JP5162386B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation apparatus that displays a facility image indicating a facility on a display means.

  Conventionally, a navigation apparatus that displays a facility image indicating a facility on a display means is known. Such a navigation device is intended to allow a user to recognize the presence or position of a facility by overlaying and displaying the facility image at a position on the map corresponding to the location of the facility that actually exists. It is.

  However, there are cases where facilities are densely populated in cities and the like, and in such a case, displaying all the existing facility images causes a problem that a plurality of facility images are displayed in an overlapping state, making it difficult to see the display. .

  In order to solve such a problem, a navigation device that can display only necessary facility images is desired.

  Japanese Unexamined Patent Application Publication No. 2006-275663 discloses a vehicle navigation device that detects a vehicle state and displays only necessary facility images according to the detected vehicle state.

This patent document 1 detects a vehicle state and determines a facility image to be displayed on a display unit based on the detected vehicle state. The vehicle state is, for example, a state in which the remaining amount of gasoline is a predetermined amount or less. . That is, the remaining amount of gasoline is detected, and when it is detected that the detected remaining amount of gasoline is equal to or less than a predetermined amount, a facility image indicating a gas station is displayed on the display means. And the facility image which shows the gas station displayed when it detects that the fuel supply was performed and the gasoline remaining amount became more than predetermined amount is made non-display.
JP 2006-275663 A

  However, not all gas stations are the same brand. That is, even if a low gasoline remaining amount is detected as a vehicle state and a facility image indicating a gas station is displayed on the display means, a branded gas station not desired by the user is displayed in the displayed gas station. It is also possible that

  For a user, it is desirable that a facility image indicating an undesired gas station is not displayed on the display unit, and only a facility image indicating a desired gas station is desirably displayed. There is no description of a technique for not displaying a facility image indicating a gas station that is not.

  In order to solve the above problems, the present invention specifies a brand of a facility that has passed when a user (vehicle) passes without stopping at the facility, and identifies the identified brand among the facility images displayed on the display means. An object of the present invention is to provide a navigation device that hides facility images of the same brand.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
Storage means for storing facility information including at least a facility type, a plurality of brands belonging to the facility type, a facility image and a facility position for each brand, and map information;
A navigation device comprising: control means for superimposing the facility image on the map information stored in the storage means and displaying the facility image on a display means;
The navigation device includes a current position detecting means for detecting a current position,
The control means determines whether or not the current position detected by the current position detection means has passed one of the facility positions. If it is determined that it has passed, it is the same as the brand of the facility that has passed. The display of the brand facility image is erased.

  According to a second aspect of the present invention, the control means detects a vehicle state and superimposes a brand facility image belonging to the facility type corresponding to the vehicle state on the map information and displays it on the display means. It is characterized by that.

  According to a third aspect of the present invention, the control means detects the gasoline remaining amount of the vehicle, and when it detects that the gasoline remaining amount is not more than a predetermined amount, the facility image of the brand belonging to the gas station is displayed on the display means. Is superimposed on the map information and displayed on the display means.

  Further, the invention according to claim 4 is characterized in that, when the control means detects that it has stopped at a gas station, the facility image of the brand belonging to the gas station displayed on the display means is not displayed. To do.

  Further, in the invention according to claim 5, the control means detects whether or not the vehicle has stopped for a predetermined time or more, and detects that the vehicle has stopped for a predetermined time or more by the detection, the current position detection means. The facility image of the facility existing in the vicinity of the current position detected by the above is displayed on the display means.

The invention according to claim 6 comprises an operation means for selecting a facility type,
The control means is characterized in that a brand facility image belonging to the facility type selected by the operation means is superimposed on the map information and displayed on the display means.

  The invention according to claim 7 is characterized in that the control means displays the facility image existing forward in the traveling direction in a superimposed manner on the map information, and does not display the facility image existing backward in the traveling direction. To do.

In the invention according to claim 8, the facility information includes a passing point on a road corresponding to the facility,
The control means determines whether or not the vehicle has passed through the facility from the current position detected by the current position detection means and the passing point.

  In the present invention, the facility type corresponding to the detected vehicle state is specified, the facility image of the brand belonging to the specified facility type is displayed on the display means, the brand that the user does not desire is further specified, and the brand that is not desired It is possible to provide only necessary information for the user by hiding the facility image of the same brand from the display means.

