JP2009025173A - Onboard navigation system and icon display method in the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for displaying information in such a way as to attract a user's attention in an onboard navigation system. <P>SOLUTION: The onboard navigation system 100 continuously displays first information (for example, a speed meter) to be continuously displayed to the user and additionally displays second information (for example, an icon indicating the remaining quantity of gasoline) to attract the user's attention. Then the onboard navigation system 100 determines prescribed conditions and gradually brings a display location of the second information to a display location of the first information according to the conditions. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a navigation device, and more particularly to a display technique in an in-vehicle navigation device.

  There is an in-vehicle navigation device that displays a warning indicating that the remaining amount of gasoline is low. Such a navigation device is described in Patent Document 1, for example.

JP 2006-266840 A

  However, it cannot be said that the user can be sufficiently alerted only by displaying a warning.

  An object of the present invention is to provide a technique for displaying information so that a user can be alerted in an in-vehicle navigation device.

  The in-vehicle navigation device of the present invention for solving the above-described problem continuously displays first information that should be continuously displayed to the user, and second information that should alert the user. Display means for additionally displaying, a situation determination means for determining a predetermined situation, and the display position of the second information according to the situation determined by the situation determination means. Display position moving means for gradually approaching the display position.

  According to the vehicle-mounted navigation device of the present invention, information can be displayed so that the user can be alerted.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of an in-vehicle navigation device 100 to which an embodiment of the present invention is applied. As shown in the figure, the in-vehicle navigation device 100 includes an arithmetic processing unit 1, a display 2, a storage device 3, a voice input / output device 4, an input device 5, a gasoline remaining amount sensor 6, a vehicle speed sensor 7, A gyro sensor 8, a GPS receiver 9, an FM multiplex broadcast receiver 10, and a beacon receiver 11 are provided.

  The arithmetic processing unit 1 is a central unit that performs various processes. For example, the present location is detected based on information output from the various sensors 7 and 8 and the GPS receiver 9. Further, map data necessary for display is read out from the storage device 3 based on the obtained current location information. Further, the read map data is developed in graphics, and a mark indicating the current location is superimposed on the map data and displayed on the display 2. In addition, the map data stored in the storage device 3 is used to search for an optimum route (recommended route) that connects the starting point (current location) instructed by the user and the destination. Further, the user is guided using the voice input / output device 4 and the display 2.

  The display 2 is a unit that displays graphics information generated by the arithmetic processing unit 1. The display 2 is composed of a CRT, a liquid crystal display, or the like. For example, as shown in FIG. 2, the display 2 is installed near the handle 21 of the dashboard 22 inside the vehicle.

  The storage device 3 includes a storage medium such as a CD-ROM, DVD-ROM, HDD, or IC card. For example, map data 310 is stored in this storage medium.

  A schematic data structure of the map data 310 is shown in FIG. The map data 310 includes, for each mesh identification code (mesh ID) 311 which is a partitioned area on the map, link data 320 of each link constituting a road included in the mesh area.

  The link data 320 includes, for each link ID 321, coordinate information 322 of two nodes (start node and end node) constituting the link, road type information 323 including the link, link length information 324 indicating the link length, link A travel time 325, a link D (connection link ID) 326 of a link connected to each of the two nodes, peripheral facility information 327, and the like are included. Here, by distinguishing the start node and the end node for the two nodes constituting the link, the upward direction and the downward direction of the same road can be managed as different links. Further, the link travel time 325 may be a link travel time associated with each condition such as date and weather. Further, the map data 310 includes intersection position information, and also includes a node ID of a node corresponding to the intersection.

  The peripheral facility information 327 includes facility information located around each link. The facility information includes, for example, location information of facilities such as “convenience store” and “gas station” and location information of road signs such as “school zone”.

  Returning to FIG. The voice input / output device 4 converts the message to the user generated by the arithmetic processing unit 1 into a voice signal and outputs it. Also, a process of recognizing the voice uttered by the user and transferring the contents to the arithmetic processing unit 1 is performed.

  The input device 5 is a unit that receives instructions from the user. The input device 5 includes a power button, a scroll key, a hard switch such as a scale change key, a joystick, a touch panel pasted on a display, and the like.

  The gasoline remaining amount sensor 6 detects the remaining amount of gasoline in a gasoline tank (not shown) provided in the vehicle. For example, the gasoline remaining amount sensor 6 is constituted by a liquid level sensor or the like.

