JP5232391B2 - Map display device - Google Patents

Description

  The present invention relates to a map display device that displays weather information superimposed on a map.

2. Description of the Related Art A navigation device that displays weather information in a superimposed manner on a map screen when the map screen becomes a wide area display of a predetermined level or higher is known as a conventional technique (for example, Patent Document 1). In this navigation device, the scale bar displayed on the display is displayed. Touching the wide area of the scale bar reduces the scale of the map on the screen. Touching the detailed side of the scale bar reduces the scale of the map on the screen. The scale factor increases.
JP 2000-2550 A

  In the conventional navigation device described in Patent Document 1, it is not possible to select and display a desired point on the map on the screen. For this reason, there exists a problem that the weather information of a desired point cannot be displayed in detail.

(1) The map display device of the invention of claim 1 is displayed on a display monitor provided with a touch panel, display control means for displaying a map on the display monitor, weather information receiving means for receiving weather information, and a display monitor. that comprises an instruction means for instructing a stepwise change of the scale of the map, the display control means, the weather information acquired by the weather information receiving unit and displays overlaid with the map, the map displayed on the display monitor When pressed, if the scale of the map is less than a predetermined value, the detailed map of the map is displayed. If the scale of the map is higher than the predetermined value, the map is scrolled and the display control means displays the weather information superimposed on the map In this case, the number of scale scale steps that can be instructed by the instruction means is smaller than the number of map scale scale steps when weather information is not superimposed on the map .
(2) The invention of claim 2 is the map display device according to claim 1, wherein when the map displayed on the display monitor is pressed, the display control means is pressed when the scale of the map is less than a predetermined value. A detailed map of a map area corresponding to the set position is displayed.
(3) The invention according to claim 3 is the map display device according to claim 1, wherein the display control means presses when the map displayed on the display monitor is pressed and the scale of the map is less than a predetermined value. A detailed map of the map in which the displayed position is displayed at the center of the display screen of the display monitor is displayed.
(4) The invention according to claim 4 is the map display device according to any one of claims 1 to 3, wherein the weather information includes detailed weather information for displaying on the detailed map. To do.
(5) The invention of claim 5 is the map display device according to any one of claims 1 to 4, wherein the display control means displays the button together with the map on the display monitor, and when the button is pressed, An execution means for executing a process defined for the button is provided, and the display control means deletes the button if the display screen of the display monitor is not pressed until a predetermined time elapses after the button is displayed.
( 6 ) The map display device of the invention of claim 6 is a display monitor, display control means for displaying a map on the display monitor, weather information receiving means for receiving weather information, and a scale of the map displayed on the display monitor. An instruction means for instructing a step change in the rate, and the number of scale scale steps that can be indicated by the instruction means when the weather information acquired by the weather information receiving means is displayed on the map is the weather information It is characterized in that it is smaller than the number of scales of the map when it is not displayed superimposed on the map.

  According to the present invention, when a map below a predetermined scale ratio is pressed among maps on which weather information is superimposed and displayed, a detailed map of the pressed map is displayed, and a map having a predetermined scale ratio or more is pressed. And scroll the pressed map. Therefore, the weather information of a desired point can be displayed in detail on the map.

  FIG. 1 shows a navigation device 1 according to an embodiment of the present invention. The navigation device 1 can receive weather information from satellite radio broadcasts, and can display the weather information on the display monitor 16 so as to overlap the map. Known satellite radio broadcasts include, for example, Sirius satellite radio. The navigation device 1 includes a control circuit 11, ROM 12, RAM 13, current location detection device 14, image memory 15, display monitor 16, speaker 17, input device 18, touch panel 19, touch panel control unit 110, satellite radio reception unit 111, reception memory 112. And a disk drive 113. The disk drive 113 is loaded with a DVD-ROM 114 in which map data is stored.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and performs various controls by executing a control program stored in the ROM 12 using the RAM 13 as a work area. When the control circuit 11 performs a predetermined route search process based on the map data stored in the DVD-ROM 114, the processing result is displayed on the display monitor 16 as a recommended route. In addition, the control circuit 11 generates image data for displaying a map or the like. By drawing gray on the map, it is possible to blend (mix) gray on the map and display the map inconspicuously. The control circuit 11 has a built-in timer 11a and can measure time.

