JPS6057072B2 - Map search means for course guidance system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a course guidance system capable of recording driving programs, and in particular, a map display section that projects a map to be superimposed on a display screen that plots a driving trajectory, and also provides input through a keyboard. Equipped with a map film that has a magnetic recording section that can read and write information,
Record the map number according to your driving schedule,
Regarding a course guidance system configured to sequentially project desired maps in response to driving, its purpose is to store overlap zones in advance in a storage device in order to detect overlaps in driving trajectories on a display screen. Another object of the present invention is to provide a map search means for a course guidance system in which the map is updated when traveling trajectories overlap during traveling.

Prior to filing the present application, the applicants of the present application developed an on-vehicle course guidance system as shown in FIG.

The in-vehicle course guidance system is placed, for example, in front of the driver's seat, and as shown in FIG. The driving trajectory 2 obtained based on the output from the display screen is plotted on the display screen, while a map sheet 3 drawn on, for example, a transparent film is configured to be attachable to and detachable from the front of the display screen. The attached map sheet 3 is fixed by the fixing means 1a so that the traveling trajectory 2 is extended along a desired road on the map. The above-mentioned in-vehicle course guidance system has one major feature and advantage in that it superimposes the display screen and the map and extends the driving trajectory along the road on the map. This is a promising direction for vehicle-mounted course guidance systems.

However, in the case of the apparatus shown in FIG. 1, the map mounted to correspond to the display screen is present in the form of a map sheet, and is configured to be manually mounted and manually removed. For this reason, for example, while driving with one map sheet 3 attached, the driving trajectory progresses to the edge of the map, and then the new map sheet 3 moves forward.
If it becomes necessary to replace a new map, the replacement must be done manually. In addition, when performing this replacement, it is necessary to select a new map sheet to be replaced next from a large number of map sheets one by one, which is relatively troublesome5. The present invention is aimed at determining the above point, and uses a map display section to
The map film is configured so that a map number can be specified and projected on the display screen, and a map number that matches the user's driving schedule can be programmed in advance via the keyboard. To solve the above-mentioned complexity by creating a configuration in which the map is automatically updated when the travel trajectories overlap! It is an object.

This will be explained below with reference to the drawings. FIG. 2 is a flowchart explaining one embodiment of the programming process performed by the present invention, and FIGS. 3 to 5 show the national map ≦ (block division diagram) and regional index diagram shown in FIG. 2. An explanatory diagram of an example of a necessary map, FIG. 6 is an example configuration corresponding to one map in a map film according to the present invention, FIG. 7 is an example configuration of a map film according to the present invention, and FIG.
Figure 9 is a block diagram of an embodiment of the present invention, Figure 9 is an example of an embodiment of program information recorded in a magnetic recording section provided in a map film according to the present invention, and Figure 10 is an example of an overlap zone according to the present invention. An example showing a storage method of
FIG. 1 shows an embodiment of the configuration of a front panel in an on-vehicle course guidance system according to the present invention.

Further, FIGS. 12 to 14 each show an embodiment in which a map is projected onto a display or screen surface, and FIGS. 15 and 16 each show an embodiment in which a course guidance system is installed inside the vehicle. It shows. By using the in-vehicle course guidance system of the present invention, it is possible to perform driving programming in which map numbers according to the own driving course are recorded in advance via the keyboard, and maps corresponding to each number can be performed. When the map is projected on the display screen, notification information to be notified to the driver corresponding to the map can be recorded via the keyboard. Furthermore, by creating an overlap zone on the display screen in advance, the map can be automatically updated when the current position display reaches the overlap zone. Figure 2 shows the manner in which the above recording or programming is carried out. When the driving course is determined, (1) the map display section is activated and a national map (block diagram) is first displayed on the display screen or screen. Project via a map projection mechanism.

(2) As a result, a nationwide map (block divided map) as shown in FIG. 3 is projected, and if the driver is planning to drive in the Tohoku region, for example, the map number RlJ is keyed in.

(3) As a result, the map display section operates, and a regional index map corresponding to the Tohoku region as shown in FIG. 4 is projected.

