JP3389707B2 - Map display device - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to a map display apparatus for displaying a map on the monitor screen.

[0002]

2. Description of the Related Art Conventionally, as described above, there is a map display device which receives radio waves from an artificial satellite or the like to measure the position and displays it on a monitor screen. With this map display device, it is possible to reliably reach a destination even on a strange land.
This map display device is generally composed of an antenna for receiving radio waves from an artificial satellite, an apparatus main body, and a display such as a liquid crystal display, and the apparatus main body receives radio waves from the artificial satellite. A storage medium (CD-ROM or I
A reading device for reading map / road information from a C card or the like) is provided. A map is displayed on the monitor screen, and the display changes with the movement. When scrolling the display, the scroll keys are operated to linearly scroll vertically, horizontally and diagonally.

[0003]

By the way, the above-mentioned conventional map display device has the following problems. That is, the scrolling of the display can be performed only vertically, horizontally and diagonally linearly. Therefore, if the road is winding when checking the road you are going to drive, scroll keys in the vertical, horizontal and diagonal directions. You will have to follow the path by operating, but the scroll is linear, so you cannot follow the path smoothly.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a map display device capable of scrolling a display along a road and easily performing a scroll operation when following a road.

[0005]

In order to achieve the above object, a map display device according to a first aspect of the present invention has a storage means for storing map information, a reading means for reading the map information from the storage means, and a reading means. Based on the map display means for displaying a map based on the map information read by the means, the receiving means for receiving the positioning radio wave transmitted from the outside, and the positioning radio wave received by the receiving means. Position calculation means to calculate the position on the map, and this position
Based on the position obtained by the position calculation means
Judgment means for judging road attributes, scroll keys for scrolling the screen, and operation of this scroll key
Created by characterized by comprising a display scrolling means for scrolling the map display in the road the map display means along the attribute determined by the determination means.

A map display device according to the invention as defined in claim 2 stores a map means for storing map information, a read means for reading the map information from the storage means, and a map based on the map information read by the read means. Map display means for displaying, traveling direction detecting means for detecting traveling direction of the vehicle, moving amount detecting means for detecting moving amount of the vehicle, detection result of the traveling direction detecting means and detection of the moving amount detecting means Calculate the running trajectory of the vehicle from the results,
Position calculating means for calculating the position of the vehicle on the map by comparing the calculated traveling locus with the road shape of the map information;
The current running based on the position obtained by this position calculation means
Determining means for determining attributes of the road in a row, and a scroll key for scrolling the screen, the map display in the map display means along the road attributes determined by the determining means by an operation of the scroll key characterized in that a display scrolling means for scan black <br/> Lumpur. Further, as a preferred embodiment, for example, claim 3
According to another aspect of the invention, the display scroll means is
Each time the roll key is operated, it is judged by the judging means.
Along the road of the specified attribute in the map display means
Even if you scroll the figure display by a predetermined distance
good. For example, as in the invention described in claim 4, the scroll
The scroll key includes a roadside forward scroll key for scrolling the screen and a roadside backward scroll key for scrolling the screen.
The step is judged by the operation of the roadside front scroll key.
With scrolling the map display in the map display unit along the direction of progress of the road attributes determined by the unit, before the operation of the roadside post scroll key
The map display on the map display means may be scrolled backward along the direction going backward on the road having the attribute determined by the determination means .

As a preferred embodiment, as in the invention described in claim 5 , further, a receiving means for receiving positioning radio waves transmitted from the outside is further provided, and the vehicle of the vehicle is obtained from a received signal obtained from the receiving means. An absolute position may be obtained, and the position of the vehicle on the map may be obtained from the absolute position and a result obtained by comparing the traveling locus and the road shape of the map information. For example, as in the invention described in claim 6 , a radio wave transmitted from an artificial satellite may be used as the radio wave for positioning. For example, as in the invention described in claim 7 , a radio wave transmitted from a beacon transmitter may be used as the radio wave for positioning.

[0008] As the invention of example if claim 8, wherein said display scrolling means, as performed continuously along the display of a predetermined display area on the map around the point on the current road to the road You can For example, as in the invention according to claim 9 , the map display in the map display means is vertically
It is also possible to provide a scroll key for linearly scrolling the display in each of the lateral and diagonal directions, and scroll the map display in the map display means based on the operation of the scroll key.