  The current location detection device 14 is a device that detects the current location of the vehicle. The current location detection device 14 includes a vibration gyro 14a, a vehicle speed sensor 14b, a GPS (Global Positioning System) sensor 14c, and the like. The vibration gyro 14a detects the traveling direction of the vehicle, the vehicle speed sensor 14b detects the vehicle speed, and the GPS sensor 14c detects a GPS signal from a GPS satellite. The navigation device 1 determines a display range of the map, a route search start point, and the like based on the current location of the vehicle detected by the current location detection device 14, and displays the current location as a vehicle position mark on the map.

  The image memory 15 stores image data to be displayed on the display monitor 16. This image data includes road map drawing data and various graphic data, which are appropriately generated based on the map data stored in the DVD-ROM 114. The navigation device 1 can perform map display and the like by using the image data generated in this way.

  The disk drive 113 reads map data from the DVD-ROM 114. The map data includes map display data, route search data, and the like. The map display data and the route search data include road link information and node information stored in the map data. The map display data has map data at a scale of 7 levels from a wide area to details, and the scale of the display map can be changed to 7 levels according to a user request or the like. The map data may be read from a recording medium other than the DVD-ROM 114, such as a CD-ROM or a hard disk.

  The display monitor 16 provides the user with various information such as a map near the vehicle position as a screen display based on various information such as map data. The speaker 17 outputs sound for instructing the user to perform various input operations and for guiding the route. The input device 18 has operation keys for the user to set various commands, and is realized by a button switch on the operation panel, a hard switch around the panel, or the like. The user manually sets the destination by manually operating the input device 18 in accordance with an instruction on the display screen of the display monitor 16 or a voice instruction from the speaker 17. Further, by operating the input device 18, it is possible to select a satellite radio broadcast.

  When the destination is set by the user, the navigation device 1 performs a route calculation from the current location detected by the current location detection device 14 to the destination based on a predetermined algorithm. The route thus obtained (hereinafter referred to as a recommended route) is displayed on the screen in a manner different from other roads by changing the display form, for example, the display color. Thereby, the user can recognize the recommended route on the map on the screen. Further, the navigation device 1 instructs the user in the direction of travel using a screen or voice so that the vehicle can travel according to the recommended route, thereby guiding the route of the vehicle.

  The touch panel 19 is a transparent touch switch laminated on the surface of the display monitor 15, and an image displayed on the display monitor 16 is displayed through the touch panel 19. Therefore, when the display screen of the display monitor 16 is pressed, the touch panel 19 is pressed. The touch panel 19 sends a signal corresponding to the operation position on the touch panel 19 to the touch panel control unit 110, and the touch panel control unit 110 calculates the pressed position of the touch panel 19.

  When various buttons or display menus displayed on the display monitor 16 are pressed with a finger or the like, the touch panel 19 is pressed, and processing defined in the various buttons and display menu is executed. Further, when the map displayed on the display monitor 16 is pressed, the touch panel 19 is pressed, and processing for enlarging the map or scrolling the map is executed.

  The satellite radio receiver 111 receives a satellite radio broadcast broadcast from a satellite radio station (not shown) via an artificial satellite and outputs it to the control circuit 11. The received satellite radio broadcast is output from the speaker 17. The weather information of the satellite radio broadcast received by the satellite radio reception unit 111 is stored in the reception memory 111. The weather information of the satellite radio broadcast includes detailed weather information displayed when the detailed map is displayed in addition to the weather information displayed when the wide area map is displayed.

  The weather information of satellite radio broadcasting includes weather map information, storm information such as hurricanes, rainfall distribution information by weather radar, wind direction and wind information at each observation point, and the like. The information on the weather map includes, for example, information on the position (latitude / longitude) of high pressure and low pressure, position information on warm front and cold front, and the like. The storm information includes information on the position of the hurricane and the position of the tornado. The information on the rainfall distribution includes a position where it is raining and information on the rainfall at that position.

