JP5418040B2 - Traveling direction display device - Google Patents

Description

  The present invention relates to a traveling direction display device that displays a traveling direction.

  2. Description of the Related Art Navigation devices that display current location information and route information to a destination together with a map are generally known. There is also a navigation device that changes direction and displays a traveling direction at each point during movement (for example, Patent Document 1).

Japanese Patent Laid-Open No. 10-239085

  In the conventional navigation device, the direction of travel and the direction change are displayed by dot display, and it is difficult to realize the same display by the segment type display.

  An object of the present invention is to provide a traveling direction display device that can display a traveling direction and a direction change display in an easy-to-understand manner using a segment type display.

In order to achieve the above object, the invention according to claim 1
In a traveling direction display device that displays a traveling direction based on current position information, map information, and route information,
A Japanese character segment group in which four vertical segments extending in the vertical direction and three horizontal segments extending in the horizontal direction are arranged in a Japanese character shape;
Line segment extending diagonally to the upper right from the upper left vertical segment and lower left vertical segment of the day-shaped segment group, line segment extending diagonally upper left, line segment extending diagonally lower right, line segment extending diagonally lower left First to fourth diagonal segments provided along each,
An outer horizontal provided along a line segment extending from between the upper left vertical segment and the lower left vertical segment of the day-shaped segment group in a direction opposite to the central horizontal segment of the day-shaped segment group. Segments,
With
The four vertical segments, the three horizontal segments, the first to fourth diagonal segments, and the outer horizontal segment are each configured to be lit or blinking,
Illuminates and blinks two vertical segments at the upper left and lower left of the day-shaped segment group, a horizontal segment at the center of the day-shaped segment group, the first to fourth diagonal segments, and the outer horizontal segment Or turn off to display the direction of travel ,
A straight line is displayed by the lower left vertical segment and the upper left vertical segment of the day-shaped segment group,
The right turn is displayed by the lower left vertical segment and the central horizontal segment of the day-shaped segment group,
The left turn is displayed by the lower left vertical segment and the outer horizontal segment of the day-shaped segment group,
The diagonal right direction is displayed by the lower left vertical segment and the first diagonal segment of the day-shaped segment group,
The diagonal left direction is displayed by the lower left vertical segment and the second diagonal segment of the day-shaped segment group,
An acute right turn is displayed by the lower left vertical segment and the third diagonal segment of the day-shaped segment group,
It is characterized by comprising display control means for displaying an acute left turn by the lower left vertical segment and the fourth diagonal segment of the day-shaped segment group .

The invention according to claim 2 is the traveling direction display device according to claim 1 ,
The display control means includes
Further, the U-turn is displayed by a lower left vertical segment, a central horizontal segment, and a lower right vertical segment of the day-shaped segment group.

The invention according to claim 3 is the traveling direction display device according to claim 1 or 2 ,
It has a bar graph display in which multiple segments that can be lit or blinked are arranged in parallel,
The display control means includes
Along with the display of the direction change by the day-shaped segment group, the first to fourth oblique segments, and the outer horizontal segment, the length to the direction change point is displayed by the bar graph display. It is characterized by.

The invention according to claim 4 is the traveling direction display device according to claim 1 or 2 ,
Equipped with multiple 7-segment displays that can display numbers,
The display control means includes
Along with the display of turning by the day-shaped segment group, the first to fourth oblique segments, and the outer horizontal segment, the length to the turning point is displayed by the plurality of 7-segment indicators. It is characterized by doing.

Invention of Claim 5 is the advancing direction display apparatus as described in any one of Claims 1-4 ,
Positioning means for performing positioning and supplying information on the current position;
Map information storage means for storing the map information;
Route information calculating means for calculating the route information;
It is characterized by having.

  According to the present invention, there is an effect that the traveling direction and the contents of the direction change can be displayed in an easy-to-understand manner simply by adding a few display segments to the display of a general Japanese character segment group.