[0009]

In the present invention, when the scroll key for scrolling the screen is operated, the map display is scrolled along the road currently running. Therefore, even if the road turns around when checking the road you are going to drive, the map display will scroll along the direction of travel of the road you are currently driving. Can be done very smoothly.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a circuit configuration of an embodiment of a map display device according to the present invention. A. Configuration of Map Display Device (a) Circuit Configuration In FIG. 1, 1 is an antenna, 2 is a GPS unit, and L from an artificial satellite (not shown) captured through the antenna 1
The 1-band C / A code is demodulated, this is decoded, the latitude / longitude of the current position is calculated, and the result is output. This G
Latitude / longitude information from the PS unit 2 is sent to the CPU via the bus 3.
Taken in 4. A CD-ROM 5 stores map / road information such as road data and place name data.
Reference numeral 6 denotes a CD unit, which reads out map / road information from the CD-ROM 5 and outputs it. Reference numeral 7 denotes a CPU peripheral circuit that transmits and receives signals between the CPU 4 and each peripheral circuit. CPU
The CPU 4 accesses the CD-ROM 5 through the CPU peripheral circuit 7 and reads the map / road information around the present location. Further, the CPU 4 takes in a key signal from the key input unit 8 via the CPU peripheral circuit 7. By implementing the CPU peripheral circuit 7 with a gate array, it is possible to obtain an optimum one for this device at low cost.

The key input section 8 includes scroll keys K1 ₁ ...
K _8, peas forward scroll key K2 _1, roadside-rear direction scroll key K2 _2, mode setting key K3 and the arrow keys K
4 ₁ to K4 is configured to have various keys _4, and outputs a key signal corresponding to the operation of these keys. Scroll keys K1 ₁ ~K ₈ is a key to use the map display vertical, horizontal, when causing linearly displayed scrolling in each direction of the diagonal. The roadside forward scroll key K2 ₁ is a key used for scrolling the display along the traveling direction of the road currently running, and the roadside rearward scroll key K2 ₂
Is a key to be used for scrolling the display of the currently running road in the direction going backward. The mode setting key K3 is a key used for setting the route guidance mode and the like.
In this case, the route guidance mode is a mode in which an attribute of a road on which the vehicle is traveling (for example, National Highway No. 1) is input to guide the road. The arrow keys K4 _{1 to} K4 ₄ are used as selection keys for selecting any one of these when the roads branched into a plurality of intersections have the same attribute. Especially, it is used when the roadside scroll is performed without selecting the route guidance mode.

A RAM 9 is used as a work memory. A ROM 10 stores a program for creating a road map display. A video RAM (hereinafter referred to as VRAM) 11 stores a road map. 12
Is a graphic controller, which reads a road map stored in the VRAM 11 according to a command from the CPU 4, converts the road map into a video signal, and outputs the video signal. Reference numeral 13 is a monitor, which performs display based on the video signal from the graphic controller 12. A road map around the current location is displayed on the monitor 13.

(B) Main control contents of the CPU 4 (a) After inputting latitude / longitude information from the GPS unit 2,
The CD unit 6 is accessed via the CPU peripheral circuit 7 to read road data and place name data around the current location. (B) A program for creating a road map display is read from the ROM 10, and the RAM 9 is used as a work memory while the VRAM 11 is supplied via the graphic controller 12.
Expand the graphics of the road map above. (C) Roadside front scroll key K2 _{1 of} key input unit 8
Or when it is detected that the roadside-rear direction scroll key K2 ₂ is pressed, and outputs an instruction to roadside scroll the graphic controller 12. (D) when it is detected that the scroll key K1 ₁ ~K ₈ of the key input unit 8 is pressed, the vertical, and outputs instructions to linearly display scrolls to the transverse or diagonal direction to the graphic controller 12.

