WO2012046268A1 - ナビゲーション装置及び携帯情報端末 - Google Patents
ナビゲーション装置及び携帯情報端末 Download PDFInfo
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- WO2012046268A1 WO2012046268A1 PCT/JP2010/005963 JP2010005963W WO2012046268A1 WO 2012046268 A1 WO2012046268 A1 WO 2012046268A1 JP 2010005963 W JP2010005963 W JP 2010005963W WO 2012046268 A1 WO2012046268 A1 WO 2012046268A1
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- Prior art keywords
- map
- display
- portable information
- information terminal
- map display
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3667—Display of a road map
- G01C21/367—Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3688—Systems comprising multiple parts or multiple output devices (not client-server), e.g. detachable faceplates, key fobs or multiple output screens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/38—Electronic maps specially adapted for navigation; Updating thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
Definitions
- the present invention relates to a navigation system in which a portable information terminal that downloads map data managed by a server and displays a map and a navigation device having a display screen larger than the portable information terminal execute a navigation process.
- the map data used by the map display application software for mobile phones has a compact capacity, and the mobile phone downloads the map data around itself from the server that manages the map data and displays the map.
- map data for mobile phones is updated on the server side
- a map of map data or POI (Point Of Interest) information uses map data stored in a storage medium such as a DVD or HDD. In many cases, it is updated to the latest information as compared with a conventional in-vehicle navigation device.
- the mobile phone since the mobile phone has a small display device, it has a drawback in that when the map is scrolled, the positional relationship between the position of the mobile phone and the position of the mobile phone is not known globally. Furthermore, since the map is downloaded from the server when the map scale is changed or scrolled, it takes time until the map is displayed, and the usability of the user may be poor.
- the vehicle-mounted navigation device provided in the vehicle has good positional accuracy because it can use sensor information on the vehicle side.
- in-vehicle navigation devices have a display screen that is much larger than a mobile phone, and a map stored in a storage device that can use a high-performance arithmetic device for display processing and can be read from the device. Since the data is used, the map scrolls quickly and it is easy to grasp the positional relationship between the user's position and the scroll destination.
- a navigation system that uses map display application software for mobile phones has recently been proposed in an in-vehicle information system having a car navigation function mounted on a vehicle.
- a portable information terminal such as a mobile phone having a small display screen acquires position information such as GPS (Global Positioning System) information, traffic information, and destination information from an in-vehicle information system.
- GPS Global Positioning System
- An information transfer device that executes navigation processing is disclosed.
- a mobile phone navigation function that is convenient for the user is realized by exchanging position information and POI information between the mobile phone and the vehicle.
- the mobile phone registers the location data (POI information) received from the car navigation device and the corresponding phone number as phone book information.
- the phone book information is searched by matching the received location data with the location data corresponding to the telephone number.
- the location data can be directly set by the phone number and the name.
- a telephone number, a name, etc. can be searched by matching the position data received from the navigation device and the position data registered in advance in the phone book information.
- the navigation device disclosed in Patent Document 3 has a small display screen, for example, in a navigation device such as PND (Portable Navigation) Device, in order to clarify the positional relationship between the vehicle position and the destination, By connecting the reference point (for example, own vehicle position) of the map display and the scroll position or the destination with a line segment, it is easy to grasp the mutual positional relationship.
- PND Portable Navigation
- JP 2008-275544 A Japanese Patent No. 4228561 JP 2008-304465 A
- Patent Documents 1 to 3 if the user himself / herself does not recognize the relationship between the map displayed on the in-vehicle device and the map displayed on the mobile phone side, There has been a problem that the use of processing such as destination setting using the display and current position confirmation becomes worse. For example, each time a map is displayed, it is necessary to associate the map orientation, scale, and map display center position between the in-vehicle system and the mobile phone.
- the present invention has been made to solve the above-described problems, and improves visibility and operability in map display processing, setting a destination on a map, checking a current position, scrolling a map, and the like.
- An object of the present invention is to obtain a navigation device and a portable information terminal that realizes a navigation system that can be used.
- the navigation device is obtained from a portable information terminal via a communication unit that communicates with a portable information terminal having a function of displaying a map including its own position, a display unit that performs map display, and the communication unit.
- a map display control unit that controls to display the map display content of the portable information terminal on the display unit in the direction of the map display of the portable information terminal based on the information related to the map display.
- FIG. 1 It is a block diagram which shows the structure of the navigation system by Embodiment 1 of this invention. It is a figure which shows the map display screen of the vehicle-mounted information system and mobile telephone terminal in the conventional navigation system. It is a figure which shows the map display screen of the vehicle-mounted information system in a navigation system by Embodiment 1, and a mobile telephone terminal.
- 3 is a flowchart showing a flow of map display processing by the mobile phone terminal according to the first embodiment.
- 3 is a flowchart showing a flow of map display processing by the in-vehicle information system according to the first embodiment.
- FIG. 1 is a block diagram showing a configuration of a navigation system according to Embodiment 1 of the present invention.
- the navigation system of Embodiment 1 includes an in-vehicle information system 1 corresponding to the navigation device of the present invention and a mobile phone terminal 2 corresponding to the mobile information terminal of the present invention.
- the mobile phone terminal 2 can access a plurality of application sites presented from the mobile phone server 4 by communicating with the mobile phone server 4 via the base station 3.
- the mobile phone application server 5 is a server that manages a map display application for mobile phones among the application sites presented by the mobile phone server 4.
- the in-vehicle information system 1 is an in-vehicle system that performs navigation processing in cooperation with the mobile phone terminal 2, and includes a GPS receiver 6, a vehicle speed sensor 7, a CD / DVD drive device 8, a short-range wireless communication unit 9, an HDD 10, An internal memory 11, a touch panel 12, a drawing LSI 13, a liquid crystal monitor 14, a radio receiver 15, an amplifier 16, a speaker 17, and a main CPU 18 are provided.
- the GPS receiver 6 is a receiver that receives position information of the host vehicle from a GPS satellite
- the vehicle speed sensor 7 is a sensor that detects a vehicle speed pulse for calculating the vehicle speed of the host vehicle.
- the CD / DVD drive device 8 reproduces the AV source stored in the storage medium 8a such as a CD or DVD.
- the short-range wireless communication unit 9 is a component that performs short-range wireless communication with the mobile phone terminal 2, and is realized, for example, by a communication device that performs Bluetooth (registered trademark, hereinafter omitted) communication.
- the communication between the in-vehicle information system 1 and the mobile phone terminal 2 may be a wired or wireless LAN (Local Area Network) or the like other than Bluetooth communication. Further, infrared communication, WiFi communication, or USB may be used.
- An HDD (Hard Disk Drive Device) 10 is a mass storage device mounted in the in-vehicle information system 1 and stores a map database (hereinafter abbreviated as map DB), POI information, and a program.
- map DB is a database in which map data used in navigation processing is registered.
- POI information is information in which the location of the POI on the map or detailed information related thereto is described.
- the program stored in the HDD 10 is an application program for in-vehicle information processing executed by the main CPU 18. For example, there is an application program for navigation that displays a map.
- the internal memory 11 is a memory serving as a work area when the main CPU 18 executes an application program for in-vehicle information processing.
- the touch panel 12 is provided on the display screen of the liquid crystal monitor 14 and accepts operations such as software keys and screen scrolling displayed on the display screen.
- the drawing LSI 13 is a circuit that displays a map on the display screen of the liquid crystal monitor 14 in accordance with an instruction from the main CPU 18.
- the radio receiver 15 is a receiver that receives a radio broadcast. For example, the radio receiver 15 is tuned according to an operation of a channel selection button (not shown).
- An audio signal from the main CPU 18 is amplified by the amplifier 16 and output through the speaker 17. Examples of the audio signal include audio reproduced by the CD / DVD drive device 8, radio broadcast audio received by the radio receiver 15, and route guidance audio for navigation processing.
- the main CPU 18 is a CPU that controls each component in the in-vehicle information system 1.
- the main CPU 18 performs functions as the map display control unit 19 and the navigation processing unit 20 by executing an application program for in-vehicle information processing stored in the HDD 10.
- the map display control unit 19 is a component that controls the map display using the map data of the map DB stored in the HDD 10, and controls the drawing LSI 13 to display the map on the display screen of the liquid crystal monitor 14. As will be described later with reference to FIGS. 2 and 3, the map display control unit 19 sets the drawing LSI 13 so as to display a map in cooperation with the mobile phone terminal 2 based on information received from the mobile phone terminal 2.
- the navigation processing unit 20 is a component that executes navigation processing of the host vehicle using the position information of the host vehicle obtained by the GPS receiver 6 and the map data of the map DB stored in the HDD 10.