  The sensors 7 and 8 and the GPS receiver 9 are used for detecting the current location (own vehicle position) by the vehicle-mounted navigation device 100. The vehicle speed sensor 7 measures the distance from the product of the circumference of the wheel and the measured rotational speed of the wheel, and further measures the angle at which the moving body is bent from the difference in rotational speed of the paired wheel. The gyro sensor 8 is composed of an optical fiber gyro, a vibration gyro, or the like, and detects an angle at which the moving body rotates. The GPS receiver 9 receives a signal from a GPS satellite and measures the distance between the mobile body and the GPS satellite and the rate of change of the distance with respect to three or more satellites to thereby determine the current position, travel speed, and travel of the mobile body. Measure orientation.

  The FM multiplex broadcast receiving apparatus 10 receives traffic jam information, regulation information, SA / PA (service station / parking) information, parking lot information, weather information, and the like transmitted from an FM multiplex broadcast station as an FM multiplex broadcast signal.

  The beacon receiving device 11 receives traffic jam information, regulation information, SA / PA information, parking lot information, and the like sent from the beacon.

  FIG. 4 is a functional block diagram of the arithmetic processing unit 1. As shown in the figure, the arithmetic processing unit 1 includes a main control unit 101, an input reception unit 102, a display processing unit 103, an icon movement processing unit 104, a gasoline remaining amount acquisition unit 105, and a current position calculation unit 106. A route guidance unit 107, a reception information processing unit 108, and a setting processing unit 109.

  The main control unit 101 performs a process of controlling each unit of the arithmetic processing unit 1 in an integrated manner.

  The input receiving unit 102 receives a request from a user input to the input device 5 and analyzes the request content. The input receiving unit 102 notifies the main control unit 101 of data corresponding to the analysis result. For example, the input reception unit 102 receives a request to turn on / off the power supply to the vehicle-mounted navigation device 100 and notifies the main control unit 102 of the request. The input receiving unit 102 receives settings related to various functions of the in-vehicle navigation device 100 and notifies the main control unit 102 of the settings.

  The display processing unit 103 displays a map, a speedometer, and the like on the display 2. Specifically, the display processing unit 103 generates and notifies a drawing command to be displayed on the display 2. When displaying the map on the display 2, the display processing unit 103 extracts the map data 310 in the area requested to be displayed (for example, near the current position) from the storage device 3, and specified scale. The map drawing command is generated so as to draw marks such as roads, other map components, current positions, destinations, and arrows for recommended routes in the drawing method. In addition, when displaying the speedometer on the display 2, the display processing unit 103 acquires the speed of the host vehicle from the vehicle speed sensor 6 and puts the speedometer in a predetermined area (position) on the screen displayed on the display 2. Generate a speedometer drawing command to draw The speedometer is usually information that is continuously displayed and needs to be frequently viewed by the user, and is displayed in a predetermined area of the display 2 (for example, the central area of the display 2).

  The icon movement processing unit 104 performs a process of moving the icon displayed on the display 2. Here, the movement of the icon is performed to alert the user. Specifically, the icon movement processing unit 104 moves an icon for alerting the user so as to approach the display position direction of the speedometer according to the degree of attention. The icons to be moved include, for example, a gasoline remaining amount icon 200 indicating the remaining amount of gasoline, a facility icon 201 indicating the location of a convenience store or a gas station, a sign icon 202 indicating a school zone, and the like (FIGS. 9 and 9). 10, FIG. 12, FIG. 13).

  Further, when moving the icon, the icon movement processing unit 104 refers to the first icon position table 500 shown in FIG. 5 or the second icon position table 600 shown in FIG. For example, when moving the gasoline remaining amount icon 200, the icon movement processing unit 104 refers to the first icon position table 500 to determine the icon display position. Further, when the facility icon 201 and the sign icon 202 are moved, the display position of the icon is referred to by referring to the second icon position table 600 and the direction of the display object (facility or sign) viewed from the own vehicle. decide.

  The first icon position table 500 stores data for specifying the icon display position according to the remaining amount of gasoline. For example, as shown in FIG. 5, the first icon position table 500 stores a gasoline remaining amount 510, an icon display position 520, and an icon type 530 in association with each other. The remaining amount of gasoline 510 is data indicating the ratio of the remaining amount of gasoline to the total amount of gasoline that can be put in the gasoline tank, and is, for example, a character string such as “50% or more” or “less than 50%”. The icon display position 520 is a coordinate for determining a position where the gasoline remaining amount icon 200 is displayed on the display screen of the display 2, and is a coordinate value such as “(250, 0)”, for example. The coordinate value here is set so that the gasoline remaining amount icon 200 is closer to the display position of the speedometer as the gasoline remaining amount is smaller. The icon type 530 is data indicating the type of icon to be displayed on the display 2 and includes, for example, the file name (for example, normal icon) and path of the icon stored in the storage device 3.

