input / output device a search result of the destination searched by the input / output device based on the search means;
Searching for a guide route from the vehicle position to the destination using the road data based on the received search result and the vehicle position detection means;
Transmitting the calculated guide route as route specification data to the input / output device. A navigation device configured to read out road data for searching for a guide route from road data storage means, and a search means for searching for a destination, comprising a vehicle position detection means for detecting the vehicle position; A route search system having a navigation device and an input / output device connected to transmit and receive data,
The navigation device is
A reception control means for receiving a search result from an input / output device connected to the navigation device so as to be able to transmit and receive data and having a search means for searching for a destination;
Search means for searching for a guide route from the vehicle position to the destination using the road data based on the received search result and the vehicle position detection means;
A route search system comprising transmission control means for transmitting the calculated guide route to the input / output device as route designation data. The vehicle is provided with a vehicle position detecting means for detecting the vehicle position, connected to a navigation device for searching for a guide route from the vehicle position to the destination so that data can be transmitted and received, and provided with a display means for displaying the vehicle position. In the output device,
Search data storage means for storing search data for searching for a destination;
Search control means for searching the search data storage means;
Transmitting means for transmitting a search result to the navigation device;
Receiving means for receiving a search result from the vehicle position to the destination from the navigation device that searched for a guide route based on a search result;
An input / output device comprising: display control means for displaying a guidance route on the display means based on a received search result.

Images