JPS6266399U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is a block diagram showing the hardware configuration of the device of this embodiment, Fig. 3 is a perspective view showing the state in which a transparent operation panel is attached to the VDT, and Fig. 4 is A memory map showing the contents of the intersection information area provided in the external memory, Fig. 5 shows the area name information storage area, reduced map information storage area, enlarged map information storage area, and point name information storage area provided in the external memory. FIG. 6 is a memory map showing the contents of a table in which each region name and the number of the reduced map are stored in association with each other, and FIG. Figure 8 is a memory map showing the contents of a table that associates and stores each Zone on the enlarged map with the center coordinates of the corresponding zone, and Figure 9 shows the contents of a table that stores each zone name and the corresponding point coordinates. 10 is a general flowchart of the route guidance device, FIG. 11 is a flowchart showing details of the process of specifying the departure point and destination, and FIG. 12 is the VDT. An explanatory diagram showing a state in which area names are displayed all at once on the screen, Fig. 13 is an explanatory diagram showing a state in which a reduced map is displayed on the VDT screen, and Fig. 14 shows a state in which an enlarged map is displayed on the VDT screen. Fig. 15 is an explanatory drawing showing the point name list displayed on the VDT screen, Fig. 16 is a flowchart showing the process of selecting a starting intersection and destination intersection, and Fig. 17 is an algorithm for selecting a starting intersection. 18 is an explanatory diagram showing the algorithm for selecting a destination intersection, FIG. 19 is a flowchart showing details of the shortest route search process, and FIG. 20 is an RA
21 is a memory map showing details of the route storage area provided in RAM; FIG. 22 is a flowchart showing details of the guidance display process (); FIG. FIG. 23 is a flowchart showing the details of the current location calculation process executed by interruption, and FIG. 24 is a flowchart showing details of the departure intersection direction display process.
Figure 25 shows the V on the way from the departure point to the departure intersection.
An explanatory diagram showing an example of display on the DT screen, FIG. 26 is a flowchart showing details of departure route direction display processing,
FIG. 27 is an explanatory diagram showing an example of the display on the VDT screen when approaching the departure intersection, FIG. 28 is a flowchart showing details of the guidance display process (), and FIG.
The figure is a flowchart showing the details of the route guidance preparation process to the next intersection to be passed, and Figure 30 is an example of a road map showing the relationship between test circle A, test circle B, error test oval, etc. when heading straight to the intersection. Figure shown, 3rd
Figure 1 shows the test circle B heading towards the turning intersection.
A diagram showing an example of a road map showing the relationship between error test ellipses, Fig. 32 is an explanatory diagram showing test areas when entering a bending multi-level intersection, and Fig. 33 is an explanatory diagram showing each test area when exiting a bending multi-level intersection. An explanatory diagram showing the state, FIG. 34 is a flowchart showing details of the route guidance display process and current position correction process when passing an intersection straight through, and FIG. 35 is a VD when approaching an intersection going straight.
An explanatory diagram showing a display example of the T screen, Fig. 36 is a flowchart showing details of the course guidance display processing and current position correction processing when passing through a bend at a normal intersection, and Fig. 37 is a VDT screen when approaching a bend plane intersection. 38 is an explanatory diagram showing an example of the display of the VDT screen when approaching a bending plane intersection,
FIGS. 39 and 40 are flowcharts showing details of the route guidance display process and current position correction process when passing through a turning intersection, and FIG. 41 is an explanation showing an example of the VDT screen display when approaching a three-dimensional turning intersection. figure,
Fig. 42 is a flowchart showing the details of the guidance display process (), Fig. 43 is an explanatory diagram showing an example of the display of the VDT screen when approaching the destination intersection, and Fig. 44 is an example of the display of the VDT screen when approaching the destination. FIG. a... Basic information storage means, b... Route end intersection selection means, c... Shortest route search means.

Claims (1)

[Scope of Claim for Utility Model Registration] Basic information storage means that stores the location coordinates of each intersection and the route to the adjacent intersection, and the location of each intersection when the starting point (or destination) is given. Referring to the coordinates, a certain area centered on the departure point (or destination) and a straight line connecting the departure point (or destination) and the destination (starting point) and the departure point (or destination). A route edge that selects the intersection closest to the departure point (or destination) as the departure intersection (or destination intersection) among all intersections that exist in the area on the destination (or departure point) side with a straight line passing through as the boundary. an intersection selection means, using the selected starting intersection (or destination intersection) as at least one end of the route, and referring to the section distance between each adjacent intersection to find the shortest path from the starting intersection to the destination intersection under certain conditions; A route guidance device for a vehicle, comprising: a route search means for searching a route;