JPH04319985A - Navigation device for mobile body - Google Patents

Abstract

PURPOSE:To substantiate navigation performance for a mobile body and provide much information by providing processing and display memory sections for each purpose to process data independently, and displaying a plurality of information at windows. CONSTITUTION:A section 106 for processing each type of data is provided with a positional data processing section 111 for separately processing information on a current position or the like on the basis of signal input from a position detecting section 105 and a data memory section 107, and a window processing section 112 having a display memory setting section 113 corresponding to the section 111 and a display control section 114 for controlling a window display area on the basis of key-in data. The window display of a display section 108 is thereby controlled. According to this system, a map can be displayed arbitrarily to an enlarged or reduced size, much information can be provided and data can be displayed on a real time basis.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention is mounted on a vehicle, etc., and is particularly useful for displaying a map of the current location of a moving object such as a moving vehicle, as well as a map and information of a destination, and a route to the destination. The present invention relates to a navigation device for a mobile body that displays guidance information provided in a superimposed manner on a display screen of a display unit.

0002

2. Description of the Related Art In order to display a current position and a destination, a structure as shown in FIG. 11 and a structure as shown in FIG. An in-vehicle map display device and a navigation device for a moving object are known as disclosed in Japanese Patent No. 1-152310. In the above devices, a window processing method is used as means for displaying information on the display device, and this method allows the user to A window display regarding the current position of the body and the destination is displayed on the display device.

FIG. 11 shows the basic structure of a conventional in-vehicle map display device disclosed in Japanese Patent Publication No. 2-46086. In FIG. 11, reference numeral 6 indicates display means having a main display area where a map for vehicle travel guidance is displayed, and a sub-display area; 1 indicates each of a plurality of points constituting the map relative to a predetermined coordinate origin; The storage means is composed of point coordinate data defined as a point in a coordinate system and point level data indicating a level corresponding to the scale of the displayed map, and stores both of these data.

[0004] 2 is first data for extracting point coordinate data of a point having point level data corresponding to the first scale from the storage means 1 when displaying the map at the first scale in the main display area. It is an extraction means. 5 is a first display control means for displaying a map constructed based on the point coordinate data extracted by the first data extraction means 2 in the main display area of the display means 6; 3 is a current position display moving means;
The current position of the vehicle is displayed on a map in the main display area, and this display is moved within the main display area.

[0005] 4 is point level data corresponding to the second scale among the points within the range that can be displayed in the sub display area including the vehicle current position at a second scale that is larger than the first scale. 7 is a second display control means for extracting the point coordinate data of a point having An enlarged map of the vicinity of the current vehicle position in the display area is constructed, and this enlarged map is displayed in the sub-display area of the display means 6. The in-vehicle map display device is composed of components numbered 1 to 7. Further, FIG. 12 shows display areas displayed on the display means 6, in which 6a represents a sub display area and 6b represents a main display area.

FIG. 13 shows the configuration of a conventional example disclosed in Japanese Unexamined Patent Publication No. 1-152310, which uses a position detection method based on global positioning system (GPS) positioning and a conventionally known free-standing navigation system. FIG.

In FIG. 13, 11 is a GPS receiving antenna, the output of which is connected to the GPS receiver 10.
12 is a vehicle speed sensor 8, a geomagnetic sensor 9, a GPS receiver 1
This is a position detection unit that receives signals regarding the moving distance of the moving object from zero, the moving direction, etc., and detects the current position of the moving object. 15 is a map data storage unit that stores predetermined map data; 14 is a key input unit that inputs required data and commands;
13 processes various signals such as the various signals and data;
The data processing section 16 calculates the required output data, and the display section 16 displays a map regarding the current position of the mobile object and the destination of the mobile object.

[0008] This navigation device for a mobile body is composed of components numbered 8 to 16, and includes the data processing section 1
3 includes a window processing unit 13a, and when the current position of the moving object and the destination of this moving object are not included in the same display screen, a window is provided in a part of the display screen to display the A map including the destination can be displayed in the window.

