JP3556868B2 - Navigation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation device mounted on a vehicle such as an automobile and displaying a road map on a screen.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, navigation devices that change the map display according to the date and time are known.
As such a navigation device, for example, in Japanese Patent Laid-Open No. 9-31623, it is obtained by monitoring the current date and time and manipulating the color information of the image so as to obtain a hue according to the current time, season or month and day. An image is displayed that improves the degree of freedom in expressing a map image by displaying the image based on the color information and displaying the map image with a sense of time or season.
[0003]
Further, in JP-A-10-267668, the image display means reads out the image data stored in the image storage means in accordance with the date and time and displays it together with the image of the road map. It describes that an automatic image display according to the transition, an image icon display according to a specific date such as a holiday, and a display with a sense of the season.
[0004]
Japanese Patent Application Laid-Open No. 11-23297 describes an image that expresses a sense of season by displaying an image expressing a sense of season and a season mark together with map information based on time information.
[0005]
[Problems to be solved by the invention]
However, since the conventional navigation device performs a display with a sense of season in consideration of the time information on the map display screen based on the current time information, the time information is detected when the navigation device is started up. Until then, it was impossible to display with a sense of the seasons.
[0006]
The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a navigation device that can quickly display an opening screen with a seasonal feeling.
[0007]
[Means for Solving the Problems]
The navigation device according to the present invention comprises a map data storage means for storing map data, a current position detection means for detecting a current position, and a map on the display means based on data from the map data storage means and the current position detection means. And a control means for displaying, which displays an opening screen based on information relating to the time stored when the power is turned off the last time after the navigation device is turned on.
[0008]
In addition, a display based on the time information updated after power-on is additionally displayed on the opening screen.
[0009]
Further, the opening screen displays a preset display screen, and then displays a display screen based on information about the time stored when the power is turned off the last time.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
An embodiment of the present invention will be described below.
FIG. 1 is a block diagram showing a functional configuration of a navigation apparatus according to Embodiment 1 of the present invention. In FIG. 1, 11 is a map data storage means for storing map data such as road information of a road on which the vehicle travels, and 12 is a current position for detecting the current position of the vehicle from output data of a GPS receiver and various sensors. It is a detection means. Reference numeral 13 denotes system control means for reading out necessary data from the map data storage means 11 and taking in the current position of the vehicle from the current position detection means 12 to control the operation of the entire system of the navigation device. The read-only memory (hereinafter referred to as “ROM”), the rewrite memory (hereinafter referred to as “RAM”), and the like as necessary.
[0011]
14 is a display control means for generating a display signal for displaying a road map, a current position mark, a destination mark, etc. according to an instruction from the system control means 13, and 15 is a display signal from the display control means 14, The display means displays a road map, a current position mark, a destination mark, and the like. Here, the power supply of the navigation device as long as it is supplied from the automobile battery, ON / OFF of the power source, or provided with a power switch to the navigation system, the car key switch is ON / OFF You may do it.
[0012]
Reference numeral 16 denotes a time data storage unit for storing time data. When the navigation device is powered on, the GPS receiver 22 (described later) writes time information extracted from the GPS signal as needed, and always stores the latest time information. Even when the navigation apparatus is turned off, the stored time information is held until the power is turned on again. In order to hold the memory when the power is turned off, a backup power source such as an internal power source may be used, or a non-volatile memory may be used.
[0013]
Here, the date / time data held in the GPS receiver will be described.
If the GPS receiver has a calendar clock in its interior and has received GPS satellite data even once, by using the time data included in the GPS satellite data, the time is set in the calendar clock, Thereafter, the time data can be obtained at all times, and the calendar clock in the GPS receiver is directly connected to the battery power source, so that it operates regardless of the key switch of the automobile.
However, at the initial stage of the opening screen display, since the start-up process of the GPS receiver 22 by the system control means 13 is not completed, the time data cannot be read from the calendar clock in the GPS receiver 22 and used.
