JP2013097411A - Navigation device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously perform scroll processing and scale change processing on a map image by simple operations.SOLUTION: A navigation device for a vehicle, which has a scroll function and a scale change function for a displayed map image, comprises: a map information storage unit 14 which stores map information generating the map image; an operation and display unit 17 which has a touch panel 15 capable of simultaneously detecting a plurality of operations and a display 16 for displaying the map image; and a control unit 11 which performs scroll processing on the map image displayed on the display on the basis of a first operation signal by a first operation detected by the touch panel 15, and performs scale change processing on the map image displayed on the display on the basis of the first operation signal by the first operation and a second operation signal by a second operation detected by the touch panel.

Description

  The present invention relates to a vehicular navigation apparatus, and more particularly to a vehicular navigation apparatus having a scroll function and a scale changing function of a displayed map image.

  2. Description of the Related Art Vehicle navigation devices that display the current position of a vehicle together with a map image on a display unit are widely used as devices that support vehicle travel. Since such a vehicle navigation apparatus provides information around the current position in response to a user request, a scroll function for scrolling a displayed map image in a desired direction, or a scale of a displayed map image Has a scale change function to change.

  In this case, in the vehicle navigation apparatus, higher operability is required, for example, the driver can operate with one hand. Therefore, what employ | adopted the touchscreen type display part which can perform the scroll process of a map image and a scale change process by operating a display part directly is used abundantly.

  For example, in the following Patent Document 1 (Japanese Patent Laid-Open No. 2011-141340), when the user touches the touch panel, a scroll mark is displayed at the touch point, and the scroll process is performed so that the scroll mark moves to the center of the display unit. In addition, a map display device is disclosed in which when the user touches the touch panel twice (double clicks), the map image is enlarged around that point.

  In addition, in the following Patent Document 2 (Japanese Patent Laid-Open No. 7-280577) in which the display unit and the operation unit are independently configured instead of the touch panel type, when the user presses the scroll button of the operation unit, the display unit A navigation device is disclosed in which a scroll process of a displayed map image is performed, and a map image reduction process is performed when the scroll button is pressed for 2 seconds.

JP 2011-141340 A ([Claim 1], [0016]) Japanese Patent Laid-Open No. 7-280577 ([Summary], [FIG. 5])

  However, in the prior art disclosed in Patent Document 1 above, the scroll instruction operation of touching the touch panel and the enlargement instruction operation of double-clicking the touch panel are independent operations. It is not possible to instruct a process of enlarging while scrolling.

  Further, in the prior art disclosed in Patent Document 2 above, it is possible to perform scroll processing and reduction processing of a map image using a single scroll button. Since time is required, there is a drawback that the scale of the map image cannot be changed quickly, and the scale of the map image cannot be changed at any timing when the user desires to change the scale.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle navigation apparatus capable of simultaneously performing a map image scroll process and a scale change process with a simple operation. To do.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
In a vehicle navigation apparatus having a scroll function and a scale changing function of a displayed map image, a map information storage unit that stores map information for generating the map image, a touch panel that can simultaneously detect a plurality of operations, and the map Based on an operation display unit having a display for displaying an image and a first operation signal from the first operation detected by the touch panel, the map image displayed on the display is scrolled, and the first operation is performed. And a control unit that performs a scale change process of the map image displayed on the display based on a first operation signal and a second operation signal by a second operation detected by the touch panel. .

  The invention according to claim 2 of the present application is characterized in that, in the vehicle navigation apparatus according to claim 1, the control unit performs an enlargement / reduction process of the map image according to the number of times of the second operation.

  The invention according to claim 3 of the present application is the vehicle navigation apparatus according to claim 1, wherein the control unit is a distance between the detection position of the first operation and the detection position of the second operation by the touch panel. The map image is enlarged or reduced according to the above.

  The invention according to claim 4 of the present application is the vehicle navigation apparatus according to claim 1, wherein the control unit is a distance between the detection position of the first operation and the detection position of the second operation by the touch panel. The map image is enlarged / reduced in accordance with the change of.

  In the invention concerning Claim 1, in the navigation apparatus for vehicles provided with the scroll function of the map image displayed, and a scale change function, the map information storage part which memorize | stores the map information which produces | generates the said map image, and several operation | movement Scrolling the map image displayed on the display based on an operation display unit having a touch panel that can be detected at the same time, a display for displaying the map image, and a first operation signal generated by the first operation detected by the touch panel. A control unit that performs processing to change the scale of the map image displayed on the display based on the first operation signal by the first operation and the second operation signal by the second operation detected by the touch panel. And comprising.