(4) For example, if you plan to drive in an area corresponding to map number R3OJ, key-input map number R3OJ. A map as shown in FIG. 5 is associated with the map number R3OJ. (5) The map number R3O
J is recorded, for example, in a magnetic recording section, which will be described later with reference to FIG.

(6) When the map corresponding to the map number R3O is projected later during actual driving, if it is necessary to notify the driver in response to the map, press the function ● key on the keyboard. For example, report information such as parking area rest, gasoline refueling, and meal instructions can be recorded through the system.

(7) Below, as long as it is within the range of the regional index map of the Tohoku region, enter and record the map number R29, which needs to be projected after the map number R3OJ, and press the function key as necessary. Enter the key and record it.

It goes without saying that it is also possible to project a regional index map or a national map (block division map) as required. The maps shown in FIGS. 3, 4, and 5 are stored one frame at a time on a map film 4 as shown in FIG. 7, for example, in the form of a reel.

At the top of the map film 4, as shown in FIG.
A magnetic recording section 5 is provided, in which each record described with reference to FIG. 2 is stored. In addition, as shown in an enlarged form in FIG. 6, a magnetic tape recording section 7 is provided corresponding to each one-frame map 6, for example, corresponding to the map with number R3OJ, and a magnetic tape recording section 7 is provided on the magnetic tape recording section 7. Map number R3OJ
Information indicating the map number R3OJ is recorded and used when accessing the map numbered R3OJ. Furthermore, corresponding to the map with number R3OJ, the map number of the area extending northward of the map is number R29J, the number of the area extending eastward is number R22J, and the map number of the area extending northward of the map is number R22J. The map number of the connected area is number R3,
The map number of the area extending westward is number R36. J
The map number of the next map is conveniently entered during programming as explained in connection with FIG. 2 above. FIG. 8 shows a block diagram of an embodiment of the present invention.

In the figure, reference numeral 4 is a map film corresponding to the one shown in FIG.
The microprocessor 13 stores instructions, data, etc. for displaying the information, 11
12 is a second storage device that stores the overlap zone 8 on the display 14, and 12 is a comparator that stores the information about the traveling trajectory stored in the first storage device 10 and the overlap zone 8 on the display 14. 2, which compares the information regarding the overlap zone stored in the storage device 11 of No. 2;
13 is a microprocessor that displays the traveling trajectory 2 shown in FIG. 1 on the display 14;
14 is a display; 15 and 16 are direction sensors and speed sensors for obtaining current position information; 17 is a map display section which accesses the map film 4 and displays necessary information on the screen of the display 14; It represents something that projects a map. Information inputted by keys during travel programming as described with reference to FIG. 2 is recorded on the magnetic recording section 5 shown in FIG. 7 as shown in FIG. 9.

In Figure 9, 18-1, 18-2, 18-3, ・
...indicates a recording record, and bit part A in each record is the record ● start ● bit and is always set to logic RlJ, and bit part B indicates whether the corresponding record corresponds to the map number or corresponds to the function. It is used as a judgment bit to indicate whether it is a record or not.
In addition, if the bit part C is a record corresponding to a map number, the scale rate of the map is given, for example, by RllJ, and if the record corresponds to a function, the function code is ROOJ (parking
Area) is instructed in the form of RO (refueling) or RlOJ (meal). Further, the bit part D is given a map number when the record corresponds to a map number, and is always given as all zeros when the record corresponds to a function. When key input is performed in response to travel programming as explained in connection with FIG. 2, the processor 13 shown in FIG. 8 displays programmed information as shown in FIG. are sequentially written on the magnetic recording section 5 of the map film 4.

The map film 4 programmed in this manner is set on the map display section 17 during actual driving.

The contents of the magnetic recording section 5 are then read and stored on the first storage device 10. As shown at the beginning of this specification in connection with FIG. 1, the processor 13 displays the traveling trajectory 2 on the display 14 based on the outputs from the direction sensor 15 and the speed sensor 16 mounted on the vehicle body. I'm going to plot it. Note that, since the main subject of the present invention is not the manner in which the traveling trajectory 2 is plotted, a description of the specific configuration for plotting the traveling trajectory 2 will be omitted. However, conceptually, for example, every predetermined rotation of the wheel (every predetermined unit mileage R),
The direction angle 01 with respect to the previous running direction is detected, and the current position Xk. ．． Yk, and each position (Xk..Yk
) may be thought of as leaving a plot corresponding to the display 14 on the display 14. Travel information obtained from the direction sensor 15 and speed sensor 16 for plotting the travel trajectory 2 on the display 14 during actual travel is stored in the first storage device 10 as data for displaying the current position. go.