Next, the operation of the conventional in-vehicle map display device will be explained with reference to FIGS. 11 and 12. A map based on point coordinate data extracted from the storage means 1 in accordance with point level data corresponding to the first scale is displayed in the main display area 6b of the display means 6. On the other hand, the sub-display area 6a includes the vicinity of the vehicle's current position displayed on the map in the main display area 6b, that is, the vehicle's current position at a second scale larger than the first scale. The displayable range is displayed as an enlarged map based on point coordinate data extracted according to the second scale and corresponding point level data.

Next, the operation of the mobile navigation device will be explained with reference to FIG. The key input unit 14 activates the mobile navigation device,
Next, as position information regarding the current position of the mobile object, a GPS signal is taken in as a satellite radio wave from the GPS receiving antenna 11, processed by the GPS receiver 10, and sent to the position detection unit along with the vehicle speed sensor 8 and the geomagnetic sensor 9 of the mobile object. At the same time, the map data including the current position of the mobile object is retrieved from the map data storage section 15 and displayed on the display section 16. Here, if the destination is not set in the area set regarding the destination and displaying the current position of the mobile object, the data processing unit 1
By the function of the window processing unit 13a in 3, a window is set on a part of the display screen displaying the current position of the moving object, and a map including the destination of the moving object is displayed within this window. It becomes like this. Furthermore, when displaying a window, it is also possible to set the window in a portion along the moving direction of the moving object.

[0011]

[Problem to be Solved by the Invention] Since the conventional device is configured and operates as described above, the main display area displays a relatively wide map, and the sub display area displays the current map. A condition is determined that an enlarged view of the main display area is displayed together with the position information.

[0012] Also, regarding the window display of the destination, if there is a destination outside the area where the current position is displayed relative to the current position, the window is displayed in the direction of the destination. With only two scales displayed, there is a limit to the degree of freedom and expandability of the content displayed on the display device.

[0013] Also, regarding the information regarding the route to the destination, there are problems such as the display method being an interrupt display on the screen (screen super), and the provision of route information not being able to be processed in real time depending on the speed of the moving object. The point was considered.

For example, in FIG. 14, point X represents the current position of the moving object, 61 represents the main display area, and 62 represents the sub display area. When displayed in the sub-display area 62, signal processing becomes complicated depending on the traveling speed and azimuth of the moving body, and there is a problem in that the displayed contents must be frequently updated.

Further, in FIG. 15, 63 is a map of a certain area stored in memory, 64 is a display area on a display device, the X point in the figure is the current position of the moving body, and the Y point is the set purpose. On the ground, point Y represents a destination outside the display area 64, and although point Y is displayed in a window display, it is displayed at a certain scale, so it is displayed at a different scale.

Furthermore, the Z point shown in the figure represents the destination set within the map display area 64, and at this time,
When there is a destination within the map display area 64 displayed on the display device, there is a problem in that detailed information regarding the destination is not displayed using a display method such as a window display. .

[0017] The present invention was made to solve the above-mentioned problems, and various data processing units are provided with information on each condition (current position display, destination display, information regarding route guidance relative to the own vehicle position, etc.). With the provision of a processing section (provided by ), a display memory and display area for various window processing, and a display control section, a variety of window processing can be performed and processing can be performed independently for each condition. As a result, the amount of information that can be displayed on a single screen increases, and the aim is to expand the functionality and improve processing speed in mobile navigation by providing a wealth of information to vehicle drivers. In addition to the above object, another object of the present invention is to obtain a navigation device for a mobile body that performs efficient and rational display processing in expanding the function of window processing.