  FIG. 1 is a block diagram showing a configuration of a navigation device 1 according to an embodiment of the present invention.

  The control means 10 is composed of a processor composed of a CPU, a ROM, and a RAM, and controls the operation of each part in the navigation device 1 by the CPU performing arithmetic processing based on various control programs stored in the ROM.

  The current position detection means 11 is composed of, for example, a GPS receiver and receives radio waves including time information from a plurality of GPS satellites orbiting the earth and calculates current position information based on the received radio waves. It is. Furthermore, the current position detection means 11 may be used in combination with a self-contained navigation means including a steering angle sensor, an acceleration sensor, a distance sensor, a direction sensor, and the like not shown. In this case, the current position is obtained by detecting the travel distance and travel direction of the vehicle and adding these values to the reference position.

  The storage means 12 is composed of a storage medium such as an HDD (Hard Disk Drive), DVD-ROM, CD-ROM, etc., and stores map data.

  The map data includes road data including road node data that uses nodes such as intersections and branch points of each road as nodes, and road link data that links routes connecting each node, as well as the location and name of the facility. The facility data including is stored. The facility data includes facility image data (hereinafter referred to as a landmark), as well as point data on the road link closest to the facility (closest to the facility from the position coordinates of the center point of the facility stored in advance) It also includes the coordinates of the point where the perpendicular line is dropped on the road link). This point is used for determining whether or not the vehicle has arrived at the facility, and the current position of the vehicle detected by the current position detecting means 11 is a point on the road link stored corresponding to the facility. It is possible to determine the point of arrival or approaching a predetermined distance as the point of arrival at the facility. This point will be described as a passing point of the facility in the following description.

  The facility data is classified into a plurality of types (hereinafter referred to as facility types). The facility types are, for example, gas stations, convenience stores, restaurants, etc., and the facility types are classified into a plurality of brands.

  FIG. 2 shows the facility data stored in the storage means 12. In FIG. 2, an example in which the gas stations (facility types) are classified into the gas station A, the gas station B, and the gas station C by brand. Show.

  The map data may further include map image data stored in a vector format for easy display of the map image, in addition to background data including coastal lines, lakes, river shapes, and other water system data and administrative boundary data. .

  When the navigation device 1 is used, the road data, background data, and map image data are extracted by the control means 10 from the storage means 12 in a predetermined range including the current position of the navigation device 1, and the current position is determined. The current position mark and the guide route image shown are superimposed and displayed on the display means. The map image is scrolled as the vehicle travels, and the current position detected by the current position detecting means 11 is displayed at the center of the display screen.

  The operation unit 13 includes a hard key and a remote controller provided on the navigation device 1 main body, and a touch panel provided on the front surface of the display unit, and is an interface for a user to send an instruction to the control unit 10.

  The output unit 14 includes a display unit and a speaker (not shown). At the time of route guidance, the display unit displays a current position mark indicating a current position and a guidance route image, and the speaker makes a right turn, a left turn, etc. on the guidance route. Voice guidance data corresponding to the guide points is output. Guidance data including the image of the current position mark and the guidance route image displayed on the display means, and further guidance points such as right and left turns on the guidance route and voice guidance data output at the guidance points are stored in the storage means 12. Shall.

  Next, the vehicle state detection operation of the control means 10 in the present navigation device 1 will be described.

  The control means 10 detects whether or not the amount of gasoline remaining in the vehicle is equal to or less than a predetermined amount based on detection by a gasoline remaining amount detection sensor (not shown). The predetermined amount or less is, for example, a state where the remaining amount is 10 liters or less.

  The detection of whether or not the remaining amount of gasoline is less than the predetermined amount can be detected if the warning lamp that is turned on when the remaining amount of gasoline provided in a part of the meter display in the vehicle can be detected. It is also possible to determine the time when the gasoline remaining amount becomes a predetermined amount or less.

  Further, it is detected that the vehicle engine is turned ON or OFF by detecting ON / OFF of an ignition switch (not shown).

  Further, based on the detection of the vehicle speed sensor included in the current position detection means 11, the time point at which the vehicle speed is detected is determined as the vehicle travel start time point, and the time point at which the vehicle speed cannot be detected is determined as the vehicle stop time point.