(C) Main operation contents of the graphic controller 12 (b) Data such as roads and place names are read from the VRAM 11 according to an instruction from the CPU 4, converted into video signals and output to the monitor 13. (B) When a command for roadside scrolling is received from the CPU 4, a predetermined display section centered on a point on the road on which the vehicle is currently traveling is calculated, and the predetermined display section is preliminarily calculated from the road map developed on the VRAM 11. The road map corresponding to the display section of 1 is read, converted into a video signal and output to the monitor 13. This processing is executed every time the roadside front scroll key K2 ₁ or the roadside rearward scroll key K2 ₂ is pressed. The details of the roadside scroll will be described below. (C) When a command for normal scrolling is received from the CPU 4, a display section that is linearly moved by a predetermined distance in the vertical, horizontal, or diagonal directions from the display section centering on the current position on the road map. The road map corresponding to VRAM
It is read from 11, converted into a video signal and output to the monitor 13. This process is scroll key K1 ₁ ~K ₈
Is executed every time is pressed.

(D) Details of roadside scroll 2 to 4 are diagrams showing the way of roadside scrolling. Figure
Reference numeral 2 is a road map developed on the VRAM 11. this
The road map is developed based on the current position. Monitor 1
3 is the table on the road map as shown in Fig. 3 (a) at this time.
The display area is displayed. This display area is currently
It is obtained centering on the position Pg. Also, L
Is the road on which you are currently driving. Here, the current position Pg
In, for example, the roadside forward scroll key K2₁Press
Then, the vehicle moves a predetermined distance from the current position Pg along the road L.
The display section with the centered position is selected. And
Instead of the display area on the monitor 13, it is shown in FIG.
Such a display section is displayed. Roadside again in this state
Forward scroll key K2₁Press to display in the display area.
Position moved along the road L from the center position
A display section centered on is selected. And monitor
As shown in Fig. 3 (c), instead of the display area on -13
Display area is displayed. After that, in the same way as the road front direction
Crawl key K2₁By pressing, the display of Fig. 4 (a)
The section, and further the display section in FIG. 4B is the monitor 1.
3 are sequentially displayed. In addition, a rearward scroll key
-K2 Push 2 to go in the opposite direction on road L
The display is scrolled.

On the other hand, if the intersection is approached during roadside scrolling, the following processing is performed. (A) When the route guidance mode is set, the road to be taken next is known, so as shown in FIG. 5, scroll along the road L. (B) When the route guidance mode is not set and one of the roads after the branch has the same attribute, the road is scrolled along the road L that has been traveled so far, as shown in FIG. In addition, having the same attribute means, for example, that roads before and after branching are both national roads or both are highways. (C) If the route guidance mode is not set and all the roads after branching have the same attribute, a menu screen is displayed as shown in FIG. 7 to prompt the user to select an arbitrary road. This selection is made with the arrow keys K4 _{1 to} K4 ₄ . In this case, when the arrow keys K4 _{1 to} K4 ₄ are pressed, the color of the selected road changes to a color different from the other roads.

The GPS unit 2 corresponds to a receiving means. The CD-ROM 5 corresponds to a storage means. Also, CD
The unit 6 corresponds to the reading means. Also, CPU4, VR
The AM 11, the graphic controller 12 and the monitor 13 constitute the map display means 100. Also, CPU4
Corresponds to the position calculation means. Also, CPU4, VRAM
11 and the graphic controller 12 form a display scroll means 110.

The operation of the above configuration will be described with reference to the flow chart. B. Operation of Map Display Device FIGS. 8 and 9 are flowcharts showing the operation of the map display device of this embodiment. (A) Development processing of road map around current position on VRAM 11 In steps S10 to S16, road map around current position is expanded on VRAM 11. First, in step S10, the latitude / longitude information of the current position output from the GPS unit 2 is input. Then, in step S12, a display area for expanding the map is calculated from the current position. Next, in step S14, the CD unit 6 is accessed and the CD-R in which the map / road information is stored based on the latitude / longitude of the display area.
Road data and place name data are read from OM5. Then, in step S16, the road map graphics are developed on the VRAM 11 based on the road data and the map data read from the CD-ROM 5.

(B) Monitor 13 in display section of road map
The display section of the road map developed on the VRAM 11 in step S18 to step S22 is displayed on the monitor 13. After the road map graphics are developed on the VRAM 11 in step S16 described above, the V map is expanded in step S18.
From the road map developed on RAM 11, monitor 13
Cut out a predetermined display section to be displayed on. Then, in step S20, the road data in the display section cut out from the VRAM 11 is read out and displayed on the monitor 13. Further, in step S22, the place name data in the display section cut out from the VRAM 11 is read out and displayed on the monitor 13. As a result, the VRAM 11
The road map of the display section cut out from is displayed on the monitor 13.