It is a block diagram which shows the whole navigation apparatus structure of embodiment of this invention. It is a top view which shows the specific structure of the indicator of FIG. It is a flowchart which shows the procedure of the control processing of the navigation apparatus performed by CPU. It is a top view which shows an example of the navigation display of this embodiment. It is a top view which shows the 1st-4th example of the display pattern of the advancing direction and direction change by the indicator of this embodiment. It is a top view which shows the 5th-8th example of the display pattern of the advancing direction and direction change by the indicator of this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing an overall configuration of a navigation device 1 which is an embodiment of a traveling direction display device of the present invention.

  The navigation device 1 according to this embodiment is not particularly limited, but has a wristwatch-type configuration, and navigation that guides the user by displaying the traveling direction and the direction change along the route toward the destination. It has a function.

  As shown in FIG. 1, the navigation device 1 includes a display 5 that displays navigation information, time information, and the like, an input unit 9 that has a plurality of switches and receives external commands and various information input operations, CPU 4 that performs various control processes such as processes and navigation processes, ROM (Read Only Memory) 8 that stores information such as programs and data executed by CPU 4, and RAM (Random Access Memory) that provides work memory space for CPU 4 ) 7, a satellite data storage unit 10 that stores navigation data received from GPS satellites, an antenna 2 that receives radio waves from GPS satellites, and a GPS processing unit that performs demodulation of received radio waves and data processing of received data 3, a map data storage unit 11 as map information storage means for storing map information used for navigation processing, and time measurement That a clock unit 12, and a power supply circuit 6 for supplying an operating voltage of each unit.

  The GPS processing unit 3 performs a demodulation process on a signal received via the antenna 2 based on an operation command from the CPU 4, and sends various reception data from the GPS satellite to the CPU 4. The CPU 4 can acquire position data of the current position by performing a predetermined positioning calculation based on the received data from the GPS satellite. The received navigation data is stored in the satellite data storage unit 10 and reused in the positioning calculation. The antenna 2 and the GPS processing unit 3 constitute positioning means.

  The map data storage unit 11 is composed of a flash memory, for example, and stores map information so that it can be read out by the CPU 4. Map information mainly includes information on the position of roads and intersections. From this map information, it is possible to calculate information on the route connecting the current position and the destination and information on turning points. Yes.

  In FIG. 2, the top view showing the specific structure of the indicator 5 is shown.

  The display 5 is a segment display using, for example, liquid crystal, and can be turned on, blinked, turned off, etc. for each segment formed in a predetermined shape. The display 5 includes first to fourth segment blocks 21 to 24, a colon display unit 53 that displays a time separator (for example, “:”), a unit display unit 52 that displays a unit of distance, And a bar graph display unit (bar graph display) 51.

  The first to fourth segment blocks 21 to 24 are formed in a parallel arrangement in the horizontal direction. Among these, the three second to fourth segment blocks 22 to 24 on the right side are the same as a general seven-segment display, and are blocks having seven segments in a Japanese character shape.

  Also, the first segment block 21 arranged at the leftmost is a block having 12 segments, of which 7 segments 31 to 37 are the same Japanese character shape as the other segment blocks 22 to 24. The segment group is configured. An upper horizontal segment 31, an upper left vertical segment 32, an upper right vertical segment 33, a central horizontal segment 34, a lower left vertical segment 35, a lower right vertical segment 36, and a lower horizontal segment 37.

  In addition to the seven segments 31 to 37, five segments 38 to 42 are added to the first segment block 21. Starting from the middle of the middle portion of the upper left vertical segment 32 and the lower left vertical segment 35, a first diagonal segment 38 extending obliquely from the starting point to the upper right, a second inclined segment 39 extending obliquely from the starting point to the upper left, and obliquely from the starting point A third diagonal segment 40 extending to the lower right, a fourth diagonal segment 41 extending diagonally to the lower left from the starting point, and an outer horizontal segment 42 extending to the left from the starting point.

According to these first to fourth segment blocks 21 to 24, by using the day-shaped segment group (31 to 37) of the first segment block 21 , for example, a four-digit number or the like can be obtained. It can be displayed. Moreover, by using a part of the five segments 38 to 42 to which the first segment block 21 is added and the Japanese character segment group (31 to 37), as will be described later, the traveling direction and the direction are changed. It is possible to display the contents of the.