- the mobile phone terminal 2 is a mobile information terminal that performs navigation processing in cooperation with the in-vehicle information system 1, and includes a GPS receiver 21, a display unit 22, a short-range wireless communication unit 23, a communication unit 24, an antenna 25, and a CPU 26.
- the GPS receiver 21 is a receiver that receives position information of the mobile phone terminal 2 from a GPS satellite.
- the display unit 22 displays various menu screens and displays a map in a mobile phone map display application.
- the short-range wireless communication unit 23 is a component that performs short-range wireless communication with the in-vehicle information system 1 and can be realized by using, for example, a communication module that performs Bluetooth communication.
- the communication between the in-vehicle information system 1 and the mobile phone terminal 2 may be a wired or wireless LAN (Local Area Network) or the like in addition to the Bluetooth communication.
- the communication unit 24 communicates with the base station 3 via the antenna 25 to make a call with another mobile phone terminal on the mobile phone network, or to communicate with the mobile phone server 4 for data communication. It is.
- the CPU 26 is a CPU that controls each component in the mobile phone terminal 2, and by executing the mobile phone map display application program downloaded from the mobile phone application server 5, the mobile phone map display control unit 27 and The function as the navigation processing unit 28 is exhibited.
- the mobile phone map display control unit 27 is a component that controls map display using the above-described mobile phone map data, and controls the display unit 22 to display a map on the display screen. This mobile phone map display control unit 27 cooperates with the in-vehicle information system 1 by transmitting information related to the map display of the terminal 2 to the in-vehicle information system 1 as will be described later with reference to FIGS. Control the map display.
- the navigation processing unit 28 is a component that executes navigation processing using the position information of the terminal 2 obtained by the GPS receiver 21 and the map data for the mobile phone.
- the mobile phone application server 5 includes a communication unit 29, a server-side storage device 30, and a search unit 31.
- the communication unit 29 is a component that communicates with the mobile phone terminal 2 via the mobile phone server 4.
- the server-side storage device 30 is a storage device that stores a mobile phone map display application program executed by the mobile phone terminal 2 and a mobile phone map database (hereinafter abbreviated as mobile phone map DB).
- the search unit 31 is a component that searches the server-side storage device 30 in response to a request from the mobile phone terminal 2, and searches the map data or application of the search result in response to the request via the communication unit 29. Reply to 2.
- FIG. 2 is a diagram showing a map display screen of an in-vehicle information system and a mobile phone terminal in a conventional navigation system.
- FIG. 2 (a) shows a map display of a conventional mobile phone terminal 2A
- FIG. 2 shows a navigation system in which the in-vehicle information system 1A and the mobile phone terminal 2A cooperate to perform navigation processing by applying a conventional technique represented by Patent Document 1.
- the mobile phone terminal 2A is brought into a vehicle on which the in-vehicle information system 1A is mounted. That is, the traveling direction of the mobile phone terminal 2A is the same as the traveling direction of the host vehicle on which the in-vehicle information system 1A is mounted.
- the display screen 22A of the mobile phone terminal 2A displays a direction display field 22B, a scale display field 22C, a symbol 22D indicating the current position, and a travel route 22E.
- the direction is a map display (north up) with north facing upward.
- the display screen 14A of the in-vehicle information system 1A displays an azimuth display field 14B, a scale display field 14C, a symbol 14D indicating the current position of the host vehicle, and a travel route 14E.
- the map display direction is the map display (heading up) in which the traveling direction of the vehicle is on the upper side.
- the in-vehicle information system 1A and the mobile phone terminal 2A exchange navigation information by exchanging POI information and the like, but the map display is not linked, and the map display operates independently. For this reason, as shown in FIGS. 2 (a) and 2 (b), the case where the map display direction differs between the in-vehicle information system 1A and the mobile phone terminal 2A occurs.
- the user it is difficult for the user to visually grasp the map display correspondence relationship between the in-vehicle information system 1A and the mobile phone terminal 2A.
- the in-vehicle information system 1A and the mobile phone terminal 2A display a map in the same range, if the orientation of the map display is different, which position of the display screen 22A of the mobile phone terminal 2A is in the in-vehicle information system 1A. It is difficult to understand which position on the display screen 14A corresponds to.
- the correspondence relationship between the map displays is further visually grasped. It becomes difficult and user-friendliness worsens.
- FIG. 3 is a diagram showing a map display screen of the in-vehicle information system and the mobile phone terminal in the navigation system according to the first embodiment
- FIG. 3A shows a map display of the mobile phone terminal 2 of the first embodiment
- FIG. 3B shows a map display of the in-vehicle information system 1 according to the first embodiment.
- the mobile phone terminal 2 is brought into a vehicle on which the in-vehicle information system 1 is mounted. That is, the traveling direction of the mobile phone terminal 2 is the same as the traveling direction of the host vehicle on which the in-vehicle information system 1 is mounted. That is, the traveling direction of the vehicle displayed on the mobile phone terminal 2 and the traveling direction of the host vehicle displayed on the in-vehicle information system 1 are the same.
- the display screen 22a of the mobile phone terminal 2 displays an orientation display field 22b, a scale display field 22c, a symbol 22d indicating the current position, and a travel route 22e, as in the conventional case.
- the direction of the map display is a map display (heading up) with the traveling direction of the terminal 2 (the traveling direction of the host vehicle) on the upper side.
- the display screen 14a of the in-vehicle information system 1 displays an azimuth display column 14b, a scale display column 14c, a symbol 14d indicating the current position of the host vehicle, and a travel route 14e.
- the direction of the map display is heading up in cooperation with the mobile phone terminal 2.
- map display settings are synchronized between the in-vehicle information system 1 and the mobile phone terminal 2. That is, the mobile phone terminal 2 transmits information related to the map display, for example, information indicating the direction of the map display, the current position of the terminal 2 and the traveling direction, to the in-vehicle information system 1 via the short-range wireless communication. 1 displays a map with the same map display direction, current position, and traveling direction as the mobile phone terminal 2 based on this information. As a result, the user can easily visually grasp the correspondence between the map displays of the in-vehicle information system 1 and the mobile phone terminal 2.
- FIG. 4 is a flowchart showing a flow of map display processing by the mobile phone terminal of the first embodiment
- FIG. 5 is a flowchart showing a flow of map display processing by the in-vehicle information system of the first embodiment.
- the CPU 26 of the mobile phone terminal 2 establishes a communication connection with the mobile phone application server 5 via the communication unit 24 in accordance with an instruction input using an operation unit (not shown).
- a telephone map display application is downloaded and executed (step ST1). Thereby, the CPU 26 functions as the mobile phone map display control unit 27 and the navigation processing unit 28.
- the mobile phone map display control unit 27 downloads the map data from the mobile phone application server 5 via the communication unit 24, and displays the map on the display screen of the display unit 22 (step ST2). Subsequently, the mobile phone map display control unit 27 instructs the short-range wireless communication unit 23 to establish short-range wireless communication with the in-vehicle information system 1 (step ST3).
- the mobile phone map display control unit 27 displays an operation input screen on the display unit 22 as an HMI (Human Machine ⁇ Interface) provided by the mobile phone map display application, and accepts a user's operation input.
- HMI Human Machine ⁇ Interface
- the operation input screen various menu screens related to navigation processing are conceivable, but a scroll operation using the map display screen as the operation screen may be used.
- step ST4 When an operation input is made (step ST4), the mobile phone map display control unit 27 downloads map data corresponding to the operation from the mobile phone application server 5 via the communication unit 24, and the display unit 22 A map is displayed on the display screen (step ST5).
- the mobile phone map display control unit 27 uses the short-range wireless communication via the short-range wireless communication unit 23 to change the current position, the map scale, and the map display direction as information on the map display in the display unit 22. It transmits to the vehicle-mounted information system 1 (step ST6).
- the map display control unit 19 reads map data necessary for navigation of the host vehicle from the HDD 10 in accordance with an instruction from the navigation processing unit 20 and controls the drawing LSI 13 to display the liquid crystal monitor 14. The map indicated by the map data is displayed on the screen (step ST1a). Subsequently, the map display control unit 19 instructs the short-range wireless communication unit 9 to establish short-range wireless communication with the mobile phone terminal 2 (step ST2a).