  The reception memory 111 is configured by a rewritable nonvolatile recording medium such as a flash memory or a hard disk, and stores weather information received by the satellite radio reception unit 110.

  Next, the display process of the map which displayed the weather information in embodiment of this invention is demonstrated with reference to FIGS. FIG. 2A is a diagram for explaining a display screen of the display monitor 16 that is displayed when weather information display is selected from a menu (not shown). As shown in FIG. 2A, the map 20 is divided into 16 map areas by dividing lines. In order to identify the map area, as shown in FIG. 2B, reference numerals 20a to 20p are attached to the respective map areas.

  As shown in FIG. 2 (a), the map areas 20a to 20c, 20e to 20g, 20h to 20k, 20o, and 20p in which the weather information is received from the satellite radio broadcast in the map areas 20a to 20p are displayed in gray on the map. Blend and display. On the other hand, for the map areas 20d, 20l, 20m, and 20n that do not receive weather information from the satellite radio broadcast in the map areas 20a to 20p, the map is displayed with the background color as it is.

  As shown in FIG. 2A, weather information is displayed as an icon, a line diagram, or the like on the map 20. The icon 21a indicates a high pressure, and the icon 21b indicates a low pressure. The icon 21c shows the weather of the kite and kite, and the icon 21d shows the tornado. Icon 21e indicates a hurricane. Moreover, the diagram 22a shows a warm front, and the diagram 22b shows a cold front. A region 23 shows the rainfall distribution measured by the weather radar.

  As shown in FIG. 2A, various buttons are superimposed on the map 20. The weather map button 24a is a button for displaying a weather map represented by icons 21a and 21b indicating high pressure and low pressure. The storm button 24b is a button for displaying icons 21c to 21e representing storms such as a hurricane, a tornado, a kite, and a kite. The radar button 24c is a button for displaying the rainfall distribution measured by the weather radar. The wind button 24d is a button for displaying wind direction and wind information.

  The blend level change buttons 25a and 25b are buttons for changing the gray blend degree to be blended with the map. When the blend level change button 25a is pressed, the degree of gray blending increases and the map approaches gray. On the other hand, when the blend level change button 25b is pressed, the degree of gray blending decreases, and the map approaches the original background color of the map.

  A 1000 km scale 26a is displayed so that the user can recognize the scale of the map.

  If the display screen is not pressed for 5 seconds after the map 20 is displayed, the buttons 24a to 24d, 25a, 25b and the scale 26a that are displayed in an overlapping manner on the map 20 are deleted as shown in FIG. Furthermore, if the display screen is not pressed for 3 seconds, the dividing line displayed on the map 20 as shown in FIG. 4 is also deleted.

  As shown in FIG. 5A, when the map 20 is pressed while the dividing line is displayed on the map 20 having a scale smaller than the predetermined scale, as shown in FIG. 5B, the pressed map area 20h. The detailed map 50 is displayed on the display screen of the display monitor 16. On the detailed map 50, the rainfall distribution 23 measured by the weather radar that was not displayed on the map 20 is displayed as detailed weather information. Overlaid on the detailed map 50, a weather map button 24a, a storm button 24b, a radar button 24c, a wind button 24d, blend level change buttons 25a and 25b, a scale 26b of 100 km, and scale ratio change buttons 27a and 27b are displayed.

  The scale change button 27a is a button for displaying the map 20 of FIG. 2 by reducing the scale of the detailed map 50. The scale ratio change button 27 b is a button for displaying a detailed map having a larger scale ratio than that of the detailed map 50. Details of this detailed map will be described later.

  When the map 20 from which the dividing line as shown in FIG. 4 is deleted is pressed, the display returns to the map 20 of FIG. That is, the buttons 24a to 24d, 25a, 25b, the scale 26a, and the dividing line are displayed on the map 20 again. Even if the map 20 from which the dividing line is deleted is pressed, the detailed map 50 is not displayed.

