JP5102597B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation device that displays a schematic map of a service area or a parking area.

In order to make it easy to grasp the location of a facility in a service area or a parking area, a navigation device that displays a schematic map that simply represents a facility in a service area or a parking area is known as a prior art. (For example, Patent Document 1).
JP 2005-326175 A

  In the conventional navigation device described in Patent Document 1, in the case of a large service area or parking area, or at night, the positional relationship between the facility of the service area or parking area and the position of the vehicle is not known. There is a problem of disappearing.

(1) The navigation device of the invention of claim 1 detects an approach detection means for detecting an approach of a vehicle to a service area or a parking area, a travel direction detection means for detecting a travel direction of the vehicle, and a travel distance of the vehicle. When the entry to the service area or parking area of the vehicle is detected by the approach distance detection means and the approach detection means, a simplified map showing the facility and parking lot in the service area or parking area where the vehicle has entered is displayed. A schematic map display control means for displaying on the monitor. The schematic map display control means is detected by the information on the size of the schematic map , the information on the initial position of the vehicle position in the schematic map, and the traveling direction detection means. Based on the travel direction of the vehicle and the travel distance of the vehicle detected by the travel distance detection means, It calculates the vehicle position of the upper, and displaying the vehicle position at that position.
( 2 ) The invention according to claim 2 is the navigation device according to claim 1 , wherein when the approach detection means detects entry of the vehicle into the service area or parking area , the event of the service area or parking area where the vehicle has entered is detected. A notification means for notifying the user of information or special product information is provided.

  According to the present invention, when the vehicle enters the service area or the parking area, the position of the vehicle is displayed over the schematic map of the service area or the parking area. Therefore, it is possible to grasp the outline of the positional relationship between the facility in the service area or the parking area and the vehicle position.

  FIG. 1 shows a navigation device 1 according to an embodiment of the present invention. When the vehicle enters the service area or the parking area, the navigation device 1 displays a schematic map that simply represents the facility in the service area or the parking area, the arrangement of the parking lot, and the like. Then, the vehicle position is displayed on this schematic map. The navigation device 1 includes a control circuit 11, ROM 12, RAM 13, current location detection device 14, image memory 15, display monitor 16, speaker 17, input device 18, communication device 19, data storage device 110, and disk drive 111. . The disk drive 111 is loaded with a DVD-ROM 112 in which map data is stored.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and performs various controls by executing a control program stored in the ROM 12 using the RAM 13 as a work area. The control circuit 11 performs a predetermined route search process based on the map data stored in the DVD-ROM 112. Then, the processing result is displayed on the display monitor 16 as a recommended route.

  The current location detection device 14 is a device that detects the current location of the vehicle. The current location detection device 14 includes a vibration gyro 14a, a vehicle speed sensor 14b, a GPS (Global Positioning System) sensor 14c, and the like. The vibration gyro 14a detects the traveling direction of the vehicle, the vehicle speed sensor 14b detects the vehicle speed, and the GPS sensor 14c detects a GPS signal from a GPS satellite. The navigation device 1 determines a map display range, a route search start point, and the like based on the current location of the vehicle detected by the current location detection device 14. Further, the current location of the vehicle detected by the current location detection device 14 is displayed on the map as the vehicle position mark.

  The image memory 15 stores image data to be displayed on the display monitor 16. The image data includes road map drawing data and various graphic data, which are appropriately generated in the control circuit 11 based on the map data stored in the DVD-ROM 112.

  The disk drive 111 reads map data from the DVD-ROM 112. The map data includes map display data, route search data, and the like. The map display data and the route search data include road link information and node information stored in the map data. The map display data has map data of a plurality of scales from wide areas to details, and the scale of the display map can be changed according to a user request. The map data may be read from a recording medium other than the DVD-ROM 112, such as a CD-ROM or a hard disk.

  The display monitor 16 provides the user with various information such as a map near the vehicle position as a screen display based on various information such as map data. The speaker 17 outputs sound for instructing the user to perform various input operations and for guiding the route. The input device 18 has operation keys that are operated by a user for setting various commands, and is realized by a button switch on the operation panel, a hard switch around the panel, or the like. The user sets the destination by operating the input device 18 in accordance with an instruction on the display screen of the display monitor 16 or a voice instruction from the speaker 17.

  When the destination is set by the user, a route search end point is set at the destination. Then, route calculation from the route search start point to the route search end point is performed based on a predetermined algorithm using the route search data. The route thus obtained (hereinafter referred to as a recommended route) is displayed on the screen in a manner different from other roads by changing the display form, for example, the display color. Thereby, the user can recognize the recommended route on the map on the screen. Further, the navigation device 1 instructs the user in the direction of travel using a screen or voice so that the vehicle can travel according to the recommended route, thereby guiding the route of the vehicle.

  The communication device 19 is a device that performs data communication with an information center (not shown) using radio waves. Information such as service area and parking area event information and special product information can be acquired from the information center using the communication device 19.