- the short-range wireless communication unit 9 receives the current position of the mobile phone terminal 2, the map scale on the map display on the display unit 22, and the map display direction, which are transmitted from the mobile phone terminal 2 in step ST 6 described above. These pieces of information are input from the short-range wireless communication unit 9 to the map display control unit 19 (step ST3a). Thereafter, the map display control unit 19 displays the map display center on the screen of the liquid crystal monitor 14, the map display direction, and the map scale, the current position input from the mobile phone terminal 2 via the short-range wireless communication unit 9, the display The drawing LSI 13 is controlled to change according to the map scale and the map display direction in the map display of the unit 22.
- the drawing LSI 13 matches the map display on the screen of the liquid crystal monitor 14 with the current position of the mobile phone terminal 2, the map scale in the map display of the display unit 22, and the direction of the map display 2.
- the map display direction, current position, and travel direction map display are changed (step ST4a).
- the screen of the liquid crystal monitor 14 of the in-vehicle information system 1 is larger than the screen of the display unit 22 of the mobile phone terminal 2, a wider range map than the mobile phone terminal 2 can be displayed.
- the in-vehicle information system 1 communicates with the mobile phone terminal 2 having a function of displaying a map including its own position, the map display, On the basis of the information about the map display acquired from the mobile phone terminal 2 via the short-range wireless communication unit 9 and the liquid crystal monitor 14 that performs the map display of the map display of the mobile phone terminal 2 And a map display control unit 19 that controls the liquid crystal monitor 14 to display in the direction.
- the mobile phone terminal 2 may be configured to change the map display according to the current position of the host vehicle, the map scale, and the map display direction received from the in-vehicle information system 1.
- the in-vehicle information system 1 when the current position or registration point displayed on the display screen 22 a of the liquid crystal monitor 14 is operated (pressed) using the touch panel 12 or the like, the operated current position or registration point is displayed on the mobile phone terminal. You may make it display on 2 display parts 22. FIG. For example, when the current position or registered point displayed on the display screen 22a of the liquid crystal monitor 14 is operated by the map display control unit 19, the current position or the registered point position is used as the information related to the map display. 9 is transmitted to the mobile phone terminal 2 by short-range wireless communication via 9.
- the mobile phone map display control unit 27 When the mobile phone map display control unit 27 receives the operated current position or registered location from the in-vehicle information system 1 via the short-range wireless communication unit 23, the mobile phone map display control unit 27 displays the current location or registered location on the display unit 22. Display on the screen.
- FIG. 1 an example in which a map is displayed between the in-vehicle information system 1 and the mobile phone terminal 2 in accordance with the map display direction, the current position, and the map scale is shown.
- the direction of the map display is similarly changed in the in-vehicle information system.
- the basic configuration of the navigation system according to the second embodiment is the same as the configuration of FIG. 1 shown in the first embodiment, but the map display direction is changed according to the inclination of the mobile phone terminal. It is different. Therefore, refer to FIG. 1 for configurations other than the mobile phone terminal in the system.
- FIG. 6 is a block diagram showing the configuration of the mobile phone terminal according to Embodiment 2 of the present invention.
- a mobile phone terminal 2a is a mobile information terminal that performs navigation processing in cooperation with the in-vehicle information system 1, as in the first embodiment, and includes a GPS receiver 21, a display unit 22, and short-range wireless communication.
- the angle sensor 32 is a sensor that detects the inclination of the mobile information terminal 2a in the same plane as the screen of the display unit 22 of the mobile phone terminal 2a.
- the CPU 26a is a CPU that controls each component in the mobile phone terminal 2a, executes the mobile phone map display application program downloaded from the mobile phone application server 5, and executes the mobile phone map display control unit 27a and the navigation.
- the function as the processing unit 28 is exhibited.
- the mobile phone map display control unit 27 a is a component that controls the map display using the mobile phone map data downloaded from the mobile phone application server 5.
- the mobile phone map display control unit 27 a of the self-terminal 2 a obtained by the angle sensor 32. Map display corresponding to the tilt is performed on the screen of the display unit 22.
- FIG. 7 is a diagram showing a map display screen between the in-vehicle information system and the mobile phone terminal with a tilt of 0 degrees in the navigation system of the second embodiment
- FIG. 7 (a) shows the map display of the mobile phone terminal 2a
- FIG. 7B shows a map display of the in-vehicle information system 1 according to the second embodiment.
- the mobile phone terminal 2a is brought into a vehicle on which the in-vehicle information system 1 is mounted. That is, the traveling direction of the mobile phone terminal 2a is the same as the traveling direction of the host vehicle on which the in-vehicle information system 1 is mounted.
- the display screen 22a of the mobile phone terminal 2a has an orientation display field 22b, a scale display field 22c, a symbol 22d indicating the current position, a travel route 22e, and the vicinity of the travel route 22e. Pond 33 is displayed, and the map display direction is north up.
- the mobile phone map display control unit 27a uses the current position, the map scale, the map display direction (north up), and the mobile information terminal 2a in the same plane as the display screen 22a as information on the map display of the display unit 22. Is transmitted to the in-vehicle information system 1 by short-range wireless communication via the short-range wireless communication unit 23.
- the map display control unit 19 of the in-vehicle information system 1 receives the map display center of the screen of the liquid crystal monitor 14, the direction of map display, and the map scale, the current position received from the mobile phone terminal 2 a, and the map scale in the map display of the display unit 22. Then, the drawing LSI 13 is controlled so as to change in accordance with the direction of the map display and the inclination of the mobile phone terminal 2a. In accordance with an instruction from the map display control unit 19, the drawing LSI 13 displays the map display on the screen of the liquid crystal monitor 14, the current position of the mobile phone terminal 2a, the map scale in the map display on the display unit 22, and the map display direction (north-up).
- the display screen 14a of the in-vehicle information system 1 includes an orientation display column 14b, a scale display column 14c, a symbol 14d indicating the current position of the host vehicle, a travel route 14e, and a pond 33. Is displayed, and the map is displayed with the same map display direction, current position, and traveling direction as the mobile phone terminal 2a.
- FIG. 8 is a diagram showing a map display screen of the in-vehicle information system and the mobile phone terminal having an inclination of 45 degrees in the navigation system of the second embodiment
- FIG. 8A shows the map display of the mobile phone terminal 2a
- FIG. 8B shows a map display of the in-vehicle information system 1 according to the second embodiment.
- the upper side (side a side) of the display screen 22a when the portable information terminal 2a is tilted 45 degrees in the same plane as the display screen 22a faces north, and the map is displayed in the north-up direction. Shows the case.
- the map display control unit 27a for the mobile phone uses the same plane as the display screen 22a of the mobile phone terminal 2a as the current position, the map scale, the direction of the map display (north up), as information related to the map display in the display unit 22.
- the inclination (45 degrees) of the portable information terminal 2 a is transmitted to the in-vehicle information system 1 by short-range wireless communication via the short-range wireless communication unit 23.
- the map display control unit 19 of the in-vehicle information system 1 receives the map display center of the screen of the liquid crystal monitor 14, the direction of map display, and the map scale, the current position received from the mobile phone terminal 2 a, and the map scale in the map display of the display unit 22. Then, the drawing LSI 13 is controlled so as to change in accordance with the direction of the map display and the inclination of the mobile phone terminal 2a. In accordance with an instruction from the map display control unit 19, the drawing LSI 13 displays the map display on the screen of the liquid crystal monitor 14, the current position of the mobile phone terminal 2a, the map scale in the map display on the display unit 22, and the map display direction (north-up).
- the display content of the display screen 22a of the mobile phone terminal 2a tilted by 45 degrees is displayed on the screen of the liquid crystal monitor 14 of the in-vehicle information system 1. That is, as shown in FIG. 8B, the in-vehicle information system 1 does not display a map so that the upper side of the display screen 14a faces north, and the same map display direction, current position, and own vehicle as the mobile phone terminal 2a. The map is rotated 45 degrees so as to be in the traveling direction.
- the screen of the liquid crystal monitor 14 of the in-vehicle information system 1 is larger than the screen of the display unit 22 of the mobile phone terminal 2a, it is possible to display a wider range map than the mobile phone terminal 2a.
- FIG. 9 is a diagram showing a map display screen of the in-vehicle information system and the mobile phone terminal having a tilt of 90 degrees in the navigation system of the second embodiment
- FIG. 9A shows the map display of the mobile phone terminal 2a
- FIG. 9B shows a map display of the in-vehicle information system 1 according to the second embodiment.
- the upper side (side a side) of the display screen 22a when the portable information terminal 2a is tilted 90 degrees in the same plane as the display screen 22a faces north, and the map is displayed in the north-up state. Shows the case.
- the map display control unit 27a for the mobile phone uses the current position, the map scale, the direction of the map display (north up), and the inclination (90 degrees) of the mobile phone terminal 2a as information related to the map display in the display unit 22. It transmits to the vehicle-mounted information system 1 by near field communication via the near field communication unit 23.