  When the display screen is not pressed for 5 seconds after the detailed map 50 is displayed, the weather map button 24a, storm button 24b, radar button 24c, wind button 24d, blend level are displayed from the detailed map 50 as shown in FIG. The change buttons 25a and 25b, the 100km scale 26b, and the scale change buttons 27a and 27b are deleted. However, when the detailed map 50 in which the weather button 24a and the like are deleted is pressed, the weather map button 24a, the storm button 24b, the radar button 24c, the wind button 24d, the blend level change buttons 25a and 25b, the 100 km scale 26b and the scale rate change. Buttons 27a and 27b are displayed again.

  FIG. 7 is a diagram for explaining a detailed map 70 that is displayed when the scale ratio change button 27b of FIG. 5B is pressed. The detailed map 70 is a map obtained by enlarging the detailed map 50. The detailed map 70 displays the rainfall distribution 23 measured by the weather radar, the wind direction, and the wind force 28 as detailed weather information. The detailed map 70 also includes a weather map button 24a, a storm button 24b, a radar button 24c, a wind button 24d, blend level change buttons 25a, 25b, a 10 km scale 26c, and scale rate change buttons 27a, 27c. The scale ratio change button 27c is a button for reducing the scale ratio of the detailed map 70 and displaying the detailed map 50 of FIG.

  When the display screen is not pressed for 5 seconds after the detailed map 70 is displayed, the weather map button 24a, storm button 24b, radar button 24c, wind button 24d, blend level are displayed from the detailed map 50 as shown in FIG. The change buttons 25a, 25b, the 10km scale 26c and the scale change buttons 27a, 27c are deleted. However, when the detailed map 70 in which the weather button 24a and the like are deleted is pressed, the weather map button 24a, the storm button 24b, the radar button 24c, the wind button 24d, the blend level change buttons 25a and 25b, the 10 km scale 26c and the scale rate change. Buttons 27a and 27c are displayed again.

  When the detailed maps 50, 70 on which the buttons 24a-24d, 25a, 25b, 27a-27c and the scales 26b, 26c are displayed are pressed, the detailed map 50, 70 is displayed so that the pressed point is displayed at the center of the display screen. 70 is scrolled. For example, as shown in FIG. 9A, when the point 71 on the detailed map 70 is pressed, the detailed map 70 is scrolled, and the pressed point 71 on the detailed map 70 is displayed as shown in FIG. 9B. Displayed in the center of the screen.

  Next, the display process of the map which displayed the weather information in embodiment of this invention is demonstrated with reference to the flowchart of FIGS. 10 to 12 are executed in the control circuit 11 by a program that starts when weather information display is selected from a menu (not shown).

  In step S1001, based on the weather information received by the satellite radio receiver 111, the map 20 on which the weather information is superimposed is displayed on the display monitor 16. In step S1002, the buttons 24a to 24d, 25a, 25b, the scale 26a, and the dividing line are displayed so as to overlap the map 20.

  In step S1003, the timer 11a is started. In step S1004, it is determined whether or not the map 20 has been pressed based on the signal output from the touch panel 19 and the pressed position calculated by the touch panel control unit 110. When the map 20 is pressed, an affirmative determination is made in step S1004, and the process proceeds to step S1101 in FIG. If the map 20 is not pressed, a negative determination is made in step S1004, and the process proceeds to step S1005. In step S1005, it is determined whether or not the time measured by the timer 11a has passed 5 seconds. If 5 seconds have elapsed, an affirmative determination is made in step S1005 and the process proceeds to step S1006. If 5 seconds have not elapsed, a negative determination is made in step S1005, and the process returns to step S1004. In step S1006, the buttons 24a to 24d, 25a, 25b and the scale 26a are deleted from the display screen of the display monitor 16. In step S1007, the timer 11a is reset.