  The second icon position table 600 stores data for specifying the icon display position according to the distance between the display object (facility or sign) and the host vehicle. For example, in the second icon position table 600, as shown in FIG. 6, a distance 610 to the display object, an icon display distance 620, and an icon type 630 are stored in association with each other. The distance 610 to the display object is data indicating the distance between the display object (facility or sign) and the current position of the host vehicle, and is, for example, a character string such as “1 km or more” or “less than 1 km”. The icon display distance 620 is data for determining the position where the facility icon 201 and the sign icon 602 are displayed on the display screen of the display 2. For example, the icon display distance 620 is a speedometer and icon (“300”, “250”). 201, 202) (indicated by the number of pixels). The distance here is set so that the icons (201, 202) are closer to the display position of the speedometer as the distance between the facility to be moved (including signs and the like) and the current position of the host vehicle is shorter. . The icon type 630 is data indicating the type of icon to be displayed on the display 2, and includes, for example, an icon file name (for example, a first stage icon) and a path stored in the storage device 3.

  Note that the first icon position table 500 and the second icon position table 600 are stored in the storage device 3.

  Returning to FIG. 4, the gasoline remaining amount acquisition unit 105 acquires the gasoline remaining amount (S <b> 5) of a gasoline tank (not shown) of the host vehicle from the gasoline remaining amount sensor 6. For example, the gasoline remaining amount acquisition unit 105 periodically accesses the gasoline remaining amount sensor 6 at predetermined time intervals and acquires the gasoline remaining amount (S5).

  The current position calculation unit 106 uses distance data and angle data obtained by integrating the distance pulse data (S6) measured by the vehicle speed sensor 7 and the angular acceleration data (S7) measured by the gyro sensor 8, respectively. By integrating the data on the time axis, the current position (X ′, Y ′), which is the position after traveling the vehicle, is periodically calculated from the initial position (X, Y). Further, by performing map matching processing using the calculation result, the current location is matched with the road (link) having the highest shape correlation. Further, the current position is corrected periodically using the output (S8) of the GPS receiver 9.

  The route guidance unit 107 uses a Dijkstra method or the like to search for a route that minimizes the cost (for example, distance and travel time) of a route connecting between two designated points (current location, destination), and the searched route Route guidance using. For example, the route guidance unit 107 compares the route information with the current location information, and displays on the display 2 whether to go straight ahead or turn left or right before passing an intersection (turn-by-turn display). The user is notified by voice using the voice input / output device 4. Further, the route guiding unit 107 displays the recommended route on the map displayed on the display 2.

  The reception information processing unit 108 stores the traffic jam information (S9, S10) and the regulation information (S9, S10) received by the FM multiplex broadcast receiving device 10 and the beacon receiving device 11 in the storage device 3.

  The setting processing unit 109 performs processing for storing various setting contents regarding various functions of the in-vehicle navigation device 100 in the storage device 3. For example, the setting processing unit 110 performs a process of setting a position for displaying the speedometer on the display screen of the display 2. Specifically, the setting processing unit 109 receives data (coordinate values) specifying the position where the speedometer is displayed from the input device 5 (S4) via the input accepting unit 102. Value) is received and stored in the storage device 3.

  The arithmetic processing unit 1 having the above functions is realized by a hardware configuration as shown in FIG. 7, for example.

  As shown in the figure, the arithmetic processing unit 1 has a configuration in which devices are connected by a bus 712. The arithmetic processing unit 1 includes a CPU (Central Processing Unit) 701 that executes various processes such as numerical calculation and control of each device, and a RAM (temporarily storing map data and arithmetic data read from the storage device 3). Random Access Memory) 702, ROM (Read Only Memory) 703 for storing programs and data, DMA (Direct Memory Access) 704 for executing data transfer between the memories and between the memory and each device, and graphics drawing Controller 705 for executing display and controlling display, VRAM (Video Random Access Memory) 706 for storing graphic image data, color palette 707 for converting image data into RGM signals, and converting analog signals into digital signals. A / D converter 708 and a serial signal synchronized with the bus 712 It has a SCI (Serial Communication Interface) 709 which converts the signal, synchronizes the parallel signals to the bus and PIO (Parallel Input / Output) 710 for mounting on the bus 512, a counter 711 for integrating a pulse signal.