- the map display control unit 19 of the in-vehicle information system 1 receives the map display center of the screen of the liquid crystal monitor 14, the direction of map display, and the map scale, the current position received from the mobile phone terminal 2 a, and the map scale in the map display of the display unit 22. Then, the drawing LSI 13 is controlled so as to change in accordance with the direction of the map display and the inclination of the mobile phone terminal 2a. In accordance with an instruction from the map display control unit 19, the drawing LSI 13 displays the map display on the screen of the liquid crystal monitor 14, the current position of the mobile phone terminal 2a, the map scale in the map display on the display unit 22, and the map display direction (north-up).
- the display content of the display screen 22a when the portable information terminal 2a is tilted 90 degrees within the same plane as the display screen 22a is displayed on the screen of the liquid crystal monitor 14 of the in-vehicle information system 1. That is, as shown in FIG. 9B, the in-vehicle information system 1 does not display a map so that the upper side of the display screen 14a faces north, and the same map display direction, current position, and own vehicle as the mobile phone terminal 2a. The map is rotated 90 degrees so as to be in the traveling direction.
- the screen of the liquid crystal monitor 14 of the in-vehicle information system 1 is larger than the screen of the display unit 22 of the mobile phone terminal 2a, it is possible to display a wider range map than the mobile phone terminal 2a.
- the mobile phone terminal 2a When the mobile phone terminal 2a is displaying a map with north-up so that the upper side (side a side) of the display screen 22a always faces north, the mobile information terminal 2a is moved 45 degrees in the same plane as the display screen 22a. When tilted 90 degrees, a map is displayed as shown in FIGS. 8 (a) and 9 (a). Conventionally, since the direction of map display is not coordinated between the mobile phone terminal and the in-vehicle information system, when the conventional in-vehicle information system displays the map in a north-up manner, it is the same as the display screen 22a of the mobile phone terminal 2a. Regardless of the inclination of the portable information terminal 2a in the plane, the map display as shown in FIG. 7B remains. For this reason, it becomes difficult to visually grasp the correspondence between the map display of the mobile phone terminal 2a and the in-vehicle information system 1, and the usability is deteriorated for the user.
- the in-vehicle information system 1 is tilted as shown in FIGS. 8B and 9B by inputting information indicating the tilt from the mobile phone terminal 2a.
- the map is rotated and displayed so as to have the same map display direction, current position, and traveling direction as the mobile phone terminal 2a. In this way, by tilting the map display by the amount the mobile phone terminal 2a is tilted, the user can easily see the correspondence between the in-vehicle information system 1 and the map displayed on the mobile phone terminal 2a, and the usability is improved.
- the mobile phone terminal 2a corrects the inclination so as not to change the direction of the apparent map display.
- the portable information terminal 22a is tilted in the same plane as the display screen 22a, as shown in FIGS. 8A and 9A, the upper side (side a side) of the display screen 22a faces north.
- the in-vehicle information system 1 has the upper side of the display screen 14a in the north.
- the in-vehicle information system 1 acquires a profile related to the map display of the map display application for the mobile phone from the mobile phone terminal 2a by the short-range wireless communication, and rotates the map according to the map display method. Determine whether or not.
- the in-vehicle information system 1 may flexibly change the map display control method in accordance with the map display of the map display application for mobile phones. For example, when the portable information terminal 2a is inclined by a predetermined angle in the same plane as the display screen 22a, the in-vehicle information system 1 is controlled to change the map display.
- the map display control unit 19 is in the same plane as the display screen 22a of the mobile phone terminal 2a acquired from the mobile phone terminal 2a via the short-range wireless communication unit 9. Based on the information on the inclination of the mobile phone terminal 2a, control is performed so that the direction of the map display on the display screen 22a is changed in accordance with the inclination of the mobile phone terminal 2a.
- both map displays are changed according to the inclination (orientation) of the mobile phone terminal 2a with respect to the horizontal direction, the visibility and operability of the map display process can be improved.
- Embodiment 3 when the map displayed on the mobile phone terminal is scrolled and the current position deviates from the display screen, the current position and the previous position (cursor position) scrolled on the display screen of the in-vehicle information system A configuration for changing the scale of the map so that both are displayed will be described.
- the basic configuration of the navigation system according to the third embodiment is the same as the configuration of FIG. 1 shown in the first embodiment, but is different in that the map scale is changed as described above. Therefore, each configuration of the system refers to FIG.
- FIG. 10 is a diagram showing a map display screen of the in-vehicle information system and the mobile phone terminal in the navigation system of Embodiment 3, and FIG. 10 (a) shows a map display of the mobile phone terminal 2, and FIG. FIG. 10B shows a map display of the in-vehicle information system 1 according to the third embodiment in accordance with FIG. Moreover, FIG.10 (c) has shown the case where the map of Fig.10 (a) is scrolled, FIG.10 (d) is the map of the vehicle-mounted information system 1 which changed the scale according to FIG.10 (c). The display is shown.
- the mobile phone terminal 2 is brought into a vehicle on which the in-vehicle information system 1 is mounted. That is, the traveling direction of the mobile phone terminal 2 is the same as the traveling direction of the host vehicle on which the in-vehicle information system 1 is mounted.
- the display screen 22a of the mobile phone terminal 2 displays an azimuth display field 22b, a scale display field 22c, a symbol 22d indicating the current position, and a travel route 22e.
- the direction is a map display (heading up) in which the traveling direction of the terminal 2 (the traveling direction of the host vehicle) is on the upper side.
- the azimuth display column 14b, the scale display column 14c, the symbol 14d indicating the current position of the host vehicle, the traveling The route 14e is displayed on the display screen 14a, and the direction of the map display is heading up in cooperation with the mobile phone terminal 2.
- the position designated by the scroll destination (the position of the cross-shaped scroll cursor 34, hereinafter referred to as the scroll center) is changed from the current position.
- the current position becomes out of the display range of the display screen 22a.
- an arrow 35 indicating the direction of the current position from the position of the scroll center may be displayed.
- the mobile phone map display control unit 27 determines whether or not the distance on the map from the current position to the scroll center can be displayed based on the distance range that can be displayed on the display screen 22a at the current map scale.
- an arrow 35 indicating the direction of the current position is displayed with the scroll center as a base point.
- a display that connects the scroll center and the current position with a straight line or a curve may be performed.
- the mobile phone map display control unit 27 determines that the current position is out of the display range of the display unit 22 by the scroll operation, the current position and the position of the scroll center are used as information regarding the map display of the display unit 22. Is transmitted to the in-vehicle information system 1 by short-range wireless communication via the short-range wireless communication unit 23.
- the map display control unit 19 of the in-vehicle information system 1 receives the current position and the scroll center position from the mobile phone terminal 2 via the short-range wireless communication unit 9, the map display control unit 19 displays the current position and the scroll center on the display screen of the liquid crystal monitor 14.
- the map display control unit 19 sets the calculated scale and controls the drawing LSI 13 to display both the current position and the scroll center.
- the drawing LSI 13 changes the map scale of the screen of the liquid crystal monitor 14 in accordance with an instruction from the map display control unit 19 and displays both the current position and the scroll center on the screen of the liquid crystal monitor 14.
- both the symbol 14d as the current position and the scroll cursor 34a corresponding to the position of the scroll center on the screen of the mobile phone terminal 2 are displayed on the display screen 14a.
- the in-vehicle information system 1 may display an arrow 35a indicating the direction of the current position with the scroll center as a base point. Further, instead of the arrow 35a, a display connecting the scroll center and the current position with a straight line or a curve may be performed.
- the display scale of the map in the in-vehicle information system 1 may be changed hierarchically. Further, the map display may be controlled so that the position of the scroll center is easy to see according to the direction of the current position. For example, the user may set a shape other than a cross as the shape of the cursor 34 indicating the position of the scroll center.
- the short-range wireless communication unit 9 that communicates with the mobile phone terminal 2 having the function of displaying a map including its own position, the liquid crystal monitor 14 that performs map display, Based on the information regarding the map display acquired from the mobile phone terminal 2 via the short-range wireless communication unit 9, the map display content of the mobile information terminal 2 is displayed on a map scale where a predetermined point existing on the map is displayed. And a map display control unit 19 that performs control to display on the liquid crystal monitor 14. In particular, the current position of the mobile phone terminal 2 acquired by the map display control unit 19 via the short-range wireless communication unit 9 and the specified position (scroll center) specified by the scroll operation on the map displayed by the mobile phone terminal 2 are displayed.