Additional colon display section 53 includes a second segment block 22 is provided between the third segment block 23, when displaying the time in the first to fourth segment blocks 21-24, when Represents a separator between digits and minutes.

Units display unit 52, a unit of distance and segment 52a of the "miles", and segment 52b of "m", in which was used as a selectively illuminable, the fourth segment block 24 right, the lower half It is provided in the range.

  The bar graph display unit 51 is not particularly limited, but is provided with a plurality of (for example, ten) segments 51a having the same length in the left-right direction. Then, by turning on (or blinking) one or more segments 51a from one end to the middle, and turning off the other segments 51a, the length of a series of lighted segments 51a is changed, and the distance and time It is possible to display the length.

  Each segment provided in the display 5 can be turned on and off independently based on an on / off display control signal from the CPU 4. That is, the display control means of the display 5 is constituted by the CPU 4.

  According to the navigation device 1 having the above configuration, as shown below, based on the command input from the user via the input unit 9, the CPU 4 displays the time on the display 5 with the navigation device 1 as the clock mode, Alternatively, navigation processing is performed by switching the navigation device 1 to the navigation mode.

  In FIG. 3, the flowchart of the control processing of the navigation apparatus 1 performed by CPU4 is shown.

  When the navigation device 1 is activated, the CPU 4 performs a loop process including an operation input confirmation process (steps S1 and S2) via the input unit 9 and a clock process (step S3) for displaying time on the display 5. Execute. If there is no operation input for shifting to the destination input mode from the user or no operation input for shifting to the navigation mode, the clock processing in step S3 is repeatedly executed.

  On the other hand, if there is an operation input for shifting to the destination input mode from the user during the above loop processing, “YES” is determined in the determination processing in step S1, and the processing proceeds to step S4. In step S4, for example, a process for causing the user to input destination information by numerical display on the display 5 and operation input through the input unit 9 is performed. For example, the destination information is input by numerical values of latitude and longitude. When the input is completed, the process returns to the loop process of steps S1 to S3 again.

  If there is an operation input for shifting to the navigation mode from the user during the above loop processing, “YES” is determined in the determination processing in step S2, and the processing proceeds to step S5. In step S5, the CPU 4 causes the GPS processing unit 3 to receive data from a GPS satellite, and inputs the received data to perform positioning calculation. Thereby, information on the current position of the navigation device 1 is obtained.

  Next, in step S6, the CPU 4 reads map information in a range connecting the current position and the destination from the map data storage unit 11, sets a route from the current position to the destination, and holds it as route information. The process of step S6 constitutes route information calculation means. Further, in the subsequent step S7, the distance to the next turning point and the direction of turning are obtained from the route information and road and intersection information of the map information.

  After obtaining the information up to the turning point, the CPU 4 next outputs a display control signal to the display 5 to display and output navigation information in step S8.

4 shows a plan view showing an example of the navigation information displayed on the display device 5, 5 and 6 show the direction indicated by the first segment block 21. In FIGS. 4 to 6, the black display of the segment indicates a lighting state, the white display indicates a light-off state, and the hatching display indicates a blinking state.

  As shown in FIG. 4, the navigation information in the present embodiment includes direction information indicating the direction of travel displayed by the first segment block 21 or a change direction at the next direction change point, and second to fourth segment blocks. 22-24 and the character information representing the distance to the next turning point displayed by the unit display unit 52 and the bar graph information representing the distance to the next turning point displayed by the bar graph display unit 51. Become. In the example of FIG. 4, there is a turning point about 30 m ahead, and there is navigation information for turning right there. Further, the colon display portion 53 is turned off during the display of the navigation information.