[0018]

[Means for Solving the Problems] A navigation device for a mobile object according to the present invention reads out data such as map data stored in a data storage section, and uses the own vehicle position data detected by a position detection section to drive various data processing sections. In a device that processes data and displays it on a display, the various data processing units include a position data processing unit that has an independent memory for each processing item, and a window processing unit that has a display memory setting unit and a display control unit. By controlling the display of the display unit, it is possible to display two types of maps with different scales on one display screen, and furthermore, the scale of the displayed map can be arbitrarily varied and replaced. This allows maps of different scales to be combined and displayed in a window on the display unit.

[0019] Furthermore, in the navigation device for a mobile object, the various data processing units read out guidance information from the own vehicle position to a predetermined distance during the route from the data storage unit, and display the information in a window on the display unit. be.

[0020]

[Operation] In the mobile navigation device according to the present invention, the display memory setting section of the window processing section is arranged in the various data processing sections, and the data processing necessary for displaying various windows is carried out independently in the position data processing section. ,
It is now possible to change the scale of a map related to the current location of the window display, an arbitrarily set map that does not include the current location, and a map surrounding the destination.

[0021] Furthermore, when a map relating to the current position of a moving body is displayed in a window with a different scale due to the above-mentioned action, even if a map at a second scale is displayed in a window on the map display at the first scale, the above-mentioned action does not result in the same effect. Because each display area is processed independently, it has become possible to exchange displays in which a map display at the first scale is displayed in a window on a map display at the second scale.

[0022] Also, the effect is similar to the above-mentioned effect regarding the window display of the destination, and the scale can be freely changed, and in addition, it has become possible to display the service information, etc. of the destination in a window that has been synthesized. .

[0023] Therefore, as a window display, a map display related to the current position, a map display around the destination, an arbitrarily selected map display that does not include the current position, etc. can be displayed in a combination according to the operator's purpose. is now possible.

[0024] Furthermore, the navigation device for a mobile object according to the present invention is similar to the window display of information regarding the route to the destination, and since processing is performed independently for each display area, the navigation device for a mobile object It is possible to search for a target building or the like relative to the current position and sequentially display guidance information in a window on the own vehicle position display.

[0025] Therefore, from the above-mentioned effect, it has become possible for the operator of the moving body to operate and set the desired display content using the preset window display area.

[0026]

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 an embodiment of the present invention, and the configurations 101 to 109 are similar to those of the conventional device, but the internal configuration of the various data processing sections 106 is distinctive.

In FIG. 1, 101 is a geomagnetic sensor that detects geomagnetism, 102 is a vehicle speed sensor that detects vehicle speed, and 1
03 is a GPS receiver, which inputs a signal received by an antenna 104 for receiving GPS radio waves, and is connected, together with a geomagnetic sensor 101 and a vehicle speed sensor 102, to a position detection unit 105 that is a vehicle position detection unit of a mobile object. ing.

Reference numeral 106 denotes a data processing unit that processes various signals from the data storage unit 107 and the position detection unit 105, which are configured to store various information such as destination and route guidance information. It has a position data processing section 111 having an independent memory and a window processing section 112 that displays various windows. This window processing section 112 has a display memory setting section 113 corresponding to the position data processing section 111, and the window processing section 1
12 is also provided with a display control section 114 that controls window display contents.

The output of the position detecting section 105 is connected to a position data processing section 111 inside the various data processing section 106, and the map data stored in the data storage section 107 and various data are collated by the position data processing section 111. be done. Furthermore, the data that has been collated here is output to the window processing unit 112, the display area is determined by the display memory setting unit 113, and the data is controlled by the display control unit 114.
It is output to the display section 108. Further, 109 is a key input unit for inputting required data and commands, and is connected to the various data processing unit 106.

FIG. 2 is a flowchart for explaining the operation in this embodiment. Further, FIG. 3 is an example showing the allocation of display areas for window display in the window processing unit 112 of this embodiment, and reference numeral 31 in the figure indicates a display area 31 to be displayed at the scale of the first map of the current position map. , 32 represents a display area ■ that displays the current position map at the scale of the second map, 33 represents a display area ■ that displays a map of the destination, and 34 represents a display that displays information regarding the route to the destination. It is a diagram showing area ■.