- Control is performed so that the map display content of the mobile phone terminal 2 including the current position and the specified position is displayed on the liquid crystal monitor 14 by adjusting the map scale to be displayed together. By doing in this way, the visibility and operativity in scroll operation of a map can be aimed at.
- the map display of the in-vehicle information system 1 is changed in accordance with the scroll operation executed in the mobile phone terminal 2 is shown.
- the map display of the mobile phone terminal 2 may be changed.
- the map display control unit 19 moves the map display of the liquid crystal monitor 14 by a scroll operation
- the current position and the position of the scroll center are transmitted as short-distance wireless communication via the short-range wireless communication unit 9 as information relating to the map display.
- the mobile phone map display control unit 27 When the mobile phone map display control unit 27 receives the current position and the position of the scroll center from the in-vehicle information system 1 via the short-range wireless communication unit 23, the current position and the position of the scroll center are displayed on the display screen of the display unit 22. Calculate the map scale that both can display. For example, the distance between the current position and the scroll center is calculated from the current position and the scroll center position, and both distances are set to a distance that is 1 ⁇ 2 of the vertical size of the display screen of the liquid crystal monitor 14. Subsequently, the mobile phone map display control unit 27 sets the calculated scale, and displays both the current position and the scroll center on the screen of the display unit 22.
- the mobile phone terminal 2 is controlled on the vehicle-mounted side where the user interface is easy to use, and the operability of the mobile phone terminal 2 is improved.
- the latest operation of the portable information terminal 2 and the in-vehicle information system 1 is validated and the other is controlled.
- Embodiment 4 when a part of the route from the current position searched for by the mobile phone terminal to the destination point deviates from the display screen, all the routes from the current position to the destination point are displayed on the display screen of the in-vehicle information system. A configuration for changing the scale of the map to be displayed will be described.
- the basic configuration of the navigation system according to the fourth embodiment is the same as the configuration of FIG. 1 shown in the first embodiment, but is different in that the map scale is changed as described above. Therefore, each configuration of the system refers to FIG.
- FIG. 11 is a diagram showing a map display screen of the in-vehicle information system and the mobile phone terminal in the navigation system of the fourth embodiment.
- FIG. 11 (a) shows a map display of the mobile phone terminal 2
- FIG. b) has shown the map display of the vehicle-mounted information system 1 of Embodiment 4 matched with Fig.11 (a). It is assumed that the mobile phone terminal 2 is brought into a vehicle on which the in-vehicle information system 1 is mounted. That is, the traveling direction of the mobile phone terminal 2 is the same as the traveling direction of the host vehicle on which the in-vehicle information system 1 is mounted.
- the display screen 22a of the mobile phone terminal 2 displays an azimuth display field 22b, a scale display field 22c, a symbol 22d indicating the current position, and a travel route 22e.
- the direction is a map display (heading up) in which the traveling direction of the terminal 2 (the traveling direction of the host vehicle) is on the upper side.
- the navigation processing unit 28 of the mobile phone terminal 2 searches for a route from the current position to the destination point, and the mobile phone map display control unit 27 displays the search result route 37 on the display screen 22a.
- the map scale is changed so that the entire route 37 searched by the mobile phone terminal 2 is displayed, and the map is displayed.
- the mobile phone map display control unit 27 determines whether or not all of the search result paths 37 can be displayed based on the distance range that can be displayed on the display screen 22a at the current map scale.
- information indicating the current position, the position of the destination point 36 and the route is used as the information related to the map display of the display unit 22 through the short-range wireless communication unit 23. It transmits to the vehicle-mounted information system 1 by communication.
- the map display control unit 19 of the in-vehicle information system 1 receives information indicating the current position, the position of the destination point 36 and the route from the mobile phone terminal 2 via the short-range wireless communication unit 9, the map display control unit 19 displays on the display screen of the liquid crystal monitor 14.
- a map scale capable of displaying all of the route 37 including the current position and the destination point 36 is calculated.
- the map scale of the in-vehicle information system 1 is determined based on the ratio between the size of the display screen 14 a of the in-vehicle information system 1 and the size of the display screen 22 a of the mobile phone terminal 2.
- routes 37 in the vehicle-mounted information system 1, it becomes a map scale larger than the map scale of the display part 22 of the mobile telephone terminal 2.
- the vertical dimension of the display screen 22a of the mobile phone terminal 2 and L t in the case where the vertical dimension of the display screen 14a of the liquid crystal monitor 14 of the vehicle information system 1 and the L E, circumscribed rectangle reduction ratio map of the route 37 determine the display scale is reduced in the L t / L E.
- the lateral dimension of the display screen 22a of the mobile phone terminal 2 and W t when the lateral dimensions of the display screen 14a of the liquid crystal monitor 14 of the vehicle information system 1 and the W E is the circumscribed quadrangle of the path 37, Map the display scale is reduced by the reduction ratio W t / W E may be obtained.
- map reduction ratios L t / L E and W t / W E may be adjusted by adding a predetermined constant ⁇ or adding a predetermined constant ⁇ .
- the map reduction ratio may be ((W t ⁇ L t ) / (W E ⁇ L E )) 1/2 .
- the map display control unit 19 sets the calculated scale, and controls the drawing LSI 13 to display all of the route 37 including the current position and the destination point 36.
- the drawing LSI 13 changes the map scale of the screen of the liquid crystal monitor 14 in accordance with an instruction from the map display control unit 19, whereby the symbol 14 d that is the current position and the mobile phone terminal 2 are changed as shown in FIG.
- a route 37a corresponding to the route 37 searched by the mobile phone terminal 2 including the destination point 36a corresponding to the position of the destination point 36 on the screen is displayed on the display screen 14a.
- POI information around the route acquired from the mobile phone map DB may be included as information on the route searched by the mobile phone terminal 2.
- the mobile phone terminal 2 transmits POI information around the route 37 to the in-vehicle information system 1, and the in-vehicle information system 1 displays the POI information received from the mobile phone terminal 2 around the route 37a.
- FIG. 12 is a diagram for explaining a method of calculating the map reduction rate of the in-vehicle information system.
- the vertical display size of the display screen 14a of the liquid crystal monitor 14 of the in-vehicle information system 1 is Lm
- the horizontal display size is Wm
- the current position 14d where the entire display is desired to the destination point 36a is Lm
- the path 37a is a curve L
- the vertical dimension of the circumscribed rectangle 38 of the curve L is Lx
- the horizontal dimension is Wx.
- the vertical dimension of region 39 and L E, when the lateral dimension and W E, the aspect ratio of the region 39 S a is a S a L E / W E .
- map reduction rate may be calculated from the following formula.
- Sx MAX (Lx, Wx)
- Sm MAX (Lm, Wm)
- Map reduction ratio (Sx / Sm) ⁇ S A
- the map display control unit 19 displays both the current position and the position of the destination point of the mobile phone terminal 2 acquired via the short-range wireless communication unit 9.
- the scale is adjusted so that the map display content of the mobile phone terminal 2 including the current position and the destination point is displayed on the liquid crystal monitor 14.
- the route search result executed by the mobile phone terminal 2 is displayed as a map on the in-vehicle information system 1.
- the current position and the position of the destination point are in-vehicle.
- the information may be transmitted to the information system 1 and displayed on the liquid crystal monitor 14 at a map scale capable of displaying both the current position and the destination point.
- the mobile phone map display control unit 27 transmits the current position and the position of the destination point 36 to the in-vehicle information system 1 by short-range wireless communication via the short-range wireless communication unit 23.
- the map display control unit 19 of the in-vehicle information system 1 receives the current position and the position of the destination point 36 from the mobile phone terminal 2 via the short-range wireless communication unit 9, the current position and the destination point are displayed on the display screen of the liquid crystal monitor 14.
- a map scale capable of displaying 36 is calculated.
- the map display control unit 19 sets the calculated scale and controls the drawing LSI 13 to display the current position and the destination point 36.
- the drawing LSI 13 changes the map scale of the screen of the liquid crystal monitor 14 in accordance with an instruction from the map display control unit 19, so that the current position of the symbol 14 d and the position of the destination point 36 on the screen of the mobile phone terminal 2 are obtained.
- the corresponding destination point 36a is displayed on the display screen 14a.
- an arbitrary map display position designated by an operation on the mobile phone terminal 2 and the current position may be displayed on the liquid crystal monitor 14 at a scale capable of displaying both.
- the scale may be adjusted and displayed so as to be displayed at a predetermined position on the liquid crystal monitor 14 of the in-vehicle information system 1 in accordance with the current position and the positional relationship displayed on the mobile phone terminal 2. .