At the same time, the comparator 12 compares the contents of the second storage device 11, which is stored in advance as the overlap zone 8. When the travel trajectory 2 reaches the overlap zone 8, a comparison signal from the comparator 12 causes the processor to 13, the information corresponding to each record 18 corresponding to the map number shown in FIG. In response to this, the map display unit 17 accesses the map with the corresponding number and projects it on the screen of the display 14. At this time, if there is a record corresponding to a function paired with the record corresponding to the map number, the processor 13 displays the code corresponding to the function in the corner of the screen of the display 14, and Audio through the speaker. and report it to the driver. FIG. 10 shows the writing of the overlap zone 8 onto the second storage device 11 on the display 14.

Several images 19 are displayed on the display surface of the display 14 in the figure.
Divide into sections and separate them. Address (house number) is A1, A2
......, 2, B2...C1, C2...
, and by specifying the address, the traveling trajectory 2, etc. can be displayed. The overlap zone 8 is stored in advance in the second storage device 11 as the above address. Then, the contents of the first storage device 10, which stores addresses for displaying the travel trajectory as the vehicle travels, are compared with the contents of the second storage device 11 by the comparator 12. FIG. 11 shows the construction of an embodiment of the front panel of the on-vehicle course guiding device of the present invention.

In the figure, 14 is the display, 2 is the driving trajectory, 20 is the projected map pattern, 21 is the numeric keypad, 22 is the film advance/rewind operation switch, 23 is the function ● key, and 23-1 is the parking area rest instruction. Key,
23-2 is a refueling instruction key, 23-3 is a meal instruction key, 2
4 is a projection map rotation instruction unit that rotates the map projected on the display screen, for example, by inverting it upside down; 25 is an automatic/manual changeover switch; 26 is a speaker that notifies the above-mentioned information by voice; 27 is a function output as an image on a display screen; It represents an instruction image.
During travel programming as explained with reference to Figure 2,
First, after determining the driving course, project the map shown in Fig. 3, use the numeric keypad 21 to select, for example, map number Select R3OJ and drive as follows.
The map numbers are input using the numeric keypad 21 in order of the course.

Then, input a function using the function ● key 23 as necessary. The input information at this time is collected one record at a time as shown in FIG. 9 and stored in the magnetic recording section 5 shown in FIG. 7. When starting actual driving, the contents of the magnetic recording section 5 are taken into the first storage device 10 as explained in connection with FIG. 8, a new map is accordingly projected onto the display screen.

If a function has been instructed in response to the map, a function instruction image 27 is displayed on the display screen, and audible notification is provided by the speaker 26 as necessary. Furthermore, the projection map rotation instruction section 2
4 is, for example, to prevent the driving trajectory 2 from extending upward on the display screen when the car is traveling southward, which is different from the driver's sense.
The projected map and the entire display screen can be thought of as being inverted vertically so that the direction of travel of the car is always directed upwards when viewed on the display screen. The map display section 17 shown in FIG. 8 has (1) the function of running and projecting the map film 4, and (Ii) the function of writing on the magnetic tape recording section 7 shown in FIG. 6 based on the given map number. It is only necessary to have a function to check the map number displayed and project the desired map. FIGS. 12 to 14 each show an embodiment for projecting a map. In FIG. 12, 14 is a CRT display;
Reference numeral 28 represents a map projection means in the map display section 17, and 29 represents a reflecting mirror, and the map pattern projected from the map projection means 28 is projected onto the display 14. Further, in FIG. 13, 28 and 29 correspond to FIG. 11, 30 is a liquid crystal display, and 31 is a reflector, and the map pattern projected from the map projection means 28 is projected onto the display 30. . Furthermore, in FIG. 14, 28 and 29 correspond to FIG. 12, respectively, and 22 represents an XY plotter. The XY plotter 32 plots the above-mentioned travel trajectory 2 using the processor 13 shown in FIG. 8, and a map pattern is projected onto the display surface of the XY plotter 32 from the map projection means 28. 1st
5 and 16 each show an embodiment in which a course guidance system is installed inside a vehicle.