  With this configuration, the map image can be scrolled by the first operation on the touch panel, and the scale of the map image can be changed by the second operation on the touch panel at an arbitrary timing. Since the map image scroll process and the scale change process can be performed simultaneously, a map image having a desired display range can be efficiently provided to the user.

  In the invention according to claim 2, in the vehicular navigation device according to claim 1, the scale of the displayed map image can be changed by the number of times of the second operation.

  In the invention which concerns on Claim 3, in the vehicle navigation apparatus concerning Claim 1, the scale of the displayed map image is based on the distance between the detection position of the first operation and the detection position of the second operation on the touch panel. Can be changed.

  According to a fourth aspect of the present invention, in the vehicular navigation device according to the first aspect, the scale of the displayed map image is the distance between the detection position of the first operation and the detection position of the second operation on the touch panel. Can be changed by change.

1 is a configuration block diagram of a vehicle navigation device according to an embodiment of the present invention. It is an operation | movement flowchart of the navigation apparatus for vehicles shown in FIG. It is explanatory drawing of the state which the user touched the 1st finger | toe on the operation display part in the Example of this invention. It is explanatory drawing of the state which moved the 1st finger | toe from the state of FIG. 3, and performed the scroll process of the map image. It is explanatory drawing of the state which made the 2nd finger touch the operation display part from the state of FIG. 4, and reduced the map image. It is explanatory drawing of the state which made the 2nd finger touch the operation display part several times from the state of FIG. 4, and performed the expansion process of the map image.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. However, the embodiment described below exemplifies a vehicle navigation device for embodying the technical idea of the present invention, and is not intended to specify the present invention as this vehicle navigation device. In addition, the present invention can be equally applied to the vehicle navigation apparatus of other embodiments included in the scope of claims.

  FIG. 1 is a block diagram showing a configuration of a vehicle navigation apparatus 10 according to an embodiment of the present invention.

  The vehicle navigation device 10 includes a control unit 11, a current position detection unit 12, a route search unit 13, a map information storage unit 14, an operation display unit 17 having a touch panel 15 and a display 16, and a speaker 18.

  The control unit 11 includes a CPU 19, a RAM 20, and a ROM 21. The CPU 19 executes a control program stored in the RAM 20 and / or the ROM 21, thereby controlling and supervising operations of each unit of the vehicle navigation device 10 described below. .

  The current position detector 12 receives radio waves (satellite signals) including time information from a plurality of GPS satellites orbiting the earth at predetermined time intervals, and calculates the current position of the vehicle based on the received satellite signals. To do. The current position detection unit 12 may be configured by an autonomous navigation means that calculates the current position of the vehicle based on acceleration or angular velocity acquired from an acceleration sensor, a gyro sensor, or the like, or a radio wave transmitted from a base station. it can.

  The route search unit 13 includes the map information stored in the map information storage unit 14, the current position of the vehicle calculated using the current position detection unit 12 or the departure point set using the operation display unit 17, the destination Based on the above, the optimum travel route from the current position or the starting point to the destination is searched. The route search unit 13 searches for a link from the node of the road corresponding to the current position or the starting point to the node corresponding to the destination by a method such as the Dijkstra method, and calculates the link length (link cost) and required time. The route that accumulates and has the shortest total link length (travel distance) or total required time is searched for as a travel route.

  The map information storage unit 14 stores map information including road data, building data, background data, and text data for searching for a moving route of a vehicle. The map information may be acquired from an external map information providing server (not shown) and stored in the map information storage unit 14 as the latest map information.

  The road data is composed of node data in which roads are nodes such as inflection points and branch points, and link data in which routes connecting the respective nodes are links. The node data includes node attributes such as node numbers, node position coordinates (latitude / longitude), intersection information and information indicating intersection names, and the number of connection links and connection link numbers.

  Link data includes node numbers that are the start and end points of links, road types for distinguishing expressways, ordinary roads, streets, etc., distances and / or required times between nodes, and road names such as national highways. It is comprised including. In addition to the above, data such as bridges, tunnels, railroad crossings, toll booths, parking lots, etc. are added to the link data. The building data includes position coordinates (latitude / longitude) composed of at least three points of the building, types of buildings such as buildings and private houses, and display color data. The background data includes data of position coordinates (latitude / longitude) including at least three points serving as background image information such as sea areas, lakes, river shapes, and forests, and display colors. The text data includes characters (names) such as place names and river names, and data of their coordinates (latitude / longitude).

  The operation display unit 17 is configured by arranging a touch panel 15 that detects an operation instruction by a user on a display 16 that displays various menu screens, a current position and map image of a vehicle, a searched movement route, and the like. The user can use the touch panel 15 of the operation display unit 17 to display various information such as a starting point and a destination for route search, changing the scale of the displayed map image, scrolling, and registering a desired landmark. It is possible to input a desired instruction to the vehicle navigation device 10.