- the current position is set to a distance of 1/5 between the upper end and the lower end of the display surface of the liquid crystal monitor 14.
- the scale may be adjusted so that the position displayed on the terminal 2 is a distance of 4/5. If the current position is lower than the position displayed on the mobile phone terminal 2, the current position is displayed on the mobile phone terminal 2 at a distance of 4/5 between the upper and lower ends of the display surface of the liquid crystal monitor 14.
- the scale may be adjusted so that the existing position becomes a distance of 1/5. This display method may be applied to the left-right positional relationship between the current position and the position displayed on the mobile phone terminal 2.
- the route search result performed with the mobile telephone terminal 2 was displayed on a map with the vehicle-mounted information system 1
- the result of the route search performed with the vehicle-mounted information system 1 is shown.
- a map may be displayed on the mobile phone terminal 2.
- the map display control unit 19 transmits information indicating the current position, the position of the destination point, and the route via the short-range wireless communication unit 9 as information regarding the map display. It transmits to the mobile phone terminal 2 by near field communication.
- the mobile phone map display control unit 27 When the mobile phone map display control unit 27 receives information indicating the current position, the position of the destination point, and the route from the in-vehicle information system 1 via the short-range wireless communication unit 23, the current position is displayed on the display screen of the liquid crystal monitor 14. And a map scale that can display all the routes including the destination point. Subsequently, the mobile phone map display control unit 27 sets the calculated scale on the display unit 22 and displays a route including the current position and the destination point on the screen of the display unit 22.
- the route searched by the in-vehicle information system 1 may be displayed on the display screen 22a of the mobile phone terminal 2 without changing the map scale.
- POI information around the route acquired from the map DB may be included as information related to the route searched by the in-vehicle information system 1.
- the in-vehicle information system 1 transmits POI information around the route to the mobile phone terminal 2, and the mobile phone terminal 2 displays the POI information received from the in-vehicle information system 1 around the route.
- control may be performed so that either one is given priority.
- the navigation processing unit 20 of the in-vehicle information system 1 performs a route search
- information necessary for the route search such as a current position, a destination point, and a search condition set by the user is transmitted via the short-range wireless communication unit 9. It transmits to the cellular phone terminal 2 by the short-range wireless communication.
- the navigation processing unit 28 of the mobile phone terminal 2 receives information necessary for the route search such as the current position, the destination point, and the search condition set by the user from the in-vehicle information system 1 via the short-range wireless communication unit 23, A route is searched based on these pieces of information.
- Information necessary for the route search such as the current position searched for by the navigation processing unit 28, the destination point, and the search condition set by the user is transmitted to the in-vehicle information system 1 by the short-range wireless communication via the short-range wireless communication unit 23. Send.
- the map display control unit 19 of the in-vehicle information system 1 compares the result of the route search of the navigation processing unit 20 with the result of the route search of the mobile phone terminal 2 received via the short-range wireless communication unit 9. If the route is different, select one of the routes. For example, among the route search results of both the in-vehicle information system 1 and the mobile phone terminal 2, the map data used for the route search that has a new creation date is preferentially selected, and the selected route is carried with the in-vehicle information system 1 and the mobile phone. Displayed on both the telephone terminal 2.
- the version information corresponding to the creation date of the map data used for the route search may be selected. Further, it may be possible to select the one with the latest update date of the map data used for the route search from the route search results of both the in-vehicle information system 1 and the mobile phone terminal 2.
- map data in the mobile phone map DB is often updated to the latest information as compared with the map data of the in-vehicle information system 1 that holds the map data fixedly in an HDD or the like. Therefore, when the creation date of the map data is uncertain, the route search result of the mobile phone terminal 2 may be selected.
- the present invention is not limited to this.
- a PDA Personal Digital Assistance