  In step S1008, the timer 11a is started. In step S1009, it is determined whether or not the map 20 is pressed. When the map 20 is pressed, an affirmative determination is made in step S1009 and the process proceeds to step S1101 in FIG. If the map 20 is not pressed, a negative determination is made in step S1009 and the process proceeds to step S1010. In step S1010, it is determined whether or not the time measured by the timer 11a has passed 3 seconds. If 3 seconds have elapsed, an affirmative determination is made in step S1010, and the process proceeds to step S1011. If 3 seconds have not elapsed, a negative determination is made in step S1010, and the process returns to step S1009. In step S1011, the timer 11a is reset.

  In step S1012, the dividing line superimposed on the map 20 is deleted. In step S1013, it is determined whether the map 20 has been pressed. If the map 20 is pressed, an affirmative determination is made in step S1013 and the process returns to step S1002. If the map 20 is not pressed, step S1013 is repeated.

  In step S1101 of FIG. 11, a detailed map 50 on which detailed weather information is superimposed is displayed on the display monitor 16. The detailed map 50 is an enlarged display of the pressed map area 20h. In step S1102, the buttons 24a to 24d, 25a, 25b, 27a, 27b and the scale 26b are superimposed on the detailed map 50 and displayed.

  In step S1103, the timer 11a is started. In step S1104, it is determined whether or not the detailed map 50 has been pressed. If the detailed map 50 is pressed, an affirmative determination is made in step S1104, and the process proceeds to step S1111. If the detailed map 50 is not pressed, a negative determination is made in step S1104, and the process proceeds to step S1105.

  In step S1105, it is determined whether or not the scale ratio change button 27a has been pressed. Hereinafter, the scale ratio change button 27a is referred to as a 1000 km button 27a. When the 1000 km button 27a is pressed, an affirmative determination is made in step S1105, and the process returns to step S1001 in FIG. If the 1000 km button 27a is not pressed, a negative determination is made in step S1105, and the process proceeds to step S1106.

  In step S1106, it is determined whether or not the scale ratio change button 27b has been pressed. Hereinafter, the scale change button 27b is referred to as a 10 km button 27b. When the 10 km button 27b is pressed, an affirmative determination is made in step S1106, and the process proceeds to step S1201 in FIG. If the 10 km button 27b is not pressed, a negative determination is made in step S1106, and the process proceeds to step S1107.

  In step S1107, it is determined whether or not the time measured by the timer 11a has passed 5 seconds. If 5 seconds have elapsed, an affirmative determination is made in step S1107, and the process proceeds to step S1108. If 5 seconds have not elapsed, a negative determination is made in step S1107, and the process returns to step S1104. In step S1108, the buttons 24a to 24d, 25a, 25b, 27a, 27b and the scale 26b are deleted from the display screen of the display monitor 16. In step S1109, the timer 11a is reset.

  In step S1110, it is determined whether the detailed map 50 has been pressed. When the detailed map 50 is pressed, an affirmative determination is made in step S1110 and the process returns to step S1102. If the map 20 is not pressed, step S1110 is repeated.

  In step S1111, the detailed map 50 is scrolled so that the pressed position on the map is displayed at the center of the display screen. In step S1111, the timer 11a is reset.

  In step S1201 of FIG. 12, a detailed map 70 on which detailed weather information is superimposed is displayed on the display monitor 16. The detailed map 70 is enlarged and displayed in a larger scale than the detailed map 50. In step S1202, the buttons 24a to 24d, 25a, 25b, 27a, 27c and the scale 26c are superimposed on the detailed map 70 and displayed.

  In step S1203, the timer 11a is started. In step S1204, it is determined whether the detailed map 70 has been pressed. If the detailed map 70 is pressed, an affirmative determination is made in step S1204 and the process proceeds to step S1211. If the detailed map 70 is not pressed, a negative determination is made in step S1204 and the process proceeds to step S1205.

  In step S1205, it is determined whether or not the 1000 km button 27a is pressed. When the 1000 km button 27a is pressed, an affirmative determination is made in step S1205, and the process returns to step S1001 in FIG. When the 1000 km button 27a is not pressed, a negative determination is made in step S1205, and the process proceeds to step S1206.