  Further, in addition to the detection of the ignition switch and the vehicle speed sensor, whether or not a predetermined time or more has passed since the vehicle engine was turned on and the vehicle started running based on the measurement of a timer measurement unit (not shown), or the vehicle stopped It is detected whether or not a predetermined time or more has passed.

  When detecting the vehicle state, the control means 10 specifies the facility type corresponding to the next detected vehicle state from the facility data, and is detected by the current position detection means 11 among the brand facilities belonging to the specified facility type. The landmarks indicating the facilities existing around the current position are displayed on the display unit so as to overlap the map image. Therefore, it is assumed that the facility type stored in the storage unit 12 is stored corresponding to the vehicle state. For example, since it is considered that refueling is necessary when a decrease in the gasoline remaining amount is detected, a gas station is stored as the facility type corresponding to the vehicle state (reduction in gasoline remaining amount).

  Next, the vehicle state detection operation by the control means 10 and the landmark display control operation of the brand facility belonging to the facility type corresponding to the detected vehicle state will be described using the flowchart of FIG.

  In the flowchart of FIG. 3, the detection of the remaining amount of gasoline is described as the detection of the vehicle state.

  In step S1, the remaining amount of gasoline in the vehicle is detected based on detection by a gasoline remaining amount detection sensor (not shown), and then in step S2, whether the remaining amount of gasoline detected in step S1 is equal to or less than a predetermined amount. Detect whether or not.

  When it is detected in the process of step S2 that the gasoline remaining amount is equal to or less than the predetermined amount, the vehicle state (gasoline remaining) detected in the process of step S2 is determined from the facility data stored in the storage means 12 in the process of step S3. The facility type (gas station) corresponding to the (decrease in amount) is specified, and then in the process of step S4, the current position is detected among the brands (gas stations by brand) belonging to the facility type (gas station) specified in step S3. A landmark indicating a gas station by brand existing around the current position of the vehicle detected by the means 11 is displayed on the display means so as to overlap the map image. At this time, the scale of the map displayed on the display means can be set to a scale that can display all the landmarks indicating the gas stations by brand existing around the current position described in step S4.

  In the following description, the brand-specific gas station is simply referred to as a gas station.

  The periphery of the current position can be, for example, a range with a radius of 1 km centering on the current position of the vehicle. Further, the area around the current position is defined as a range extending at a predetermined angle in front of the vehicle traveling direction. Since it is considered that the possibility that the vehicle will stop at the facility existing behind the vehicle that has already passed is low as a possibility that the vehicle will stop at the facility, for example, within a radius of 1 km around the current position of the vehicle and 180 A range of less than or equal to the degree can be set around the current position.

  If the vehicle is running, the current position of the vehicle changes from time to time, so as the vehicle's current position changes, search for gas stations around the current position at predetermined intervals, and display the latest current A landmark indicating a gas station existing around the location shall be displayed.

  When it is detected in the process of step S2 that the remaining amount of gasoline is equal to or greater than the predetermined amount (N in step S2), the process proceeds to step S12 to detect whether or not the apparatus is turned off and the apparatus is turned off. If this is detected (Y in step S12), this operation is terminated. If the apparatus is not turned off (N in step S12), the process returns to step S1, and the remaining amount of gasoline is detected again.

  FIG. 4 shows a state in which it is detected that the remaining amount of gasoline is equal to or less than a predetermined amount, and a landmark indicating a gasoline station existing around the current position is displayed on the display means.

  In FIG. 4, the current position mark S of the vehicle and the brand-specific gas stations A, B, and C described in FIG. 2 are displayed.

  In the process of step S4, if a landmark indicating a gas station existing around the current position of the vehicle is displayed on the display means, then in the process of step S5, the current position of the vehicle detected by the current position detection means 11 is displayed. The position of the gas station displayed on the means is compared. In this process, the position coordinates of the passing point stored for each gas station and the position coordinates of the current position of the vehicle are compared.

  When the comparison is made in the process of step S5, it is detected in the process of step S6 whether or not the current position of the vehicle matches the passing point stored corresponding to any of the gas stations. If a match is detected at this time, it can be determined that the facility has been reached.