- a portable personal computer may be used for a portable information terminal that displays a map in cooperation with the in-vehicle information system 1.
- the in-vehicle information system 1 is used as a navigation device.
- the present invention is not limited to this.
- a PDA or a portable personal computer may be used for a navigation device that displays a map in cooperation with the mobile phone terminals 2 and 2a.
- the navigation device can improve visibility and operability in map display processing, setting a destination on a map, confirming a current position, scrolling a map, and the like, and thus is suitable for a vehicle-mounted navigation device.
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Abstract
Description
例えば、特許文献1には、表示画面のサイズが小さい携帯電話等の携帯情報端末が、車載の情報システムからGPS(Global Positioning System)情報等の位置情報や交通情報、目的地情報を取得して、ナビゲーション処理を実行する情報転送装置が開示されている。この装置では、携帯電話と車両側で双方の位置情報やPOI情報を交換することにより、使用者にとって使い勝手のよい携帯電話用のナビゲーション機能を実現している。
このように、位置データを、本来電話のために使用される電話番号、名称等の電話帳情報と関連付けて登録することにより、電話番号や名称等で位置データを直接設定できる。また、ナビゲーション装置から受信した位置データと、電話帳情報に予め登録されている位置データとのマッチングによって、電話番号や名称等を検索することができる。
例えば、地図表示の度に、地図の向き、縮尺、地図の表示中心位置を、車載システムと携帯電話との間で対応付ける必要がある。
実施の形態1.
図1は、この発明の実施の形態1によるナビゲーションシステムの構成を示すブロック図である。図1において、実施の形態1のナビゲーションシステムは、本発明のナビゲーション装置に相当する車載情報システム1及び本発明の携帯情報端末に相当する携帯電話端末2を備える。携帯電話端末2は、基地局3を介して携帯電話サーバ4と通信することにより、携帯電話サーバ4から提示される複数のアプリケーションサイトにアクセスできる。携帯電話用アプリケーションサーバ5は、携帯電話サーバ4が提示するアプリケーションサイトのうち、携帯電話用の地図表示アプリケーションを管理するサーバである。
内部メモリ11は、メインCPU18が車載情報処理用のアプリケーションプログラムを実行する際の作業領域となるメモリである。
通信部24は、アンテナ25を介して基地局3と通信することにより、携帯電話網上の他の携帯電話端末と通話を行ったり、携帯電話サーバ4と通信接続してデータ通信を行う構成部である。
図2は、従来のナビゲーションシステムにおける車載情報システムと携帯電話端末との地図表示画面を示す図であり、図2(a)が従来の携帯電話端末2Aの地図表示を示し、図2(b)が従来の車載情報システム1Aの地図表示を示している。なお、図2は、特許文献1に代表される従来の技術を適用することにより、車載情報システム1Aと携帯電話端末2Aとが連携してナビゲーション処理を行うナビゲーションシステムを示している。ここで、携帯電話端末2Aは、車載情報システム1Aを搭載する車両に持ち込まれているものとする。つまり、携帯電話端末2Aの進行方向は、車載情報システム1Aを搭載する自車両の進行方向と同一である。
図4は、実施の形態1の携帯電話端末による地図表示処理の流れを示すフローチャートであり、図5は、実施の形態1の車載情報システムによる地図表示処理の流れを示すフローチャートである。
先ず、図4において、携帯電話端末2のCPU26が、図示を省略した操作部を用いて入力された指示に従って、通信部24を介して携帯電話用アプリケーションサーバ5との通信接続を確立し、携帯電話用地図表示アプリケーションをダウンロードして実行する(ステップST1)。これにより、CPU26が、携帯電話用地図表示制御部27及びナビゲーション処理部28として機能する。
次いで、携帯電話用地図表示制御部27は、表示部22における地図表示に関する情報として、現在位置、地図縮尺、及び地図表示の向きを、近距離無線通信部23を介した近距離無線通信で、車載情報システム1へ送信する(ステップST6)。
例えば、地図表示制御部19が、液晶モニタ14の表示画面22aに表示した現在位置又は登録地点が操作されると、地図表示に関する情報として、現在位置又は登録地点の位置を、近距離無線通信部9を介した近距離無線通信で携帯電話端末2へ送信する。
携帯電話用地図表示制御部27は、近距離無線通信部23を介して、操作された現在位置又は登録地点の位置を車載情報システム1から受信すると、当該現在位置又は登録地点を表示部22の画面に表示する。
上記実施の形態1では、車載情報システム1と携帯電話端末2の間で地図表示の向き、現在位置、地図縮尺を合わせて地図を表示する例を示した。この実施の形態2は、携帯電話端末が自端末の傾きに応じて地図表示の向きを変更する場合に、車載情報システムでも同様に地図表示の向きを変更するものである。
なお、実施の形態2によるナビゲーションシステムの基本的な構成は、実施の形態1で示した図1の構成と同一であるが、携帯電話端末の傾きに応じて地図表示の向きが変更される点で異なる。従って、システムにおける携帯電話端末以外の構成は図1を参照する。
図7は、実施の形態2のナビゲーションシステムにおける車載情報システムと傾きが0度の携帯電話端末との地図表示画面を示す図であり、図7(a)は、携帯電話端末2aの地図表示を示し、図7(b)は、実施の形態2の車載情報システム1の地図表示を示している。また、携帯電話端末2aは、車載情報システム1を搭載する車両に持ち込まれているものとする。つまり、携帯電話端末2aの進行方向は、車載情報システム1を搭載する自車両の進行方向と同一である。
このとき、携帯電話用地図表示制御部27aは、表示部22の地図表示に関する情報として、現在位置、地図縮尺、地図表示の向き(ノースアップ)、表示画面22aと同じ平面内における携帯情報端末2aの傾き(0度)を、近距離無線通信部23を介した近距離無線通信で車載情報システム1へ送信する。
ここでは、45度傾いている携帯電話端末2aの表示画面22aの表示内容が、車載情報システム1の液晶モニタ14の画面に表示される。つまり、図8(b)に示すように、車載情報システム1は、表示画面14aの上側が北に向くように地図表示せず、携帯電話端末2aと同じ地図表示の向き、現在位置、自車の進行方向となるように地図を45度回転させて表示する。
なお、車載情報システム1の液晶モニタ14の画面は、携帯電話端末2aの表示部22の画面より大きいため、携帯電話端末2aより広範囲の地図を表示することができる。
ここでは、表示画面22aと同じ平面内で携帯情報端末2aを90度傾けたときの表示画面22aの表示内容が、車載情報システム1の液晶モニタ14の画面に表示される。つまり、図9(b)に示すように、車載情報システム1は、表示画面14aの上側が北に向くように地図表示せず、携帯電話端末2aと同じ地図表示の向き、現在位置、自車の進行方向となるように地図を90度回転させて表示する。
なお、車載情報システム1の液晶モニタ14の画面は、携帯電話端末2aの表示部22の画面より大きいため、携帯電話端末2aより広範囲の地図を表示することができる。
従来では、携帯電話端末と車載情報システムで地図表示の向きが連携していないので、従来の車載情報システムが、ノースアップで地図表示している場合に、携帯電話端末2aの表示画面22aと同じ平面内での携帯情報端末2aの傾きとは無関係に、図7(b)に示すような地図表示のままとなる。このため、携帯電話端末2aと車載情報システム1との双方の地図表示の対応関係を視覚的に把握しにくくなり、使用者にとって使い勝手が悪くなる。
実施の形態3では、携帯電話端末で表示した地図をスクロールさせて現在位置が表示画面から外れた場合に、車載情報システムの表示画面において、現在位置とスクロールさせた先の位置(カーソル位置)との双方が表示されるように地図の縮尺を変更する構成について述べる。なお、実施の形態3によるナビゲーションシステムの基本的な構成は、実施の形態1で示した図1の構成と同一であるが、上述の地図縮尺の変更を行う点で異なる。従って、システムの各構成は、図1を参照する。
図10は、実施の形態3のナビゲーションシステムにおける車載情報システムと携帯電話端末との地図表示画面を示す図であり、図10(a)は、携帯電話端末2の地図表示を示し、図10(b)は、図10(a)に合わせた実施の形態3の車載情報システム1の地図表示を示している。また、図10(c)は、図10(a)の地図をスクロールした場合を示しており、図10(d)は、図10(c)に応じて縮尺を変更した車載情報システム1の地図表示を示している。なお、携帯電話端末2は、車載情報システム1を搭載する車両に持ち込まれているものとする。つまり、携帯電話端末2の進行方向は、車載情報システム1を搭載する自車両の進行方向と同一である。
例えば、現在位置とスクロール中心の位置から、現在位置とスクロール中心との距離を算出し、液晶モニタ14の表示画面の縦サイズの1/2の距離に双方の距離を設定する。
なお、携帯電話端末2と同様に、車載情報システム1においても、スクロール中心を基点として現在位置の方向を示す矢印35aを表示してもよい。また、矢印35aの代わりに、スクロール中心と現在位置とを直線あるいは曲線で結ぶ表示を行ってもよい。
さらに、現在位置の方向に従ってスクロール中心の位置が見やすくなるように地図表示を制御してもよい。例えば、使用者が、スクロール中心の位置を示すカーソル34の形状として十字以外の形状を設定してもよい。
このようにすることで、地図のスクロール操作における視認性及び操作性の向上を図ることができる。
例えば、地図表示制御部19が、スクロール操作によって液晶モニタ14の地図表示が移動すると、地図表示に関する情報として、現在位置及びスクロール中心の位置を、近距離無線通信部9を介した近距離無線通信で携帯電話端末2へ送信する。
続いて、携帯電話用地図表示制御部27は、算出した縮尺を設定して、現在位置とスクロール中心の双方を表示部22の画面に表示する。
また、車載情報システム1側の現時位置表示ボタン(不図示)を押すことにより、携帯電話端末2に操作信号を送り、一瞬で携帯電話端末2を現在地表示にするようにしてもよい。このようにすると、ユーザインタフェースが使いやすい車載側で、携帯電話端末2を制御することになり、携帯電話端末2の操作性が向上する。このような制御の場合、携帯情報端末2と車載情報システム1との最新の操作を有効として、他方を制御する。
実施の形態4では、携帯電話端末で探索した現在位置から目的地点までの経路の一部が表示画面から外れた場合に、車載情報システムの表示画面において、現在位置から目的地点までの経路が全て表示されるように地図の縮尺を変更する構成について述べる。なお、実施の形態4によるナビゲーションシステムの基本的な構成は、実施の形態1で示した図1の構成と同一であるが、上述の地図縮尺の変更を行う点で異なる。従って、システムの各構成は、図1を参照する。