  As shown in FIGS. 5 and 6, there are eight patterns of direction information display patterns displayed by the first segment block 21. That is, a pattern representing straight travel by two vertical segments 32 and 35 (FIG. 5A), a pattern representing a right turn by vertical segment 35 and horizontal segment 34 (FIG. 5B), vertical segment 35 and outer horizontal segment 42. , A pattern indicating a left turn (FIG. 5C), a pattern indicating a diagonal right direction by the vertical segment 35 and the first diagonal segment 38 (FIG. 5D), a diagonal left direction by the vertical segment 35 and the second diagonal segment 39 (FIG. 6A), a pattern representing an acute right turn by the vertical segment 35 and the third oblique segment 40 (FIG. 6B), and an acute left turn by the vertical segment 35 and the fourth oblique segment 41. Pattern (Fig. 6 (c)), U-turn by vertical segments 35, 36 and horizontal segments 34 Wath pattern is (Fig 6 (d)).

  In these direction information display patterns, the current traveling direction is represented by blinking of the vertical segment 35, and the subsequent traveling direction is represented by lighting of other segments. The lighting and blinking may be reversed, or both may be turned on or blinking.

  Among the display patterns of the direction information, it is possible to display, for example, that a straight line continues for a while or a straight line at the next intersection by the straight line pattern of FIG. In addition, it is possible to indicate in which direction the turn is made at the next turning point by the pattern of left turn or right turn in FIGS. 5B and 5C and FIGS. 6B and 6C. (D) and the diagonally right and diagonal left patterns in Fig. 6 (a) can indicate that the vehicle is traveling on a gently curved road or that it is traveling in a diagonally right or diagonal direction at an intersection. It has become.

  When the navigation information is displayed and output in step S8 of FIG. 3, it is then determined in step S9 whether the current position substantially matches the destination. If not, the process returns to step S5. The processes in steps S5 to S9 are repeated.

  That is, while the user is traveling on the route toward the destination, the positioning processing using the GPS processing unit 3 and the route confirmation based on the map information and the display of the navigation information described above are performed by the loop processing in steps S5 to S9. The output is repeated. By repeating these steps S5 to S9, for example, every time the user approaches the turning point, the number of displays indicating the distance of the navigation information in FIG. 4 is reduced, or the bar graph to be lit is shortened. Is communicated to the user. And if it becomes a direction change point, the display to the distance to the next direction change point and the advancing direction will be updated by turning in the direction displayed by the 1st segment block 21. And by continuing the movement according to such a navigation display, the user can reach the destination.

  When the destination is reached, “YES” is determined in the determination process in step S9, and the process returns to step S1 again.

  As described above, according to the navigation device 1 of this embodiment, in the first segment block 21, a day composed of four vertical segments 32, 33, 35, and 36 and three horizontal segments 31, 34, and 37. By adding the first to fourth oblique segments 38 to 41 and the outer horizontal segment 42 to the character-shaped segment group, the display of the traveling direction and the change direction can be easily and easily understood.

  In addition, the current traveling direction is indicated by blinking the vertical segment 35 of the day-shaped segment group. In addition to this, the straight segment is turned on by lighting the vertical segment 32, and the right turn is turned on by turning on the horizontal segment 34. By turning on the outer horizontal segment 42, turning left, and turning on any one of the first to fourth diagonal segments 38-41, it is easy for the user to understand the left and right diagonal turning directions and sharp left and right turns. Can be displayed.

  In addition, the U-turn can be displayed in an easy-to-understand manner for the user by blinking the vertical segment 35 of the day-shaped segment group and lighting the two segments of the horizontal segment 34 and the vertical segment 36.

Further, by providing the bar graph display unit 51 composed by parallel multiple lighting or segments which can blink, with the display direction conversion by the first segment block 21, the change in length of up to turnaround point It can be displayed while changing every moment.

  Further, by displaying the distance numerically in the second to fourth segment blocks 22 to 24, the length to the turning point can be specifically communicated to the user.

  In addition, according to the navigation device 1 of the present embodiment, the navigation device 1 includes the positioning means including the antenna 2 and the GPS processing unit 3 and the map data storage unit 11 that stores the map information. It is possible to guide the user to the destination by measuring the position and calculating the route information and outputting the direction to travel based on the route information to the display 5.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, in the above embodiment, a segment display using liquid crystal is exemplified as the display 5, but various segment displays such as a segment display using a light emitting diode can be applied. In the above-described embodiment, the CPU 4 directly performs display control of the display device 5. However, a display control circuit dedicated to display control of the display device 5 may be separately provided.