  In step S1206, it is determined whether or not the scale ratio change button 27c has been pressed. Hereinafter, the scale ratio change button 27c is referred to as a 100 km button 27b. When the 100 km button 27c is pressed, an affirmative determination is made in step S1206, and the process proceeds to step S1101 in FIG. When the 100 km button 27c is not pressed, a negative determination is made in step S1206, and the process proceeds to step S1207.

  In step S1207, it is determined whether or not the time measured by the timer 11a has passed 5 seconds. If 5 seconds have elapsed, an affirmative determination is made in step S1207, and the process proceeds to step S1208. If 5 seconds have not elapsed, a negative determination is made in step S1207, and the process returns to step S1204. In step S1208, the buttons 24a to 24d, 25a, 25b, 27a, 27c and the scale 26c are deleted from the display screen of the display monitor 16. In step S1209, the timer 11a is reset.

  In step S1210, it is determined whether the detailed map 70 has been pressed. When the detailed map 70 is pressed, an affirmative determination is made in step S1210, and the process returns to step S1202. If the map 20 is not pressed, step S1210 is repeated.

  In step S1211, the detailed map 70 is scrolled so that the pressed position on the map is displayed at the center of the display screen. In step S1211, the timer 11a is reset.

The navigation device 1 according to the above-described embodiment of the present invention has the following operational effects.
(1) Of the maps 20, 50, and 70 on which weather information is superimposed and displayed, when a map 20 having a scale less than a predetermined scale is pressed, the pressed map area 20h is enlarged and displayed, and the map scale is greater than or equal to a predetermined scale. When the maps 50 and 70 are pressed, the pressed maps 50 and 70 are scrolled. Therefore, the weather information of a desired point can be displayed in detail on the map.

(2) When a map 20 having a scale smaller than a predetermined scale is pressed, the pressed map area 20h is displayed in an enlarged manner, and detailed weather information is also displayed if there is detailed information on weather information. Therefore, detailed weather information of a desired point can be displayed superimposed on the map.

(3) If the display screen is not pressed until a predetermined time has elapsed after the maps 20, 50, and 70 on which weather information is superimposed and displayed, the buttons 24a to 24d that are superimposed on the maps 20, 50 and 70 are displayed. 25a, 25b, and 27a to 27c were deleted. Therefore, when there is no need to operate the buttons 24a to 24d, 25a, 25b, and 27a to 27c, the user can view the weather information without being disturbed by the display of the buttons 24a to 24d, 25a, 25b, and 27a to 27c. it can.

(4) When the number of scales of the map that can be displayed by the navigation device 1 is set to seven, the number of scales of the map when the weather information is displayed is the map 20, the detailed map 50, and the detailed map 70. We reduced it to 3 levels. As a result, it is possible to prevent a detailed change in the scale of the map that is meaningless when viewing weather information. For example, even if the scale of the map can be changed by a factor of 2 or 1/2, the weather information displayed on the map does not change much, which is meaningless. Further, when trying to view global weather information from local weather information, if the number of scale scale levels is large, an operation for changing the map scale ratio becomes complicated. Therefore, as described above, when displaying weather information, it is convenient to reduce the number of scale scale steps.

The above embodiment can be modified as follows.
(1) When the map 20 having a scale smaller than the predetermined scale is pressed, the pressed map area is enlarged and displayed. However, when the map 20 having a scale smaller than the predetermined scale is pressed, the position on the pressed map may be displayed at the center of the display screen and enlarged regardless of the pressed map area. . Also in this case, the weather information of a desired point can be displayed in detail on the map.

(2) When the weather information icons 21a to 21e are pressed, detailed information on the weather information related to the icons 21a to 21e may be displayed on a pop-up screen. For example, when the icon 21e is pressed, information such as the central pressure of the hurricane, the traveling direction, the traveling speed, and the average wind speed may be displayed on a pop-up screen.

(3) The number of scale scale levels when displaying the weather information is three levels of the map 20, the detailed map 50, and the detailed map 70, but the number of scale scale levels that can be displayed by the navigation device 1 If it is less, it is not limited to the embodiment.

  The above description is merely an example, and the present invention is not limited to the above embodiment. For example, the present invention can be applied to electronic information processing capable of map display without a navigation function.