図11は、実施の形態4のナビゲーションシステムにおける車載情報システムと携帯電話端末との地図表示画面を示す図であり、図11(a)は、携帯電話端末2の地図表示を示し、図11(b)は、図11(a)に合わせた実施の形態4の車載情報システム1の地図表示を示している。なお、携帯電話端末2は、車載情報システム1を搭載する車両に持ち込まれているものとする。つまり、携帯電話端末2の進行方向は、車載情報システム1を搭載する自車両の進行方向と同一である。
図12は、車載情報システムの地図縮小率の計算方法を説明するための図である。図12(a)に示すように、車載情報システム1の液晶モニタ14の表示画面14aの縦の表示寸法をLm、横の表示寸法をWm、全体を表示したい現在位置14dから目的地点36aまでの経路37aを曲線Lとし、この曲線Lの外接四角形38の縦寸法をLx、横寸法をWxとする。ここで、図12(b)に示す領域39に外接四角形38内の地図を縮小して表示する場合、領域39の縦寸法をLEとし、横寸法をWEとすると、領域39の縦横比SAは、SA=LE/WEとなる。これらを利用して、経路37aの全てを表示する地図縮小率MIN(SL,SW)を、下記式に従って算出する。
SL=(Lm/Lx)×SA
Sw=(Wm/Wx)×SA
MIN(SL,SW)=MIN((Lm/Lx),(Wm/Wx))×SA
Sx=MAX(Lx,Wx)
Sm=MAX(Lm,Wm)
地図縮小率=(Sx/Sm)×SA
車載情報システム1の地図表示制御部19は、近距離無線通信部9を介して携帯電話端末2から現在位置及び目的地点36の位置を受信すると、液晶モニタ14の表示画面で現在位置と目的地点36を表示可能な地図縮尺を計算する。
また、現在位置と携帯電話端末2で表示されている位置関係に応じて、車載情報システム1の液晶モニタ14上の予め定められた位置に表示するように縮尺を調整して表示してもよい。例えば、ヘディングアップモードで現在位置が携帯電話端末2で表示されている位置よりも上である場合は、現在位置を液晶モニタ14の表示面上端と下端との1/5の距離に、携帯電話端末2で表示されている位置を4/5の距離になるように縮尺を調整してもよい。現在位置が携帯電話端末2で表示されている位置よりも下である場合は、現在位置を液晶モニタ14の表示面上端と下端との4/5の距離に、携帯電話端末2で表示されている位置を1/5の距離になるように縮尺を調整してもよい。この表示方法は、現在位置と携帯電話端末2で表示されている位置との左右の位置関係に適用してもよい。
例えば、地図表示制御部19が、ナビゲーション処理部20によって経路探索がなされると、地図表示に関する情報として、現在位置、目的地点の位置及び経路を示す情報を、近距離無線通信部9を介した近距離無線通信で携帯電話端末2へ送信する。
続いて、携帯電話用地図表示制御部27は、算出した縮尺を表示部22に設定し、現在位置と目的地点を含む経路を、表示部22の画面に表示する。
例えば、車載情報システム1のナビゲーション処理部20が、経路探索を行うと、現在位置、目的地点、使用者が設定した探索条件等の経路探索に必要な情報を、近距離無線通信部9を介した近距離無線通信で携帯電話端末2へ送信する。
携帯電話端末2のナビゲーション処理部28は、近距離無線通信部23を介して車載情報システム1から現在位置、目的地点、使用者が設定した探索条件等の経路探索に必要な情報を受信すると、これらの情報に基づいて経路を探索する。ナビゲーション処理部28に探索された現在位置、目的地点、使用者が設定した探索条件等の経路探索に必要な情報を、近距離無線通信部23を介した近距離無線通信で車載情報システム1へ送信する。
例えば、車載情報システム1と携帯電話端末2の双方の経路探索結果のうち、経路探索に用いた地図データの作成日が新しい方を優先して選択し、選択した経路を車載情報システム1と携帯電話端末2との双方で表示する。
さらに、車載情報システム1と携帯電話端末2の双方の経路探索結果のうち、経路探索に用いた地図データの更新日が新しい方を選択してもかまわない。
Claims (18)
- 自身の位置を含む地図を表示する機能を有した携帯情報端末と通信する通信部と、
地図表示を行う表示部と、
前記通信部を介して前記携帯情報端末から取得した地図表示に関する情報に基づいて、前記携帯情報端末の地図表示内容を、当該携帯情報端末の地図表示の向きで前記表示部に表示するように制御する地図表示制御部とを備えたナビゲーション装置。 - 前記地図表示制御部は、前記通信部を介して前記携帯情報端末から取得した前記携帯情報端末の表示面と同じ平面内における前記携帯情報端末の傾きの情報に基づいて、前記表示部の地図表示の向きを前記携帯情報端末の傾きに合わせて変更するように制御することを特徴とする請求項1記載のナビゲーション装置。
- 自身の位置を含む地図を表示する機能を有した携帯情報端末と通信する通信部と、
地図表示を行う表示部と、
前記通信部を介して前記携帯情報端末から取得した地図表示に関する情報に基づいて、前記携帯情報端末の地図表示内容を、当該地図上に存在する所定の地点が表示される地図縮尺に調整して前記表示部に表示するように制御する地図表示制御部とを備えたナビゲーション装置。 - 前記地図表示制御部は、前記通信部を介して取得した前記携帯情報端末の現在位置及び当該携帯情報端末が表示する地図に対して指定された指定位置がともに表示される地図縮尺に調整して、前記現在位置及び前記指定位置を含む当該携帯情報端末の地図表示内容を前記表示部に表示するように制御することを特徴とする請求項3記載のナビゲーション装置。
- 前記地図表示制御部は、前記現在位置及び前記指定位置を所定のシンボルで表示するとともに、前記現在位置と前記指定位置との間を結ぶ直線又は曲線を前記表示部に表示するように制御することを特徴とする請求項4記載のナビゲーション装置。
- 前記地図表示制御部は、前記通信部を介して取得した前記携帯情報端末の現在位置及び当該携帯情報端末が表示する地図に対するスクロール操作で指定された指定位置がともに表示される地図縮尺に調整して、前記現在位置及び前記指定位置を含む当該携帯情報端末の地図表示内容を前記表示部に表示するように制御することを特徴とする請求項3記載のナビゲーション装置。
- 前記地図表示制御部は、前記通信部を介して取得した前記携帯情報端末の現在位置及び目的地点がともに表示される地図縮尺に調整して、前記現在位置及び前記目的地点を含む当該携帯情報端末の地図表示内容を前記表示部に表示するように制御することを特徴とする請求項3記載のナビゲーション装置。
- 前記地図表示制御部は、前記通信部を介して取得した前記携帯情報端末の現在位置、目的地点及び前記現在位置から前記目的地点までの経路探索の結果に基づいて、前記現在位置から前記目的地点までの経路が表示される地図縮尺に調整して、前記経路を含む当該携帯情報端末の地図表示内容を前記表示部に表示するように制御することを特徴とする請求項3記載のナビゲーション装置。
- 前記地図表示制御部は、前記携帯情報端末の表示画面のサイズと前記表示部の表示画面のサイズとの比率に基づいて地図縮尺を調整することを特徴とする請求項3記載のナビゲーション装置。
- 前記地図表示制御部は、前記携帯情報端末の地図表示内容を、当該携帯情報端末の地図縮尺よりも大きい地図縮尺で前記表示部に表示するように制御することを特徴とする請求項3記載のナビゲーション装置。
- 前記地図表示制御部は、前記通信部を介して取得した前記携帯情報端末による経路探索の結果と自装置による経路探索の結果とが異なる場合に、経路探索に用いた地図データが新しい方を選択して前記表示部に表示するように制御することを特徴とする請求項1記載のナビゲーション装置。
- 前記通信部を介して前記携帯情報端末から取得した地図表示に関する情報に基づいて、前記携帯情報端末の地図表示内容を、当該携帯情報端末の地図表示の向きで前記表示部に表示するように制御することを特徴とする請求項3記載のナビゲーション装置。
- ナビゲーション装置と通信する通信部と、
地図表示を行う表示部と、
前記通信部を介して前記ナビゲーション装置から取得した地図表示に関する情報に基づいて、前記ナビゲーション装置の地図表示内容を、当該ナビゲーション装置の地図表示の向きで前記表示部に表示するように制御する地図表示制御部とを備えた携帯情報端末。 - 前記地図表示制御部は、前記通信部を介して前記ナビゲーション装置から取得した地図表示に関する情報に基づいて、前記ナビゲーション装置の地図表示内容を、当該地図上に存在する所定の地点が表示される地図縮尺に調整して前記表示部に表示するように制御することを特徴とする請求項13記載の携帯情報端末。
- 前記地図表示制御部は、前記通信部を介して取得した前記ナビゲーション装置の現在位置及び当該ナビゲーション装置が表示する地図に対して指定された指定位置がともに表示される地図縮尺に調整して、前記現在位置及び前記指定位置を含む当該ナビゲーション装置の地図表示内容を前記表示部に表示するように制御することを特徴とする請求項14記載の携帯情報端末。
- 前記地図表示制御部は、前記通信部を介して取得した前記ナビゲーション装置の現在位置及び当該ナビゲーション装置が表示する地図に対するスクロール操作で指定された指定位置がともに表示される地図縮尺に調整して、前記現在位置及び前記指定位置を含む当該ナビゲーション装置の地図表示内容を前記表示部に表示するように制御することを特徴とする請求項14記載の携帯情報端末。
- 前記地図表示制御部は、前記通信部を介して取得した前記ナビゲーション装置の現在位置及び目的地点がともに表示される地図縮尺に調整して、前記現在位置及び前記目的地点を含む当該ナビゲーション装置の地図表示内容を前記表示部に表示するように制御することを特徴とする請求項14記載の携帯情報端末。
- 前記地図表示制御部は、前記通信部を介して取得した前記ナビゲーション装置の前記現在位置、前記目的地点及び前記現在位置から前記目的地点までの経路探索の結果に基づいて、前記現在位置から前記目的地点までの経路が表示される地図縮尺に調整して、前記経路を含む当該ナビゲーション装置の地図表示内容を前記表示部に表示するように制御することを特徴とする請求項17記載の携帯情報端末。
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US13/704,058 US9212913B2 (en) | 2010-10-05 | 2010-10-05 | Navigation apparatus and mobile data terminal |
DE112010005919T DE112010005919T5 (de) | 2010-10-05 | 2010-10-05 | Navigationsvorrichtung und Mobildatenendgerät |
JP2012537486A JP5172048B2 (ja) | 2010-10-05 | 2010-10-05 | ナビゲーション装置及び携帯情報端末 |
PCT/JP2010/005963 WO2012046268A1 (ja) | 2010-10-05 | 2010-10-05 | ナビゲーション装置及び携帯情報端末 |
CN201080068870.2A CN103097861B (zh) | 2010-10-05 | 2010-10-05 | 导航装置及移动信息终端 |
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JP5172048B2 (ja) | 2013-03-27 |
CN103097861A (zh) | 2013-05-08 |
JPWO2012046268A1 (ja) | 2014-02-24 |
DE112010005919T5 (de) | 2013-07-25 |
CN103097861B (zh) | 2016-03-02 |
US20130090845A1 (en) | 2013-04-11 |
US9212913B2 (en) | 2015-12-15 |
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