  The speaker 18 outputs necessary voice guidance to the user according to the map image displayed on the operation display unit 17 and the route searched by the route search unit 13.

  The vehicle navigation device 10 of the present embodiment is basically configured as described above. Next, the operation of the vehicle navigation apparatus 10 will be described with reference to the flowchart shown in FIG.

  When the vehicle navigation apparatus 10 is turned on, the current position detection unit 12 receives a satellite signal including time information from a GPS satellite under the control of the control unit 11 and calculates the current position of the vehicle. Next, as shown in FIG. 3, the control unit 11 displays, on the display 16 of the operation display unit 17, a map image 23 having a predetermined scale centered on the current position together with the mark 22 indicating the calculated current position of the vehicle. It is displayed (step S101). The user can check the current position and the route to the destination based on the displayed map image 23.

  The route to the destination can be searched using the route search unit 13. That is, when the user operates the touch panel 15 of the operation display unit 17 to input a departure place and a destination and instruct a route search, the route search unit 13 is based on the map information stored in the map information storage unit 14. Search for the best route from your starting point to your destination. The searched route is displayed on the map image 23. When the user drives the vehicle according to the displayed route, the current position detection unit 12 sequentially detects the current position of the vehicle, and the control unit 11 detects the vehicle together with the route searched for on the display 16 of the operation display unit 17. The current position of is displayed. In this way, the user can move to the destination according to the displayed route.

  Here, the range of the map image 23 that can be displayed on the display 16 at a time is restricted by the display 16. Usually, the display 16 displays a map image 23 having a predetermined scale centered on the current position of the vehicle. The user may want to display (scroll) a map image outside this display range, or display a map image having a desired scale (change in scale).

  Therefore, when the user brings one finger (first operation finger 24) into contact with the touch panel 15 of the operation display unit 17 (first operation), the touch panel 15 detects the contact of the first operation finger 24 (step S102). , YES), the first operation signal is output to the control unit 11.

  Next, when the user moves the first operation finger 24 in the direction of the arrow shown in FIG. 4 with the first operation finger 24 in contact with the touch panel 15, the control unit 11 performs the movement operation of the first operation finger 24 and The moving direction is detected, and it is determined that the user has instructed to scroll the map image 23 (step S103, YES). And the control part 11 reads the map information corresponding to the moving direction and moving amount | distance of the 1st operation finger 24 from the map information storage part 14, and performs the scroll process for displaying the desired map image 25 on the display 16 ( Step S104).

  In addition, the scroll process of the map image 23 can also be performed only by making it contact, without moving the 1st operation finger 24 along the touch panel 15. FIG. That is, when receiving the first operation signal from the touch panel 15 that detects the contact of the first operation finger 24, the control unit 11 and the current position (mark) of the vehicle displayed on the display 16 and the contact position of the first operation finger 24. The scroll direction of the map image 23 can be calculated based on the positional relationship with the position indicated by 22), and the scroll process can be performed. For example, if the contact position of the first operation finger 24 is on the left side of the current position of the vehicle, the map image 23 is scrolled to the left side, and if the contact position of the first operation finger 24 is on the right side of the current position of the vehicle, The image 23 can be scrolled to the right. Similarly, if the contact position of the first operating finger 24 is above the current position of the vehicle, the map image 23 is scrolled upward, and if the contact position of the first operating finger 24 is below the current position of the vehicle. The map image 23 can be scrolled down.

  Next, when the user brings the second finger (second operation finger 26) into contact with the touch panel 15 of the operation display unit 17 with the first operation finger 24 in contact with the touch panel 15, as shown in FIG. (Second operation) The touch panel 15 detects the contact of the second operation finger 26 (step S105, YES), and outputs a second operation signal to the control unit 11.

  When the second operation signal based on the contact of the second operation finger 26 is supplied from the touch panel 15 in a state where the first operation signal based on the contact of the first operation finger 24 is supplied, the control unit 11 displays the display 16 on the display 16. It is determined whether the displayed map image 25 is to be reduced or enlarged (whether the scale is changed in the direction of reducing the displayed map or the scale is changed in the direction of enlargement). When the second operation finger 26 contacts the touch panel 15 once (step S106, NO), the control unit 11 determines that the instruction is to reduce the map image 25 and display a wide area map. Therefore, the control unit 11 reads out the map information related to the wide area map whose scale has been changed from the map information storage unit 14, or performs the calculation processing (compression processing) of the scale specified based on the map information, as shown in FIG. As shown, the reduced map image 27 is displayed on the display 16 (step S107).