FIGS. 4 to 7 are diagrams showing examples of display screens of the display unit 108 in this embodiment, in which the X point represents the own vehicle position, and the Y point represents the set position of the vehicle. Represents a destination. Also, a in Figure 7 relates to the set destination,
This represents one piece of guidance information selected relative to the own vehicle position, and b represents the direction of the destination. The above are diagrams showing window display and window processing in mobile navigation.

Next, window display and window processing operations of the mobile navigation device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 7.

To operate the moving body of a vehicle, for example, the apparatus of the embodiment is activated by operating a start key provided on the key input section 109 (step S10). Next, the operator uses the key input unit 109 to set the position of the own vehicle and the destination, which the operator has recognized in advance (step S11).

Here, when the operator sets the own vehicle position, the GPS signal from the GPS receiver 103 is detected by various sensors capable of receiving GPS signals and moving objects, the geomagnetic sensor 101 and the vehicle speed sensor 102. The position detection unit 105 detects the position of the own vehicle by combining the signals from the be done.

Next, section A of the position data processing section 111 in the various data processing section 106 performs first priority map display processing, and also displays the detected position data in parallel with section A. Similar processing is performed in the section.

Next, the data processed by the position data processing unit 111 is stored in the display memory setting unit 113 corresponding to each of the window processing units 112, and is stored in part A as the scale of the first priority map and in part B as the scale of the first priority map. is stored in the display memory as a second scaled map, and a map relating to the vehicle's position is displayed as the first scaled map in display area 3 in FIG. 3 as shown in FIG. 4 (step S12).

Next, it is determined whether or not to display a window by the operator's operation of the key input unit 109 (step S
13) is performed, and then it is determined whether or not to display a map related to the current location in a window (step S14). If window display is selected, the second scale map set in the display memory is displayed. The display is controlled by the display control section 114 of the window processing section 112 and displayed in a window (step S15).

Here, as shown in FIG. 5, the first reduced scale is displayed in the display area (2), and the second reduced scale is displayed in the display area (2). In FIG. 3, they are displayed in display areas 31 and 32. In addition, as mentioned above, each display area has its own data processing and display memory, so the map displayed in the window in display area ■ has the function of enlarging/reducing the map (
Step S22).

Next, in the process of step S14, if window processing regarding the map of the current location is not performed, the process proceeds to window processing regarding the destination. If the destination has been set in step S11, the process is performed in part C of the position data processing unit 111, and similarly, information on buildings, etc. related to the route is provided from the destination set in part D and the own vehicle position. The information is calculated relatively and stored in the data storage unit 1.
The window processing unit 112, which extracts and processes the necessary information from 07, determines whether or not to display a map related to the destination in a window (step S16).

With this, when the operator selects the map window display related to the destination by key input, the map related to the destination is displayed in the display area 33 of FIG. 3, as shown in FIG.
(Step S17).

[0041] Also, similar to the window processing regarding the map of the current location, the map displayed in the window in the display area (3) has a function of enlarging/reducing the map (step S23).

[0042] Next, in the case where the map display related to the destination is not selected in the process of step S14 and the destination has been set in step S11, it is determined whether or not to display the data related to the route to the destination in a window. A determination is made (step S18). As a result, when window display is selected, information regarding the route to the destination is displayed in display area 34 in FIG. 3, and for example, as shown in FIG. A pictorial map b representing the distance and direction up to is displayed in the display area 31 in FIG. 3 (step S19).

[0043] Here, if the display is not performed for all windows, navigation is performed by the process of step S20 in which the current map position is displayed only in the display area (2). At this time, the overall process returns to step S13 and waits for window display selection, and the display area
The location of your vehicle will be displayed.

[0044] Furthermore, the display time of the displayed window screen is determined for a certain fixed period of time, and the window display can be automatically canceled.