  The data storage device 110 is a storage device configured by a rewritable recording medium such as a flash memory or a hard disk. The data storage device 110 stores information on the service area and the parking area, image data of a schematic map, and the like. In addition, information such as event information and special product information of the service area and parking area acquired from the information center is stored.

  With reference to FIG. 2, the SA / PA data storing information on the service area and the parking area will be described. In SA / PA data, SA / PA name, SA / PA position, outline map file name, display data file name, audio data file name, outline map for each SA / PA-ID for identifying the service area and the parking area. Size information and offset position information are included. The SA / PA name is information on the name of the service area or parking area. The SA / PA position is information on the position (latitude / longitude) of the service area or the parking area. The outline map file name is the file name of the image data of the outline map corresponding to SA / PA-ID.

  The display data file name is a file name of text data for causing the display monitor 16 to display information such as event information and special product information of the service area and parking area acquired from the information center. The audio data file name is a file name of audio data for causing the speaker 17 to output information such as event information and special product information in the service area and parking area acquired from the information center. These text data and voice data are acquired from the information center and stored in the data storage device 110. Further, these text data and voice data are acquired and updated from the information center as needed.

  The outline map size information is information of the size represented by the outline map. The offset position is information on an initial position necessary for displaying a vehicle position mark (to be described later) on the schematic map.

  Next, display of a schematic map of a service area in an embodiment of the present invention will be described with reference to FIG. The vehicle will be described as entering the service area 32. FIG. 3A is a diagram for explaining a display screen displayed on the display monitor 16 before the vehicle enters the service area. On the display screen, a vehicle position mark 31 is displayed at the vehicle position together with a map 30 around the vehicle position.

  FIG. 3B is a diagram for explaining a display screen displayed on the display monitor 16 when the vehicle enters the service area 32. On the display screen, a schematic map 40 of the service area 32 is displayed on a split screen together with a map 30 around the vehicle position. In the schematic map 40, facilities in a service area such as a shopping center and a toilet, a parking lot, and the like are displayed in a simplified manner. Thereby, the user can grasp | ascertain easily the setting position of the facility of a service area, the position of a parking lot, etc. In addition, a vehicle position mark 41 is displayed at a position corresponding to the vehicle position of the schematic map 40.

  As shown in FIG. 3B, when the vehicle enters the service area 32, information 50 such as event information and special product information of the service area 32 is displayed. Also, information 60 such as event information and special product information of the service area 32 is output from the speaker 17 by voice.

  Next, the display process of the schematic map of the service area in the embodiment of the present invention will be described with reference to the flowchart of FIG. The process of FIG. 4 is executed in the control circuit 11 by a program that starts when the vehicle enters the highway. When the vehicle leaves the highway, the program ends.

  In step S401, it is determined whether the vehicle has entered a service area or a parking area. Based on the current location of the vehicle detected by the current location detection device 14, it may be determined that the vehicle has entered the service area or the parking area when the vehicle passes a predetermined position corresponding to the entrance of the service area or the parking area. Good. Further, it may be determined that the vehicle has entered the service area or the parking area when receiving a radio wave from a communication device installed at the entrance of the service area or the parking area. If the vehicle has entered the service area or the parking area, an affirmative determination is made in step S401 and the process proceeds to step S402. If the vehicle has not entered the service area or the parking area, step S401 is repeated.

  In step S402, a schematic map of the service area or parking area where the vehicle has entered is displayed on the display monitor 16. In step S <b> 403, information such as event information and special product information of the service area or parking area where the vehicle has entered is notified to the user using the display monitor 16 and the speaker 17. In step S404, the traveling direction of the vehicle is detected using the vibration gyro 14a. In step S405, the vehicle speed detected by the vehicle speed sensor 14b is integrated over time to calculate the travel distance of the vehicle. In step S406, the vehicle position on the schematic map is calculated.

  A calculation method for calculating the vehicle position on the schematic map 40 will be described with reference to FIG. From the SA / PA data, outline map size information (◯ m × □ m) of the service area or parking area where the vehicle has entered is acquired. Next, the offset position 42a (Δm × ☆ m) of the service area or parking area where the vehicle has entered is acquired from the SA / PA data. The vehicle position when it is determined that the vehicle has entered the service area or the parking area (S401) is set as the offset position 42a. That is, the initial position of the vehicle position on the schematic map 40 is set as the offset position 42a. Thereafter, the vehicle positions 42b to 42f on the schematic map are sequentially calculated based on the traveling direction of the vehicle detected in step S404 and the travel distance of the vehicle calculated in step S405. That is, after setting the own vehicle position to the offset position 42a, the own vehicle position on the schematic map 40 is calculated by autonomous positioning by the vibration gyro 14a and the vehicle speed sensor 14b.