The correspondence between the elements of the claims and the embodiments will be described.
The display control means of the present invention corresponds to the control circuit 11, and the weather information reception means corresponds to the satellite radio reception unit 111. The execution means corresponds to the control circuit 11, and the instruction means corresponds to the control circuit 11, the touch panel 19 and the touch panel control unit 110. In addition, the above description is an example to the last, and when interpreting invention, it is not limited to the correspondence of the component of said embodiment and the component of this invention at all.

It is a block diagram which shows the structure of the navigation apparatus by one Embodiment of this invention. It is a figure for demonstrating the display screen of the display monitor displayed when a weather information display is selected from a menu not shown. It is a figure for demonstrating the display screen displayed when five seconds pass, after the map which displayed the weather information on a display monitor is displayed on a display monitor, without pressing a display screen. It is a figure for demonstrating the display screen displayed when 3 seconds have passed since the display screen of FIG. 3 was displayed. It is a figure for demonstrating operation which displays a detailed map from the map below a predetermined scale ratio. It is a figure for demonstrating the display screen displayed when five seconds pass, after the detailed map which displayed the weather information on a display monitor is displayed on a display monitor, without pressing a display screen. It is a figure for demonstrating the display screen when a detailed map with a larger scale rate than the detailed map of FIG. 5 is displayed. It is a figure for demonstrating the display screen displayed when five seconds pass, after the detailed map of FIG. 7 which displayed the weather information on a display monitor without being pressed is displayed on a display monitor. It is a figure for demonstrating operation for scrolling a detailed map. It is a flowchart for demonstrating the display process of the map which displayed the weather information in embodiment of this invention. It is a flowchart for demonstrating the display process of the map which displayed the weather information in embodiment of this invention. It is a flowchart for demonstrating the display process of the map which displayed the weather information in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 11 Control circuit 11a Timer 13 RAM
15 Image memory 16 Display monitor 18 Input device 19 Touch panel 110 Touch panel control unit 111 Satellite radio reception unit 112 Reception memory

Claims (6)

A display monitor with a touch panel;
Display control means for displaying a map on the display monitor;
Weather information receiving means for receiving weather information;
An instruction means for instructing a stepwise change in the scale ratio of the map displayed on the display monitor ,
Wherein the display control unit, the weather information acquired by the weather information receiving unit and displays overlaid with the map, when the map displayed on the display monitor is pressed, the scale of the map is less than the predetermined In the case of displaying the detailed map of the map, if the scale of the map is greater than or equal to a predetermined scale, scroll the map ,
The number of scales of the map that can be instructed by the instruction means when the display control means displays the weather information superimposed on the map is the number of steps of the map when the weather information is not displayed superimposed on the map. A map display device characterized by being smaller than the number of scale steps . The map display device according to claim 1,
When the map displayed on the display monitor is pressed, the display control means displays a detailed map of a map area corresponding to the pressed position when the scale of the map is less than a predetermined value. Map display device. The map display device according to claim 1,
When the map displayed on the display monitor is pressed and the scale of the map is less than a predetermined value, the display control means displays the pressed position at the center of the display screen of the display monitor. A map display device that displays a detailed map. The map display device according to any one of claims 1 to 3,
The map display device characterized in that the weather information includes detailed weather information for displaying on a detailed map. The map display device according to any one of claims 1 to 4,
The display control means displays a button together with the map on the display monitor,
When the button is pressed, the execution means for executing the process defined in the button,
The map display device, wherein the display control means erases the button when the display screen of the display monitor is not pressed until a predetermined time elapses after the button is displayed. A display monitor;
Display control means for displaying a map on the display monitor;
Weather information receiving means for receiving weather information;
And a instruction means for instructing a stepwise change of the scaling factor of the map displayed on the display monitor,
Stage number of the scale of the map that can be instructed by the instruction means in the case of displaying superimposed the weather information obtained by the weather information receiving means to the map, when not displayed over the weather information on the map map display device characterized by less than the number of stages of the scale factor of the map.

Images