[0045] In the case of enlarging/reducing in step S22,
After carrying out the enlargement/reduction processing function, the process returns to step S15, and the image is displayed in the display area (2) at an arbitrary first reduction specified by key input or the like. If it is not enlargement/reduction, the process advances to step S21.

In the case of enlarging/reducing in step S23, the enlarging/reducing processing function is performed and step S17 is performed.
Return to , and display in the display area ■ with the specified second reduction. If not enlarged/reduced, step S2
Go to 1.

[0047] Even after the process of step S19, step S2
1, waits until the window display ends, and returns to step S13 after waiting.

Next, a second embodiment of the present invention will be described. In the first embodiment, when displaying a window, the display area 31 in FIG. 3 is the base display area, and the other display areas ■, display area ■, and display area ■ are treated as sub display areas. However, the location data processing unit 111 in the block diagram of FIG. 1 processes the memory that is evenly allocated when processing data such as the current location map, destination map, and information regarding route guidance to the destination. Therefore, it is also possible to display a destination map in the display area (■).

In particular, regarding the current position, the map display in the display area (■) and the display area (■) can be freely switched between maps of different scales, and the window display of the destination can also be changed from the display area of the first embodiment. It is also possible to display a map related to the vehicle's position in the window of the display area (2) by displaying it in the base display area (2).

Furthermore, according to the second embodiment, if the operator desires a map other than the own vehicle position map, even when displaying the own vehicle position map and the map around the destination, FIG.
An arbitrarily selected map display is displayed in a window, allowing the operator to search for a desired location. Figure 8 (a
), the display screen 108 of the current position map with point X
a and a window display screen 108b of a map other than the arbitrarily selected vehicle position. In FIG. 8(b), a display screen 108c of a map related to the area around the destination where point Y is located and a window display screen 1 of a map other than the area surrounding the arbitrarily selected destination.
There is 08d.

Furthermore, according to the second embodiment, when the destination map is displayed in a window on the own vehicle position map display, when the destination and the own vehicle approach a certain distance range, the window is automatically displayed. It is also possible to cancel the window display and select and display an area where the location of the own vehicle and the location of the destination can be confirmed on a single map display.

Next, a third embodiment of the present invention will be described. In mobile navigation devices that perform window display, these mobile navigation devices are used as one function of in-vehicle information equipment, and integrate functions such as in-vehicle audio-visual, air conditioner, telephone, etc. other than the mobile navigation device. Displaying on a single display device is conventionally known. However, the feature of the third embodiment is that it displays various windows, and by having a data processing unit and a window processing unit that process in-vehicle audio visuals, air conditioners, telephones, etc., it is possible to display the current position, It is also possible to display information other than the mobile navigation device in a window on the destination display.

For example, as shown in FIG. 9, a screen 108f of a map of the current position of the moving body at point X can be displayed in a window on a screen 108e showing the status of the air conditioner.

[0054] Further, the own vehicle position display and destination display can be displayed in a window at a place where information other than a mobile navigation device such as an in-vehicle audio visual, an air conditioner, or a telephone is displayed.

For example, as shown in FIG. 10, a radio reception frequency and channel display 108h may be displayed on a screen 108g displaying a map of the vehicle's position at point X. Therefore, by combining the display of a mobile navigation device and an in-vehicle information device, various information held by the vehicle can be displayed on a single screen, and operations can be simplified and functionality enhanced.

By the way, in the above description, the present invention has been described in the case of displaying a window of information regarding the current position, destination, and route to the destination of a mobile navigation system. Needless to say, it can be used as a display means.

[0057]

[Effects of the Invention] Since the present invention is constructed as described above, it produces the following effects.

When displaying a window, since the configuration shown in FIG. 1 is used, the various data processing sections 106 include a position data processing section 111 and a display memory setting section 112 for each purpose of display processing. Therefore, especially regarding the display of the own vehicle position map, the processing speed from data processing to display becomes faster, and display processing can be performed in real time with respect to the speed of the moving object.