(C) Scroll processing Normal scroll processing and roadside scroll processing are performed in steps S24 to S46. After the road map is displayed on the monitor 13, it is determined in step S24 whether a key is pressed. In this determination, if it is determined that the key is not pressed, this step is repeated, and if it is determined that the key is pressed, the process proceeds to step S26, and it is determined whether or not the pressed key is the roadside scroll key K2. If it is determined in this determination that the roadside scroll key K2 is not pressed, the process proceeds to step S28, and if it is determined that the roadside scroll key K2 is pressed, the step S28.
Proceed to 30.

When it is judged that the roadside scroll key K2 has not been pressed and the process proceeds to step S28, the scroll key K2
Assuming that 1 _{1 to} K ₈ are pressed, the processing corresponding to the operation is performed. For example, if the scroll key K1 ₁ is pressed,
VRAM1 is a display section that is linearly moved upward from the display section centering on the current position on the road map by a predetermined distance.
The process of cutting out from 1 is performed. This process is step S18.
In step S20 and S22, road data and place name data are displayed on the monitor 13. The same processing is performed when other scroll key K1 ₂ ~K ₈ is pressed. On the other hand, if it is determined that roadside scroll key K2 is pressed is determined in the step S26 proceeds to step S30, peas scroll key K2 which is pressed to start the roadside scroll forward if roadside forward scroll key K2 _1, roadside If the backward scroll key K2 ₂ , the roadside scroll is started backward.

Then, in step S32, it is determined whether or not the route guidance mode is set. If it is determined in this determination that the vehicle is in the route guidance mode, the road to be advanced next is determined, so the process proceeds to step S34, and a display section centering on the current position on the currently traveling road is calculated. Then, in step S18, the previously obtained display section is cut out from the road map on the VRAM 11. Then, in the same manner as described above, the road data in the display section cut out from the VRAM 11 is read out in step S20 and displayed on the monitor 13. Further, in step S22, VRAM
The place name data in the display section cut out from 11 is read out and displayed on the monitor 13. This allows
The road map of the display section cut out from the VRAM 11 is displayed on the monitor 13. Here, in FIG. 2, assuming that the display section is currently displayed on the monitor 13, when the roadside front direction scroll key K2 ₁ is pressed once, the display section is displayed on the monitor 13 instead of the display section. It Further along the road front direction scroll key K2 ₁
When is pressed, the display section is displayed on the monitor 13 instead of the display section. After that, the roadside front scroll key K
Every time 2 ₁ is pressed, a new display section is displayed along the road in the traveling direction.

On the other hand, if it is determined in step S32 that the route guidance mode is not set, the process proceeds to step S38 to determine whether or not the current location is an expressway. If it is determined that the current location is not an expressway in this determination, step S
In step 40, it is determined whether or not the current location is a national road. When the current position in the judgment is determined to be not national road, the process proceeds to step S28 as unable roadside scroll, to enable operation of the scroll key K1 ₁ ~K _8. That is, if the current location is not an expressway or a national road, roadside scrolling is disabled and normal scrolling can be performed.

If the present location is an expressway or a national road, the process proceeds to step S40 and it is determined whether there is a branch point such as an intersection. If it is determined in this determination that there is no branching point such as an intersection, the process proceeds to step S36 and the above-described processing is performed. On the other hand, if it is determined that there is a junction such as an intersection, the process proceeds to step S42, and it is determined whether or not all the roads after the intersection such as the intersection have the same attributes as the road at the current position. . If it is determined that they have the same attribute in this determination, the process proceeds to step S36, and the same process as the above-described process is performed. On the other hand, if it is determined that the attributes are not the same, the process proceeds to step S44, and the menu screen is displayed as shown in FIG. Then, in step S46, it is determined whether or not the road after the branch has been selected. If it is determined in this determination that the road after branching is not selected, this step is repeated, and if it is determined that the road after branching is selected, the process proceeds to step S36 and the same process as the above-described process is performed.