  In step S407 of FIG. 4, a vehicle position mark is displayed at the vehicle position on the schematic map. In step S408, it is determined whether the vehicle has left the service area or the parking area. Based on the current location of the vehicle detected by the current location detection device 14, when the vehicle passes a predetermined position corresponding to the exit of the service area or parking area, it may be determined that the vehicle has exited the service area or parking area. Good. Further, when a radio wave is received from a communication device installed at the exit of the service area or the parking area, it may be determined that the vehicle has entered the service area or the parking area. If the vehicle has left the service area or the parking area, an affirmative determination is made in step S408 and the process proceeds to step S409. If the vehicle has not left the service area or the parking area, a negative determination is made in step S408, and the process returns to step S404.

  In step S409, the display of the schematic map and the event information and special product information of the service area or parking area where the vehicle has entered are terminated. Then, return to the start.

The navigation device 1 according to the above embodiment has the following operational effects.
(1) When the vehicle enters the service area or the parking area, the vehicle position is displayed over the schematic map of the service area or the parking area. Therefore, it is possible to grasp the outline of the positional relationship between the facility in the service area or the parking area and the vehicle position. Thereby, in the case of a large service area or parking area or at night, it is possible to prevent the positional relationship between the facility of the service area or parking area and the vehicle position from being lost.

(2) On the schematic map based on the size information represented by the schematic map, the offset position information (information on the initial position in the vehicle position schematic map), the traveling direction of the vehicle, and the travel distance of the vehicle The position of the vehicle was calculated and displayed. Therefore, the vehicle position mark can be displayed at a position corresponding to the vehicle position even in a map of an image image without link data or node data.

(3) When the vehicle enters the service area or the parking area, the user is notified of information related to the service area or the parking area where the vehicle has entered. Therefore, the user can acquire information on the service area or the parking area where the vehicle has entered at an appropriate timing.

The navigation apparatus 1 of the above embodiment can be modified as follows.
(1) The SA / PA data may include scale map information instead of the map size information. This is because the vehicle position mark can be displayed at a position corresponding to the vehicle position of the schematic map by using information on the scale of the schematic map instead of the schematic map size information.

(2) Information such as service area and parking area event information and special product information acquired from the information center may be displayed only on the display monitor 16 or may be output only as sound from the speaker 17.

(3) You may make it include the fixed information (information, such as a name and a position) regarding a service area or a parking area, in the map data memorize | stored in DVD-ROM112. In this case, fixed information related to the service area and parking area is notified based on the map data, and dynamic information related to the service area and parking area (event information, etc.) is notified based on information acquired from the information center. May be.

(4) As long as it can detect that the vehicle has entered the service area or the parking area, the entry detection means for detecting the entry of the vehicle in the service area or the parking area is not limited to the embodiment. In addition, as long as it can be detected that the vehicle has left the service area or the parking area, the exit detection means for detecting the exit of the service area or the parking area of the vehicle is not limited to the embodiment.

  The above description is merely an example, and the present invention is not limited to the above embodiment.

The correspondence between the elements of the claims and the embodiments will be described.
The approach detection means of the present invention corresponds to the current position detection device 14, and the schematic map display means corresponds to the control circuit 11. The traveling direction detection means corresponds to the vibration gyro 14a, and the travel distance detection means corresponds to the vehicle speed sensor 14b. The notification means corresponds to the control circuit 11, the display monitor 16 and the speaker 17. In addition, the above description is an example to the last, and when interpreting invention, it is not limited to the correspondence of the component of said embodiment and the component of this invention at all.

It is a block diagram which shows the structure of the navigation apparatus of embodiment of this invention. It is a figure for demonstrating SA / PA data. It is a figure for demonstrating the display of the schematic map of the service area in one Embodiment of this invention. It is a flowchart for demonstrating the display process of the schematic map of the service area in embodiment of this invention. It is a figure for demonstrating the calculation method which calculates the own vehicle position on a schematic map.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 11 Control circuit 14 Present location detection apparatus 16 Display monitor 17 Speaker 19 Communication apparatus 30 Map around the own vehicle position 40 Outline map of service area 110 Data storage apparatus

Claims (2)

An entry detection means for detecting entry into the service area or parking area of the vehicle;
Traveling direction detection means for detecting the traveling direction of the vehicle;
Mileage detection means for detecting the mileage of the vehicle;
When the entry detection means detects entry of the vehicle into a service area or parking area, a schematic map showing a simplified facility and parking area in the service area or parking area where the vehicle has entered is displayed on a display monitor. A schematic map display control means,
The schematic map display control means includes information on the size of the schematic map , information on an initial position of the vehicle position in the schematic map, a travel direction of the vehicle detected by the travel direction detection means, and the travel A navigation device characterized in that , based on the travel distance of the vehicle detected by a distance detection means, the vehicle position on the schematic map is calculated and the vehicle position is displayed at that position . The navigation device according to claim 1 , wherein
And a notification means for notifying a user of event information or special product information of the service area or the parking area where the vehicle has entered when the entry detection means detects that the vehicle has entered the service area or the parking area. A navigation device.

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