  Further, in the above embodiment, a configuration for performing positioning using GPS as a positioning means has been exemplified. However, for example, a configuration for performing positioning by communication with a base station of a mobile phone, RFID (Radio Frequency Identification), etc. Various other configurations can be applied, such as a configuration in which the current position is determined by receiving or inputting position information from the outside.

  Further, only one of the numerical display and the bar graph display for displaying the distance to the direction change point may be performed, or both may be omitted. When both are omitted, it is possible to guide the user to change the direction by switching the direction display pattern from the straight traveling pattern to any one pattern just before the direction changing point. In addition, the details shown in the embodiments can be appropriately changed without departing from the spirit of the invention.

1 Wrist Watch 2 Antenna 3 GPS Processing Unit 4 CPU
5 Display 10 Satellite Data Storage Unit 11 Map Data Storage Unit 12 Timekeeping Unit 21 First Segment Block 22-24 Second to Fourth Segment Block 32, 33, 35, 36 Vertical Segment 31, 34, 37 Horizontal Segment 38 First diagonal segment 39 Second diagonal segment 40 Third diagonal segment 41 Fourth diagonal segment 42 Outside horizontal segment 51 Bar graph display section 52 Unit display section

Claims (5)

In a traveling direction display device that displays a traveling direction based on current position information, map information, and route information,
A Japanese character segment group in which four vertical segments extending in the vertical direction and three horizontal segments extending in the horizontal direction are arranged in a Japanese character shape;
Line segment extending diagonally to the upper right from the upper left vertical segment and lower left vertical segment of the day-shaped segment group, line segment extending diagonally upper left, line segment extending diagonally lower right, line segment extending diagonally lower left First to fourth diagonal segments provided along each,
An outer horizontal provided along a line segment extending from between the upper left vertical segment and the lower left vertical segment of the day-shaped segment group in a direction opposite to the central horizontal segment of the day-shaped segment group. Segments,
With
The four vertical segments, the three horizontal segments, the first to fourth diagonal segments, and the outer horizontal segment are each configured to be lit or blinking,
Illuminates and blinks two vertical segments at the upper left and lower left of the day-shaped segment group, a horizontal segment at the center of the day-shaped segment group, the first to fourth diagonal segments, and the outer horizontal segment Or turn off to display the direction of travel ,
A straight line is displayed by the lower left vertical segment and the upper left vertical segment of the day-shaped segment group,
The right turn is displayed by the lower left vertical segment and the central horizontal segment of the day-shaped segment group,
The left turn is displayed by the lower left vertical segment and the outer horizontal segment of the day-shaped segment group,
The diagonal right direction is displayed by the lower left vertical segment and the first diagonal segment of the day-shaped segment group,
The diagonal left direction is displayed by the lower left vertical segment and the second diagonal segment of the day-shaped segment group,
An acute right turn is displayed by the lower left vertical segment and the third diagonal segment of the day-shaped segment group,
A traveling direction display device comprising display control means for displaying an acute left turn by the lower left vertical segment and the fourth diagonal segment of the day-shaped segment group . The display control means includes
Furthermore, shaped segment group in the lower left of the vertical segment of the day, the center of the horizontal segment, and the vertical segment of the right lower traveling direction display device according to claim 1, wherein the displaying the U-turn. It has a bar graph display in which multiple segments that can be lit or blinked are arranged in parallel,
The display control means includes
Along with the display of the direction change by the day-shaped segment group, the first to fourth oblique segments, and the outer horizontal segment, the length to the direction change point is displayed by the bar graph display. The traveling direction display device according to claim 1 or 2 , wherein Equipped with multiple 7-segment displays that can display numbers,
The display control means includes
Along with the display of turning by the day-shaped segment group, the first to fourth oblique segments, and the outer horizontal segment, the length to the turning point is displayed by the plurality of 7-segment indicators. The traveling direction display device according to claim 1 or 2 , wherein Positioning means for performing positioning and supplying information on the current position;
Map information storage means for storing the map information;
Route information calculating means for calculating the route information;
The traveling direction display device according to any one of claims 1 to 4 , further comprising:

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