As described above, in this embodiment, the latitude / longitude information of the current position is obtained from the GPS unit 2 to obtain the display area for map development, and the latitude / longitude information of the current position is used to read road data from the CD-ROM 5. And the place name data are read and a road map is developed on the VRAM 11. Then, monitor 1 from the road map developed on VRAM 11.
After cutting out the display section to be displayed on the display section 3, the road data and the place name data in the display section are read from the VRAM 11 and displayed on the monitor 13. In this state, when the roadside forward scroll key K2 ₁ or the roadside backward scroll key K2 ₂ is pressed, in the route guidance mode, a predetermined distance along the road from the display section centered on a point on the current road After cutting out the display section moved by only from the VRAM 11, the road data and the place name data in the display section are read out from the VRAM 11 and displayed on the monitor 13.

This processing is performed by the roadside front direction scroll key K2.
_This is performed every time ₁ or the roadside backward scroll key K2 ₂ is pressed. If the current location is not a highway or a national road in a route guidance mode, roadside scrolling is disabled. If the current location is a highway or a national road, a display section that is moved by a predetermined distance along the road from the display section centered on a point on the road is cut out from the VRAM 11 and then the road data and the place name in the display section are displayed. Data to VRAM1
It is read from 1 and displayed on the monitor 13. If the current location is a highway or a national road and there is a branch point and all the roads after the branch have the same attributes as the roads before the branch, the menu to be selected is displayed. Therefore, by performing roadside scrolling, the map display scrolls along the traveling direction of the road currently running, even if the road is winding when confirming the road to be driven, The scrolling operation can be performed very smoothly when following.

The present invention is not limited to the above embodiments, and various embodiments are possible within the scope of the object of the present invention. Specifically, the following may be done. (A) Although the positioning is performed by the GPS using the artificial satellite, the relative position may be obtained by obtaining the traveling locus by the azimuth sensor (traveling direction detecting means) and the distance sensor (moving amount detecting means). This method is called so-called dead reckoning. Further, the position on the map may be obtained by comparing the traveling locus obtained by dead-reckoning and the road shape of the map and determining the passing road. This method is so-called map matching. Also,
This map matching and GPS may be combined.
By doing so, the accuracy can be further improved.

[0028] In addition to obtaining the (b) automatically by the GPS or the like current location, check the current position from the situation of the building, such as around visually on a map, for example, arrow keys K4 ₁ ~ Example
K4 ₄ may be designated a road on which the vehicle is currently traveling with (road specifying means). In this case, although the map is simply an electronic map, there is an advantage that the cost can be reduced because it does not have an automatic positioning function. It can be used as a portable electronic map display device. (C) In addition to the radio wave from the artificial satellite, a radio wave transmitted from a beacon transmitter or the like may be received and positioning may be performed based on this. (D) The map / road information may be supplied from an IC card or the like instead of being supplied from the CD-ROM 5. By doing so, the size of the apparatus main body can be reduced.

[0029]

According to the present invention, by operating the scroll key for scrolling the screen, the map display is scrolled along the road on which the vehicle is currently traveling. Therefore, the road to be traveled can be confirmed. Even if the road turns around when you go around, the map display scrolls along the direction of travel of the road you are currently driving, so the scroll operation when you follow the road can be done very smoothly. To be

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of an embodiment of a map display device according to the present invention.

FIG. 2 is a diagram showing a road map developed in a VRAM 11 of the map display device of the embodiment.

FIG. 3 is a diagram showing an example of a display section cut out from a VRAM 11 of the map display device of the embodiment.

FIG. 4 is a diagram showing an example of a display section cut out from a VRAM 11 of the map display device of the embodiment.

FIG. 5 is a diagram showing an example of a display section cut out from the VRAM 11 of the map display device of the embodiment.

FIG. 6 is a diagram showing an example of a display section cut out from a VRAM 11 of the map display device of the embodiment.

FIG. 7 is a diagram showing an example of a display section cut out from the VRAM 11 of the map display device of the embodiment.

FIG. 8 is a flowchart showing a road map display process of the map display device of the embodiment.