  Next, the operation of the in-vehicle navigation device 100 having the above configuration will be described. FIG. 8 is a flowchart showing a gasoline icon moving process performed by the arithmetic processing unit 1 of the in-vehicle navigation device 100.

  The main control unit 101 of the arithmetic processing unit 1 starts the gasoline icon moving process when the vehicle-mounted navigation device 100 is turned on. The power is turned on by a user operating a power button provided on the input device 5.

  The main control unit 101 performs processing for specifying a position for displaying the speedometer on the display screen of the display 2 (step S101). Specifically, the main control unit 101 accesses the storage device 3 and acquires the coordinate value (data specifying the position where the speedometer is displayed) stored by the setting processing unit 109. Thereafter, the main control unit 101 notifies the display processing unit 103 of the acquired coordinate values.

  The display processing unit 103 displays a speedometer at a position on the display screen of the display 2 specified by the coordinate value notified in step S101 (step S102). Specifically, the display processing unit 103 acquires the image data for the speedometer stored in the storage device 3 in advance, and specifies the coordinate value notified from the main control unit 101 on the display screen of the display 2. The acquired image data is displayed at the position to be displayed.

  After displaying the speedometer, the main control unit 101 determines whether it is time to acquire the remaining amount of gasoline (step S103). Specifically, the main control unit 101 measures the time using an internal timer (not shown) included in the CPU 701 of the arithmetic processing unit 100 and obtains a remaining amount of gasoline for a predetermined time (for example, 10 seconds).

  The main control unit 101 waits until the timing for acquiring the remaining amount of gasoline comes (step S103; No), and when the timing comes (step S103; Yes), notifies the gasoline remaining amount acquisition unit 105 to that effect. To do.

  The gasoline remaining amount acquisition unit 105 that has received the notification acquires the remaining amount of gasoline in the gasoline tank (step S104). Specifically, the gasoline remaining amount acquisition unit 105 acquires data indicating the remaining amount of gasoline from the gasoline remaining amount sensor 6 and notifies the icon movement processing unit 104 of the acquired data.

  The icon movement processing unit 104 that has received the notification of the remaining amount of gasoline performs a process of determining the display position of the remaining gasoline icon 200 on the display screen of the display 2 (step S105). Specifically, the icon movement processing unit 104 refers to the first icon position table 500 stored in the storage device 3 when the gasoline remaining amount is notified from the gasoline remaining amount acquiring unit 105, and refers to the gasoline icon remaining table. The display position of the remaining amount icon 200 is determined. For example, if the gasoline remaining amount is 50% or more, the icon movement processing unit 104 extracts the corresponding coordinate value (250, 0) from the first icon position table 500 and sends it to the display processing unit 102. Notice.

  The display processing unit 102 displays the corresponding gasoline remaining amount icon 200 at the position (on the display screen of the display 2) specified by the coordinate value notified from the icon movement processing unit 104 (step S106). Specifically, the display processing unit 102 refers to the first icon position table 500 stored in the storage device 3 when the display position is notified from the icon movement processing unit 104, and displays the remaining gasoline to be displayed. A quantity icon 200 is determined. For example, if the position where the gasoline remaining amount icon 200 is displayed is the coordinate value (250, 0), the display processing unit 102 displays the normal icon (the gasoline remaining amount icon 200 that is lit blue as shown in FIG. 9A). Is acquired from the storage device 3 and displayed on the display position (on the display screen of the display 2) determined in step S105. If the position where the gasoline remaining amount icon 200 is displayed is the coordinate value (100, 0), the display processing unit 102 displays the attention icon (the gasoline remaining amount icon 200 that is lit yellow as shown in FIG. 9B). Is acquired from the storage device 3 and displayed at the display position determined in step S105. Further, if the position where the gasoline remaining amount icon 200 is displayed is the coordinate value (60, 0), the display processing unit 102 displays the warning icon (the gasoline remaining amount icon 200 that is lit in red as shown in FIG. 10A). Is acquired from the storage device 3 and displayed at the display position determined in step S105. Here, the gasoline remaining amount icon 200 displayed by the display processing unit 102 may be an icon including a numerical value of the remaining amount of gasoline as shown in FIG. In this case, when the gasoline remaining amount is acquired from the gasoline remaining amount sensor 6 in step S104, the acquired gasoline remaining amount may be digitized.

  By displaying the gasoline remaining amount icon 200 at the position determined in step S105 as described above, the gasoline remaining amount icon 200 gradually approaches the speedometer position specified in step S101 as the gasoline decreases. Is displayed.