  FIG. 5 shows a state where the current position of the vehicle has reached a passing point corresponding to the gas station C. The passing point corresponding to the gas station C is a point X shown in FIG. In FIG. 6, a point X where a perpendicular line is dropped from the coordinate Z of the central point of the gas station C onto the road link L1 closest to the gas station C is defined as a passing point of the gas station C. Is determined as the time when the vehicle reaches the gas station C.

  In the process of step S6, when it is detected that the current position of the vehicle has reached one of the gas stations (Y in step S6), next, in the process of step S7, the vehicle has detected arrival in the process of step S6. Whether or not the vehicle has stopped at the gas station is detected, and when the vehicle has stopped (Y in step S7), it is determined that the vehicle has stopped at the gas station that has been detected in step S6.

  If it is detected in step S6 that none of the gas stations has been reached (N in step S6), the process proceeds to step S12 to detect whether or not the apparatus is turned off.

  The stop of the vehicle can be detected by detecting OFF of an ignition switch (not shown). In addition, even when the ignition switch is turned on, the vehicle stop can be detected as the vehicle stop time when the vehicle speed cannot be detected. Normally, when the gasoline is refueled, the vehicle engine is Since the vehicle is turned off, the vehicle stoppage in this embodiment is detected using ON / OFF of the ignition switch.

  Even if you stop by a gas station, it may be possible to stop for a purpose other than refueling (toilet break, tire change, etc.). When it is detected whether or not the fuel amount exceeds the predetermined amount, and it is detected that the remaining amount of gasoline exceeds the predetermined amount (Y in step S8), it is determined that refueling has been performed at the gas station at which the vehicle stopped, and displayed on the display means All landmarks indicating the gas station are hidden, and the process returns to step S1 again to detect the remaining amount of gasoline.

  When it is detected in the process of step S8 that the remaining amount of gasoline remains below the predetermined amount (N in step S8), the process returns to step S4 and continues. Further, in the process of step S7, when it is detected that the vehicle has passed without stopping at the gas station where the arrival is detected in the process of step S6 (N in step S7), it is stored in the storage means 12 in the process of step S10. Based on the facility data, the gas station brand that has been detected to pass in the process of step S7 is identified, and the gas station of the same brand as the identified brand is identified from the facility data (step S10). When the same brand gas station is identified in the process of step S10, the brand identified in the process of step S10 among the landmarks indicating the gas station present around the current position displayed on the display means in the process of step S11. The landmark indicating the gas station is hidden, and the process returns to step S4 to continue the process. In addition, the process of step S4 after hiding the landmark indicating the same brand gas station in the process of step S11 is the brand excluding the brand specified in the process of step S10 among the gas stations existing around the current position. It is assumed that the landmark indicating the gas station is displayed.

  In this way, a landmark indicating a gas station existing around the current position of the vehicle is superimposed on the map image and displayed on the display means, and when the vehicle passes without stopping at any of the gas stations displayed, it is used. The user determines that he / she does not want the gas station that has passed, and hides the landmark that indicates the gas station of the same brand as the gas station that has passed among the landmarks displayed on the display means. Can display only the landmarks of the desired gas station, and when many landmarks are displayed in the city or the like, it is possible to avoid a state in which many landmarks are mixed and difficult to view.

  In addition, the following method can be considered as a method of detecting that the vehicle has passed without stopping at the gas station.

  As shown in FIG. 6, in the facility data, in addition to the position coordinates X of the passing point corresponding to the gas station C, a plurality of position coordinates continuous with the position coordinates of the point are stored (in FIG. 6). The position coordinates X1 and X2) and the position coordinates of the current position of the vehicle have moved to the next position coordinates X1 or X2 existing forward in the traveling direction without stopping at the position coordinates X of the passing point corresponding to the gas station C. When this is detected, this time can be set as the time when the vehicle passes through the gas station C.

  The position coordinates X1 and X2 shown in FIG. 6 can be calculated from the position coordinates of the passing point X corresponding to the gas station C and the position coordinates of the road node n or n2 located at both ends of the road link L1. it can.