FIG. 9 is a flowchart showing a road map display process of the map display device of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Antenna 2 GPS part (reception means) 3 Bus 4 CPU (position calculation means) 5 CD-ROM (storage means) 6 CD part (reading means) 7 CPU peripheral circuit 8 Key input part 9 RAM 10 ROM 11 VRAM 12 Graphic controller 13 monitor 100 map display unit 110 display scrolling means K2 ₁ peas forward scroll key K2 ₂ peas rear direction scroll key K1 ₂ ~K ₈ scroll key

Continuation of the front page (56) Reference JP-A-5-323872 (JP, A) JP-A-4-367889 (JP, A) JP-A-5-26997 (JP, A) JP-A-5-307356 (JP , A) JP 5-173482 (JP, A) JP 5-249890 (JP, A) JP 4-365086 (JP, A) JP 5-18764 (JP, A) JP 6-187422 (JP, A) JP 7-260505 (JP, A) JP 7-55482 (JP, A) JP 7-198401 (JP, A) JP 6-94468 (JP, A) Japanese Unexamined Patent Publication No. 6-102819 (JP, A) Actual development Sho 64-30409 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G01C 21/00 G01S 1/68 G01S 5 / 02 G08G 1/0969 G09B 29/00

Claims (9)

(57) [Claims] 1. Storage means for storing map information, Reading means for reading map information from the storage means, Based on the map information read by this reading means
Map display means for displaying a map, Receiver receiving the positioning radio waves transmitted from the outside
Dan, Based on the positioning radio wave received by this receiving means
Position calculation means for calculating the position on the map byThe current running based on the position obtained by this position calculation means
Determination means for determining the attribute of the road in progress, Scroll key for scrolling the screen, This scroll keyBy the operation of
Defined attributesAlong the road in the map display means
Map displayTheDisplay scrolling means to crawl, A map display device comprising: 2.   Storage means for storing map information, Reading means for reading map information from the storage means, Based on the map information read by this reading means
Map display means for displaying a map, Traveling direction detecting means for detecting the traveling direction of the vehicle, Movement amount detection means for detecting the movement amount of the vehicle, Detection result of the traveling direction detection means and the movement amount detection means
The traveling locus of the vehicle is calculated from the detection result of
Before comparing the traveled route and the road shape in the map information
Position calculating means for obtaining the position of the vehicle on the map,The current running based on the position obtained by this position calculation means
Determination means for determining the attribute of the road in progress, Scroll key for scrolling the screen, This scroll keyBy the operation of
Defined attributesAlong the road in the map display means
Map displayTheDisplay scrolling means to crawl, A map display device comprising: 3. The display scroll means is
Each time the key is operated, it is judged by the judging means.
The map in the map display means along the road with the specified attribute
Characterized by scrolling the display by a predetermined distance
The map display device according to claim 1 or 2. 4.The scroll keys are Roadside forward scroll key to scroll the screen
-, Roadside backward scroll key to scroll the screen
-AndIncluding, The display scroll means, By operating the scroll key before the roadsideIn the determination means
Attribute determined byAlong the direction of the road
When you scroll the map display in the map display means
By the operation of the scroll key after the roadside,The judgment
Attribute determined by meansAlong the direction going backwards on the road
The map display on the map display means is scrolled backward.
LetRukoCharacterized byAny one of claims 1 to 3.
Described inMap display device. 5. A reception means for receiving a positioning radio wave transmitted from the outside is further provided, wherein the position calculation means obtains an absolute position of the vehicle from a reception signal obtained from the reception means, and the absolute position is obtained. The map display device according to claim 2, wherein the position on the map of the vehicle is obtained from the result obtained by comparing the traveling locus and the road shape of the map information. 6. The radio wave for the positioning, the claim 1 or characterized in that it is a radio wave transmitted from an artificial satellite map display device according to claim 5. 7. The radio wave for the positioning, according to claim 1, characterized in that the radio wave transmitted from the beacon transmitter
Or map display device according to claim 5. Wherein said display scrolling means 1 through claim, characterized in that continuously performed along a display of a predetermined display area on the map around the point on the current road to the road
7. The map display device according to any one of 7 . 9. A scroll key for linearly scrolling the map display in the map display means in each of vertical, horizontal, and diagonal directions is further provided. operation map display device according to any one of claims 1 to 8, characterized in that the scrolling of the map display in the map display unit based on.