  The arithmetic processing unit 1 repeats the processes of steps S103 to S106 described above until the vehicle navigation device 100 is turned off (step S107; No). When the power of the vehicle-mounted navigation device 100 is turned off (step S107; Yes), the arithmetic processing unit 1 ends the gasoline icon movement process.

  FIG. 11 is a flowchart showing another icon movement process performed by the arithmetic processing unit 1.

  The main control unit 101 of the arithmetic processing unit 1 starts another icon movement process when the vehicle-mounted navigation device 100 is powered on.

  In step S101 and step S102 after the start of processing, processing similar to the gasoline icon movement processing shown in FIG. 8 described above is performed.

  Subsequent to step S102, the current position calculation unit 106 of the arithmetic processing unit 1 performs a process of calculating the current position of the host vehicle (step S201). Specifically, the current position calculation unit 106 calculates the current position based on data output from the vehicle speed sensor 7, the gyro sensor 8, and the GPS receiver 9. At the same time, the current position calculation unit 106 also specifies the direction in which the host vehicle is facing based on the data output from the geomagnetic sensor 8. The current position calculation unit 106 notifies the display processing unit 102 of the calculated current position.

  The display processing unit 102 displays the current position notified from the current position calculation unit 106 on the display screen of the display 2 (step S202). Specifically, the display processing unit 102 reads out map data necessary for display from the storage device 3 based on the current position notified from the current position calculation unit 106, and marks the current map in the read map data. Are displayed on the display 2. Thereby, the display process part 102 can switch the map data displayed on the display 2 according to the present position, when the present position of the own vehicle moves. At this time, the route guiding unit 107 may search for the recommended route and display the recommended route on the map displayed on the display 2.

  After displaying the speedometer and the map data, the main control unit 101 determines whether or not the facility to be moved (including a sign or the like) exists in the predetermined area (step S203). Specifically, first, the main control unit 101 includes the facility to be moved (including signs and the like) included in the peripheral facility information 327 of the map data 310 displayed by the display processing unit 103, the current position, Measure the distance. Subsequently, the main control unit 101 determines whether or not there is a facility (including a sign or the like) whose distance is less than a predetermined value (for example, 3 km) among the facilities to be moved whose distance from the current position is measured. Is determined.

  If the main control unit 101 determines that the facility to be moved (including a sign or the like) is present in the predetermined area (step S203; Yes), the main control unit 101 notifies the icon movement processing unit 104 to that effect and performs the processing step. The process proceeds to S204. On the other hand, if it is determined that the facility to be moved does not exist within the predetermined area (step S203; No), the process proceeds to step S201.

  In step S204, the icon movement processing unit 104 performs a process of determining the display positions of the facility icon 201 and the sign icon 202 on the display screen of the display 2 (step S204). Specifically, the icon movement processing unit 104 refers to the second icon position table 600 stored in the storage device 3 and the direction of the facility to be moved (including signs and the like) as seen from the own vehicle. Thus, the display position of the facility icon 201 or the sign icon 202 is determined. For example, when the facility to be moved (including a sign or the like) is within 3 km (1 km or more) from the current position of the host vehicle, the icon movement processing unit 104 calculates the corresponding distance (300) from the second icon position table 600. Extract. At the same time, the icon movement processing unit 104 determines from the own vehicle of the facility to be moved (including signs and the like) based on the positional relationship between the position of the facility to be moved (included in the peripheral facility information 327) and the current position. Calculate the heading. The icon movement processing unit 104 notifies the display processing unit 102 of the extracted distance (300) and the calculated orientation.

  The display processing unit 102 displays the corresponding facility icon 201 or sign icon 202 at a position (on the display screen of the display 2) specified by the distance and direction notified from the icon movement processing unit 104 (step S205). Specifically, the display processing unit 104 refers to the second icon position table 600 stored in the storage device 3 when notified from the icon movement processing unit 104 and displays the facility icon 201 or the sign to be displayed. The icon 202 is determined. For example, if the distance notified from the icon movement processing unit 104 is 300, the display processing unit 102 stores the first stage icon (lighted (weak) sign icon 202 as shown in FIG. 12A) in the storage device. 3 and displayed at the position specified by the distance and direction notified from the icon movement processing unit 104 in step S204. Further, if the distance notified from the icon movement processing unit 104 is 150, the display processing unit 102 stores the second stage icon (the indicator icon 202 that is lit (medium) as shown in FIG. 12B) as a storage device. 3 and displayed at the position specified by the distance and direction notified from the icon movement processing unit 104 in step S204. Further, if the distance notified from the icon movement processing unit 104 is 70, the display processing unit 102 stores the third stage icon (lighted (strong) indicator icon 202 as shown in FIG. 13A) in the storage device. 3 and displayed at the position specified by the distance and direction notified from the icon movement processing unit 104 in step S204. If it is determined in step S203 that there are a plurality of facilities to be moved (including signs and the like) in the predetermined area, the display processing unit 102 displays a plurality of facilities as shown in FIG. The icon 201 or the sign icon 202 is displayed simultaneously.