In the case shown in FIG. 15, a screen or display 35 is installed at the position of the windshield 34 in front of the driver's seat handle 33, and a map pattern is projected by the map projection means 28. As shown, a numeric keypad 21, a film advance/rewind operation switch 22, a function key 23, etc. are arranged as an operation section 36 in the vicinity of a clutch lever 37. Further, in the case shown in FIG. 16, a projector 39 that integrates a display and a map projection means is arranged on the front panel 38, and the operation section 36 is arranged in the same position as in the case shown in FIG. 15. . As explained above, according to the present invention, a map can be projected on a display screen or a screen, and a random map can be specified by performing driving programming according to a driving course. By creating lap zones, it becomes possible to automatically project desired maps one after another. This saves you the trouble of replacing maps, and allows you to enjoy the programming itself before actually driving.

[Brief explanation of the drawing]

FIG. 1 is an external view of a conventional in-vehicle course guidance system, FIG. 2 is a flowchart explaining one embodiment of the programming process performed by the present invention, and FIGS. 3 to 5 are as shown in FIG. An example of a national map (block division map), a regional index map, and a necessary map, FIG. 6 shows an example configuration corresponding to one map in the map film according to the present invention, and FIG. 8 is a block diagram of an embodiment of the map film according to the present invention, and FIG. 9 is an example of an embodiment of program information recorded in a magnetic recording section provided in the map film according to the present invention. , FIG. 10 shows a method of writing an overlap zone into a storage device according to the present invention, and FIG. 11 shows an embodiment of the configuration of a front panel in an on-vehicle course guidance system according to the present invention. Further, FIGS. 12 to 14 each show an embodiment in which a map is projected onto a display or screen surface,
Figures 15 and 16 show the course guidance system, respectively. This figure shows an embodiment in which the system is installed inside a car. 1...
・・CRT display, 2・・・・Travel trajectory, 3
...Map sheet, 4...Map film, 5...Magnetic recording section, 6...Map, 7...
... Magnetic tape recording section, 8 ... Overlap zone, 9 ... Key board, 10 ...
...First storage device, 11...Second storage device, 12...Comparator, 13...Processor, 14...Display, 15・・・・・・
Direction sensor, 16...Speed sensor, 17...
... Map display section, 18 ... Le code, 19.
...Pixel, 20...7...Map pattern, 21.
...Numeric keypad, 22...Film advance/rewind operation switch, 23...Function.
Key, 24... Projection map rotation instruction section, 25...
...Auto/manual changeover switch, 26...Speaker, 27...Function instruction image, 28.
...Map display section, 29...Reflector, 30
...Liquid crystal display, 31...Reflector, 3
2...XY plotter.

Claims (1)

[Claims] 1 Equipped with a direction sensor and a speed sensor, it plots the traveling trajectory on the display in accordance with the output from the direction sensor and speed sensor, and also plots a map pattern on the traveling trajectory displayed by the display screen. In a course guidance system that displays one's own location by superimposing the display, a keyboard is provided corresponding to the above display, and a magnetic recording section is provided that can record map numbers in sequence in accordance with one's running schedule. A map film containing a plurality of maps having different scales in association with the map numbers is created, and the map with the map number is accessed by specifying the map number, and the map pattern is projected onto the travel trajectory. a first storage device having a map display section for detecting an overlap between the travel trajectories on the map, setting an overlap zone on the display screen for detecting that the travel trajectory overlaps on the map, and storing a signal corresponding to the overlap zone; and a second storage device that stores a signal for displaying the travel trajectory on the display screen, and by comparing the contents of the second storage device with the contents of the second storage device, The map display section accesses the map number recorded in the magnetic recording section, plots the travel trajectory on the display, and superimposes the map pattern on the travel trajectory displayed on the display screen. A map search means for a course guidance system characterized by displaying a map.