  The facility data also includes facility data that stores facility entrance data (entrance position coordinates). In such a facility, a point on the road link closest to the position coordinates of the entrance data of the facility can be set as a passing point corresponding to the facility. In some cases, the entrance of the facility may be ahead of the point on the road link closest to the center of the facility in the direction of travel. In such a case, a point on the road link closest to the center of the facility passes through. When used as a point, it is actually determined that the facility has been stopped, but it is erroneously determined that the facility has been passed when a point on the road link closest to the center of the facility is passed. Therefore, in the facility where the entrance data of the facility is stored, the passing point considering the entrance data is used.

  In the above-described embodiment, the detection of the vehicle state by the control means 10 has been described as detection of the remaining amount of gasoline.

  For example, if it is detected that the current time is at any time of breakfast, lunch, or dinner based on the measurement of a clock unit (not shown), the restaurant is identified as the facility type, and the display means Can display landmarks indicating restaurants around the current position. At this time, the restaurants in the facility data stored in the storage means 12 are stored in advance according to the time of day, divided into stores used for breakfast, stores used for lunch, and stores used for dinner, and the detected time Depending on the band, a landmark indicating a restaurant corresponding to the corresponding time zone is displayed.

  Further, when it is detected that the ignition switch is turned on (the engine is turned on), and further after a predetermined time (for example, continuously 2 hours) has elapsed since the vehicle speed is detected, it is continuously continued for a long time. Since driving will cause an accident, a landmark indicating the facility (convenience store, roadside station, etc.) around the current location that can be rested will be displayed on the display means, and the user will be rested. Can be encouraged.

  In the above embodiment, when the vehicle state is detected by the control means 10, the landmark of the facility corresponding to the detected vehicle state is displayed. However, the present invention is not limited to this. When a desired facility type is designated via the operation means 13, a brand landmark belonging to the designated facility type can be displayed on the display means.

It is a block diagram which shows the structure of the navigation apparatus 1 of this invention. The facility data memorize | stored in the memory | storage means 12 is shown. The vehicle state detection operation | movement by the control means 10 and the landmark display control operation | movement of the brand facility which belongs to the facility classification corresponding to the detected vehicle state are shown. It is a figure which shows the landmark displayed on the display means. It is the figure which showed the state which the vehicle reached | attained one of the facilities displayed on the display means. It is a figure explaining the passing point corresponding to facilities.

Explanation of symbols

1: Navigation device 10: Control unit 11: Current position detection unit 12: Storage unit 13: Operation unit 14: Output unit

Claims (8)

Storage means for storing facility information including at least a facility type, a plurality of brands belonging to the facility type, a facility image and a facility position for each brand, and map information;
A navigation device comprising: control means for superimposing the facility image on the map information stored in the storage means and displaying the facility image on a display means;
The navigation device includes a current position detecting means for detecting a current position,
The control means determines whether or not the current position detected by the current position detection means has passed one of the facility positions. If it is determined that it has passed, it is the same as the brand of the facility that has passed. A navigation device that erases the display of a brand facility image.   The said control means detects a vehicle state, The facility image of the brand which belongs to the said facility classification corresponding to this vehicle state is superimposed on the said map information, and it displays on the said display means. Navigation device.   The control means detects the amount of gasoline remaining in the vehicle, and when detecting that the amount of gasoline remaining is a predetermined amount or less, the display means superimposes a facility image of a brand belonging to a gas station on the map information. The navigation device according to claim 2, wherein the navigation device displays the information on a display unit.   4. The navigation apparatus according to claim 3, wherein when the control unit detects that the vehicle has stopped at a gas station, the facility image of a brand belonging to the gas station displayed on the display unit is not displayed.   The control means detects whether or not the vehicle has stopped for a predetermined time or more, and if it detects that the vehicle has stopped for a predetermined time or more, it is present around the current position detected by the current position detection means. The navigation apparatus according to claim 2, wherein a facility image of a facility to be displayed is displayed on the display unit. It has an operation means to select the facility type,
The navigation device according to claim 1, wherein the control unit superimposes a brand facility image belonging to the facility type selected by the operation unit on the map information and displays the image on the display unit.   The said control means superimposes and displays the facility image which exists in the advancing direction on the said map information, and does not display the facility image which exists in the advancing direction back. The navigation device described. The facility information includes a passing point on the road according to the facility,
The navigation device according to any one of claims 1 to 7, wherein the control means determines whether or not the vehicle has passed through a facility from the current position detected by the current position detection means and the passing point. .

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