  As described above, by displaying the facility icon 201 or the sign icon 202 at the position determined in step S204, the facility icon 201 or the sign icon 202 is gradually increased in step S101 as the host vehicle approaches the corresponding facility or sign. Displayed to approach the specified speedometer position.

  The arithmetic processing unit 1 repeats the processes of steps S201 to S205 described above until the vehicle navigation device 100 is turned off (step S206; No). When the power of the vehicle-mounted navigation device 100 is turned off (step S206; Yes), the arithmetic processing unit 1 ends the other icon movement processing.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation and application are possible.

  For example, in the above-described embodiment, the icon movement processing unit 104 describes a process of moving the gasoline remaining amount icon 200, the facility icon 201, and the sign icon 202. However, the present invention is not limited to this, and the icon movement processing unit 104 is a turn-by-turn display icon 203 for notifying the user whether the host vehicle should go straight or turn right before passing the intersection or the like. May be moved.

  Specifically, the icon movement processing unit 104, when the route guidance unit 107 performs turn-by-turn display, the position of the intersection where the turn-by-turn display icon 203 is displayed, the current position of the host vehicle, The position for displaying the turn-by-turn display icon 203 is determined according to the distance. For example, the icon movement processing unit 104 extracts the corresponding coordinate value (0, 250) from the storage device 3 if the distance between the intersection position to be displayed turn-by-turn and the current position of the host vehicle is 3 km. This is notified to the display processing unit 102. Further, the icon movement processing unit 104 extracts the corresponding coordinate value (0, 150) from the storage device 3 if the distance between the position of the turn-by-turn display target intersection and the current location of the host vehicle is 1 km, This is notified to the display processing unit 102.

  The display processing unit 102 causes the display 2 to display a turn-by-turn display icon 203 corresponding to the display position notified from the icon movement processing unit 104. For example, when the coordinate value (0, 250) is notified from the icon movement processing unit 104, the display processing unit 102 displays a turn-by-turn display icon 203 as shown in FIG. It is displayed at the position specified by the coordinate value (0, 250). When the coordinate value (0, 150) is notified from the icon movement processing unit 104, the display processing unit 102 displays a turn-by-turn display icon 203 as illustrated in FIG. It is displayed at the position specified by the coordinate value (0, 150). Furthermore, when the coordinate value (0, 50) is notified from the icon movement processing unit 104, the display processing unit 102 displays a turn-by-turn display icon 203 as shown in FIG. It is displayed at the position specified by the coordinate value (0, 50).

  Note that when performing turn-by-turn display, three types of turn-by-turn display icons 203 of lighting (weak), lighting (medium), and lighting (strong) may be displayed on the same display screen. .

  Further, the type of turn-by-turn display icon 203 displayed by the display processing unit 102 is not limited to lighting (weak), lighting (medium), and lighting (strong). For example, as shown in FIG. The size of the icon may be small, medium, or large depending on the distance between the position of the turn-by-turn display target intersection and the current position of the host vehicle.

  Further, the icon movement processing unit 104 may move the icon 204 that calls attention to traffic jam. Specifically, the icon movement processing unit 104 refers to the traffic jam information (S9, S10) stored in the storage device 3 by the reception information processing unit 108, identifies the location of the traffic jam road, and identifies the identified location. In accordance with the current position of the host vehicle, the position at which the icon 204 for alerting traffic jams is displayed. For example, if the distance between the position of the congested road and the current position of the host vehicle is 3 km, the icon movement processing unit 104 extracts the corresponding coordinate value (0, 250) from the storage device 3, and Is displayed to the display processing unit 102. Further, the icon movement processing unit 104 extracts the corresponding coordinate value (0, 150) from the storage device 3 if the distance between the position of the congested road and the current position of the host vehicle is 1 km. Is displayed to the display processing unit 102.

  The display processing unit 102 causes the display 2 to display an icon 204 that calls attention to traffic congestion according to the display position notified from the icon movement processing unit 104. For example, when the coordinate value (0, 250) is notified from the icon movement processing unit 104, the display processing unit 102 displays the icon 204 that calls attention to red traffic light as shown in FIG. 250). In addition, when the coordinate value (0, 150) is notified from the icon movement processing unit 104, the display processing unit 102 specifies the icon 204 that calls attention to red-lit traffic jam with the coordinate value (0, 150). Display in position.