[0059] Furthermore, with the above configuration, it becomes easy to display the own vehicle position map of different scales in a window, and it is also easy for the operator of the moving object to estimate the position and whereabouts of the moving object. As a result, smooth mobile navigation can be realized.

[0060] Also, even when the destination is set,
The destination is displayed in a window display, and the map around the destination can be enlarged or reduced, so the relationship between the destination and the current location and the location of the destination can be easily estimated.

[0061] In addition to the above effects, by displaying an arbitrarily set map that does not include the own vehicle position map display in the own vehicle position map and the map around the destination in a window, it is possible to view maps of other areas while navigating. This provides a synergistic effect for the operator in that he or she can check the own vehicle position map and the searched map at the same time.

[0062] Similarly, when displaying information regarding route guidance to a destination, the speed of data processing and display is improved, so route information can be processed in detail relative to changes in the vehicle's position. This can provide a lot of information to the operator of the mobile object. Furthermore, since we have secured a display area commensurate with this, we can provide more accurate and detailed route information.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a mobile navigation device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the first embodiment of this invention.

FIG. 3 is a diagram showing a display area in a display memory setting section showing a first embodiment of the invention.

FIG. 4 is a diagram showing a display example in the first embodiment of the invention.

FIG. 5 is a diagram showing a display example in the first embodiment of this invention.

FIG. 6 is a diagram showing a display example in the first embodiment of this invention.

FIG. 7 is a diagram showing a display example in the first embodiment of this invention.

FIG. 8 is a diagram showing a display example in a second embodiment of the invention.

FIG. 9 is a diagram showing a display example in a third embodiment of the present invention.

FIG. 10 is a diagram showing a display example in a third embodiment of the invention.

FIG. 11 is a block diagram showing the functional configuration of a conventional in-vehicle map display device.

FIG. 12 is a diagram showing a display area in a conventional window display.

FIG. 13 is a block diagram showing the configuration of a conventional mobile navigation device.

FIG. 14 is a diagram showing a conventional display example.

FIG. 15 is a diagram showing a conventional display example.

[Explanation of symbols]

105 Position detection section 106 Various data processing section 107 Data storage section 108 Display section 109 Key input section 111 Position data processing section 112 Window processing section 113 Display memory setting section 114 Display control section 31 Current position map A display section First scale ( Display area ■) 32 Current position map B display section Second scale (display area ■) 33 Destination map display section
(Display area ■) 34 Information display section regarding the route to the destination (display area ■)

Claims (2)

[Claims] [Claim 1] A key input section for inputting required data and commands, a data storage section for storing various information such as predetermined map data, destinations, route guidance information, etc., and a position for detecting the current position of a moving object. In the navigation device for a mobile body, the navigation device includes a detection unit, a various data processing unit that processes the various signals, and a display unit that displays a map related to the current position of the mobile body, and the various data processing unit processes the various signals. It has a position data processing section that has an independent memory for each item, a display memory setting section corresponding to the position data processing section, and a display control section that controls window display contents, and a window processing section that performs various window displays. comprising: displaying two types of maps having different scales, a first scale and a second scale, on one display screen of the display unit by controlling the display of the display unit; A movement characterized in that the scale of the map on the screen can be arbitrarily varied and replaced, and the map of the first scale and the second scale can be combined and displayed in a window on the display section. Body navigation device. [Claim 2] A key input unit for inputting required data and commands, a data storage unit for storing various information such as predetermined map data, destinations, route guidance information, and a position for detecting the current position of the moving object. A navigation device for a mobile body comprising a detection unit, various data processing units that process data of the various signals, and a display unit that displays a map regarding the current position of the mobile body, etc. In the display related to guidance, the various data processing units
The current position of the mobile object and the route it is traveling to the destination,
reading guidance information of target buildings, etc. from the current position of the moving object to a predetermined distance from the data storage unit, and displaying the guidance information in a window on the screen of the display unit that displays the current position; A navigation device for mobile objects with special features.