  In addition, the control unit 11 generates the second operation by causing the second operation finger 26 to contact the touch panel 15 a plurality of times at a predetermined interval in a state where the first operation signal based on the contact of the first operation finger 24 is supplied. When the operation signal is supplied from the touch panel 15, it is determined that the instruction is to enlarge the map image 25 and display a detailed map. The control unit 11 reads out the map information related to the detailed map whose scale has been changed from the map information storage unit 14, or performs the calculation processing (enlargement processing) of the scale specified based on the map information, as shown in FIG. Then, the enlarged map image 28 is displayed on the display 16 (step S108).

  The above processing is appropriately performed until the power of the vehicle navigation device 10 is turned off (step S109).

  Thus, in the above-described embodiment, the first operation finger 24 is brought into contact with the touch panel 15 to move the first operation finger 24 in a desired direction, or the position between the first operation finger 24 and the current position of the vehicle. Based on the relationship, the map image 23 (FIG. 3) is scrolled in a desired movement direction by bringing the first operating finger 24 into contact with a position on the touch panel 15 indicating the direction in which the user wants to scroll, and the map in the range that the user wants to know. The image 25 (FIG. 4) can be displayed on the display 16.

  Further, by bringing the second operation finger 26 into contact with the touch panel 15 once with the first operation finger 24 in contact with the touch panel 15, the map image 25 (FIG. 4) is reduced, and the range that the user wants to know is displayed. The wide-area map image 27 (FIG. 5) including it can be displayed on the display 16.

  Further, by bringing the second operation finger 26 into contact with the touch panel 15 a plurality of times at predetermined intervals while the first operation finger 24 is in contact with the touch panel 15, the map image 25 (FIG. 4) is enlarged and the user knows. A detailed map image 28 (FIG. 6) including the desired point can be displayed on the display 16. When the time interval when the second operation finger 26 is brought into contact with the touch panel 15 a plurality of times is equal to or longer than a predetermined time, the control unit 11 determines that the instruction is to reduce the map image 25 and reduces the map image 25. Process.

  In this way, the user can simultaneously enlarge or reduce the map image 25 while scrolling the map image 25 using two fingers (the first operation finger 24 and the second operation finger 26), and thus a desired display range. An image can be displayed on the display 16 very efficiently.

  In addition, this invention is not limited to the Example mentioned above, It can change in the range which does not deviate from the summary of this invention.

  For example, when the map image 25 is enlarged, the scale of the map image 25 is determined according to the distance between the detection position of the touch panel 15 that detects the first operation finger 24 and the detection position of the touch panel 15 that detects the second operation finger 26. May be determined. In this case, the user can intuitively specify the scale based on the interval between the contact positions of the first operation finger 24 and the second operation finger 26.

  Further, in a state where the first operation finger 24 and the second operation finger 26 are in contact with the touch panel 15, the second operation finger 26 is moved along the touch panel 15 with respect to the first operation finger 24, and the first operation finger 24 is moved. The scale of the map image 25 can be changed by changing the distance between the first operation finger 26 and the second operation finger 26.

  Furthermore, in the embodiment described above, the map image 25 is reduced when the second operating finger 26 is brought into contact with the touch panel 15 only once after the first operating finger 24, and a plurality of second operating fingers 26 are applied to the touch panel 15. Although the map image 25 is enlarged when it is contacted once, the reduction and enlargement may be performed in the opposite manner.

DESCRIPTION OF SYMBOLS 10 ... Vehicle navigation apparatus 11 ... Control part 12 ... Current position detection part 13 ... Route search part 14 ... Map information storage part 15 ... Touch panel 16 ... Display 17 ... Operation display section 18 ... Speaker 22 ... Marks 23, 25, 27, 28 ... Map image 24 ... First operation finger 26 ... Second operation finger

Claims (4)

In a vehicle navigation device having a scroll function and a scale changing function of a displayed map image,
A map information storage unit for storing map information for generating the map image;
An operation display unit having a touch panel capable of simultaneously detecting a plurality of operations and a display for displaying the map image;
Based on the first operation signal by the first operation detected by the touch panel, the map image displayed on the display is scrolled, and the first operation signal by the first operation and the first operation signal detected by the touch panel are detected. A control unit that performs a scale changing process of the map image displayed on the display based on a second operation signal by two operations;
A vehicle navigation device comprising:   The vehicle navigation apparatus according to claim 1, wherein the control unit performs an enlargement / reduction process of the map image according to the number of times of the second operation.   The said control part performs the expansion / contraction process of the said map image according to the distance between the detection position of the said 1st operation by the said touch panel, and the detection position of the said 2nd operation. Vehicle navigation device.   The said control part performs the expansion / contraction process of the said map image according to the change of the distance between the detection position of the said 1st operation by the said touch panel, and the detection position of the said 2nd operation. The vehicle navigation apparatus described.

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