  In the above-described embodiment, the types of icons to be moved that are displayed on the display 2 by the display processing unit 102 are described as three types (for example, first-stage, second-stage, and third-stage icons). However, the present invention is not limited to this, and the types of icons to be moved may be arbitrary types such as one type, two types, five types, and twelve types.

  Furthermore, in the above embodiment, the icon movement processing unit 104 refers to a table such as the first icon position table 500 or the second icon position table 600 to determine the position of the icon to be moved. However, the present invention is not limited to this. For example, the icon movement processing unit 104 substitutes the remaining amount of gasoline notified from the remaining gasoline amount acquisition unit 105 into Equation 1 to display the remaining gasoline icon 200. The distance between the position and the display position (center position) of the speedometer may be obtained, and the display position of the gasoline remaining amount icon 200 may be obtained using the obtained distance (as the X coordinate). Further, the icon movement processing unit 104 substitutes the distance between the facility to be moved (including a sign and the like) measured by the main control unit 101 and the current position of the host vehicle into the formula 2, and the facility icon 201 or the sign icon The distance between the display position 202 and the display position of the speedometer may be obtained, and the display position of the facility icon 201 or the sign icon 202 may be obtained using the obtained distance.

Formula 1: X1 = A + B × R1
X1: Relative distance of the icon display position relative to the speedometer display position R1: Remaining gasoline (ratio (%))
A: Distance when the icon display position is closest to the display position (center) of the speedometer (a constant greater than or equal to 0)
B: Coefficient for determining the movement width of the icon according to the change in the remaining amount of gasoline Formula 2: X2 = A + B × R2
X2: Relative distance of the icon display position with respect to the display position of the speedometer R2: Distance (m) between the current position and the target facility
A: Distance when the icon display position is closest to the display position (center) of the speedometer (a constant greater than or equal to 0)
B: Coefficient for determining the movement width of the icon according to the change in the remaining amount of gasoline Note that X1 in Equation 1 is an icon in the first icon position table 500 shown in FIG. 5 when A = 50 and B = 2. This coincides with the X coordinate of the display position 520. Further, X2 in Expression 2 matches the icon display distance 620 of the second icon position table 600 shown in FIG. 6 when A = 50 and B = 0.2.

  Further, when the touch panel (input device 5) on the display 2 is operated so as to select (touch) an icon to be moved, the route guiding unit 107 moves to a position corresponding to the selected (touched) icon. The shortest route may be searched for and route guidance may be performed using the searched route. For example, when the gasoline remaining amount icon 200 is selected (touched), the route guiding unit 107 refers to the map data 310 of the storage device 3 and determines a predetermined condition (for example, a condition such as “closest to the current position”). The route search is performed with the gas station facility that satisfies the conditions as the destination. Thereby, it is possible to guide the route to the gas station without requiring a complicated operation for the user who notices that the gasoline remaining amount is low by looking at the gasoline remaining amount icon 200. When the facility icon 201 is selected (touched), the route guiding unit 107 refers to the map data 310 of the storage device 3 and corresponds to the selected facility icon 201 (for example, a convenience store). The route search may be performed with the facility to be used as the destination.

  Furthermore, in the said embodiment, the fuel of a vehicle is demonstrated as gasoline. However, the present invention is not limited to this. For example, the fuel for the vehicle may be a fuel other than gasoline, such as electricity or hydrogen. In this case, the gasoline remaining amount sensor 6 described above measures the remaining amount of fuel, the gasoline remaining amount acquisition unit 105 performs a process of acquiring the remaining amount of fuel, and the icon movement processing unit 104 determines the gasoline remaining amount. The remaining amount icon 200 may be moved according to the remaining amount of fuel.

1 is a schematic configuration diagram of an in-vehicle navigation device to which an embodiment of the present invention is applied. It is a figure which shows the structural example inside a vehicle. It is a figure which shows the structural example of the map data memorize | stored in the memory | storage device. It is a figure which shows the function structure of an arithmetic processing part. It is a figure which shows the data structural example of a 1st icon position table. It is a figure which shows the data structural example of a 2nd icon position table. It is a figure which shows the hardware constitutions of an arithmetic processing part. It is a flowchart of a gasoline icon movement process. (A) This is a screen display example when the gasoline icon is lit in blue. (B) It is a screen display example in the case of making the gasoline icon light yellow. (A) It is an example of a screen display when a gasoline icon is lit red. (B) It is the example of a screen display in the case of displaying the gasoline icon of numerical description. It is a flowchart of another icon movement process. (A) It is an example of a screen display when a sign icon is lightly lit. (B) It is an example of a screen display in the case of turning on the indicator icon. (A) It is an example of a screen display when a sign icon is strongly lit. (B) It is a screen display example in the case of displaying a sign icon and a facility icon on the same screen. (A) It is a screen display example in the case of displaying an icon for turn-by-turn display. (B) It is a screen display example in the case of changing the size of an icon. It is an example of a screen display in the case of displaying the icon which calls attention of traffic congestion.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Arithmetic processing part, 2 ... Display, 3 ... Memory | storage device, 4 ... Voice input / output device, 5 ... Input device, 6 ... Gasoline residual quantity sensor, 7 ... Vehicle speed sensor, 8 ... Gyro sensor, 9 ... GPS receiver, 10 ... FM multiplex broadcast receiver, 11 ... Beacon receiver, 100 ... In-vehicle navigation device, 101 ... Main Control unit 102 ... Input reception unit 103 ... Display processing unit 104 ... Icon movement processing unit 105 ... Gas remaining amount acquisition unit 106 ... Current position calculation unit 107 Route guidance unit 108 ... Reception information processing unit 109 ... Setting processing unit 200 ... Gas level icon 201 ... Facility icon 202 ... Sign icon 203 ... Turn By-turn display icon, 2 4 ... Icon for alerting traffic jam, 210 ... Speedometer, 310 ... Map data, 320 ... Link data, 327 ... Peripheral facility information, 500 ... First icon position table 600 ... second icon position table, 701 ... CPU.

Claims (11)

An in-vehicle navigation device,
Display means for continuously displaying first information to be continuously displayed to the user and additionally displaying second information to be alerted to the user;
Situation determination means for determining a predetermined situation;
Display position moving means for gradually bringing the display position of the second information closer to the display position of the first information according to the situation determined by the situation determination means;
Comprising
An in-vehicle navigation device characterized by the above. The in-vehicle navigation device according to claim 1,
The first information is information that the user needs to see frequently.
An in-vehicle navigation device characterized by the above. The in-vehicle navigation device according to claim 2,
The information that the user frequently sees is a speedometer,
An in-vehicle navigation device characterized by the above. The in-vehicle navigation device according to any one of claims 1 to 3,
The second information is a remaining amount of gasoline.
An in-vehicle navigation device characterized by the above. The in-vehicle navigation device according to claim 4,
The situation determination means determines the remaining amount of gasoline,
The display position moving means gradually brings the second information closer to the display position of the first information according to the gasoline remaining amount determined by the situation determination means.
An in-vehicle navigation device characterized by the above. The in-vehicle navigation device according to claim 5,
The display means receives an instruction to select the second information,
Route guidance means for guiding a route to a gas station that satisfies a predetermined condition when the display means accepts the instruction;
Comprising
An in-vehicle navigation device characterized by the above. The vehicle-mounted navigation device according to any one of claims 1 to 6,
Storage means for storing in advance the target data included in the map data and the information to be displayed to the user in association with each other,
The situation determination means determines position information indicating a current position of the in-vehicle navigation device,
The display means displays the map data together with the first information and the second information on the same screen,
The display position moving means is a distance between the current position specified by the position information determined by the situation determining means and the position of the target data associated with the second information of the storage means. In response, the second information is gradually brought closer to the display position of the first information.
An in-vehicle navigation device characterized by the above. The in-vehicle navigation device according to claim 7,
The target data is composed of facility data including information related to facilities and road sign data related to road signs.
An in-vehicle navigation device characterized by the above. The vehicle-mounted navigation device according to any one of claims 1 to 8,
When the display position moving means gradually brings the second information closer to the display position of the first information, the display means sets the size of the second information according to the approached amount. Gradually enlarge and display,
An in-vehicle navigation device characterized by the above. The vehicle-mounted navigation device according to any one of claims 1 to 9,
Setting means for setting a display position of the first information;
Further comprising
An in-vehicle navigation device characterized by the above. An icon display method in an in-vehicle navigation device,
A display step of continuously displaying first information to be continuously displayed to the user and additionally displaying second information to be alerted to the user;
A situation determination step for determining a predetermined situation;
A display position moving step of gradually bringing the display position of the second information closer to the display position of the first information according to the situation determined in the situation determination step;
Having
An icon display method characterized by that.

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