Therefore, when the navigation apparatus is powered on, the season opening screen is displayed using the time data stored in the time data storage unit 16. After the start-up process of the GPS receiver 22 by the system control means 13 is completed, the time data is read from the calendar clock in the GPS receiver 22, and the date display is additionally displayed on the opening screen.
Note that the calendar clock in the GPS receiver is started up by the system control means 13 and can receive and use the radio waves of the GPS satellites, depending on the time data included in the GPS satellite data, as needed. The calendar clock keeps operating even when no power is supplied to the navigation device since the calendar clock is directly connected to the battery power source.
[0014]
Reference numeral 17 denotes an opening screen data storage unit that stores opening screen data, and stores various data for the opening screen. For example, when the opening screen is displayed differently in the four seasons, the background display data, the background display data of each of spring, summer, autumn and winter, the display data displayed on the background, etc. can be stored. That's fine.
Here, the opening screen data is stored in the system control means without being stored in the map data storage means 11 such as a CD-ROM or DVD-ROM so that it can be quickly displayed when the navigation apparatus is powered on. Can be processed in parallel with the process of reading map data to display a map when the navigation device is started up, and the time required for reading from a CD-ROM or DVD-ROM can be reduced. It is possible to realize a prompt opening screen display.
[0015]
Various data for the opening screen stored in the opening screen data storage unit 17 will be described below.
(1) Initial background data: This is the data that becomes the background of the initial screen (similar to the background data of the initial screen display stored in the initial screen data storage unit 18 to be described later). The display is simple. Specifically, display using the initial background data and title display data described below may be performed.
(2) Title display data: Display data of a title logo such as a product name of a navigation device that is always displayed on the opening screen. This display may not be always displayed while the opening screen is displayed, but may be displayed only when necessary.
(3) Spring / autumn background data: Background data for spring / autumn. In spring and autumn, the display data of the background is designed to specify a palette for the display color in order to reduce the amount of data. By switching the palette, only the display color is different between spring and autumn. ing. For example, in the spring opening screen as shown in FIG. 3 and the autumn opening screen as shown in FIG. 5, the background is displayed by changing only the color of the same display data.
(4) Summer / winter background data: Similar to the above-mentioned spring / autumn background data, the display data of the background in summer and winter is specified as the display color, and the summer can be changed by switching the palette. Only the display color is different between winter and winter.
(5) Spring / autumn display data: Display data overwritten on the above-mentioned spring / autumn background data. This data is stored separately for spring and autumn, and expresses the sense of season more. It is used for this purpose. For example, in the case of spring, cherry blossom branches are displayed, and in the case of autumn, maple branches with colored leaves are displayed. In this way, the seasonal feeling that cannot be expressed by simply changing the display color, such as the background data, can be expressed by having display data unique to spring and autumn.
In addition, it is also possible to use moving image data in order to express a more seasonal feeling. For example, on a spring screen, a moving image showing a cherry petal fluttering from the top of the screen may be displayed, and on an autumn screen, a moving image showing a maple leaf dancing similarly may be displayed.
{Circle around (6)} Summer / winter display data: In a manner similar to the above-described spring / autumn display data, the background data is overwritten and displayed to express a sense of the season.
Here, the summer display data is only the video data (gull display), and the winter display data is fixed display data (forest display) and video data (rabbit display). The summer fixed display data is omitted without losing the sense of the seasons, and the amount of storage memory is reduced.
[0016]
Reference numeral 18 denotes an initial screen data storage unit for storing display data of an initial screen displayed at the very beginning of the display of the display means. When the display means is energized, an initial screen different from the opening screen is displayed. Only the initial screen is stored separately from the system control means 13 for quick display. Thereby, even if the processing of the system control means 13 is delayed, the initial screen can be displayed on the display means 15, and the user's anxiety due to nothing being displayed can be eliminated. . This initial screen is the same display as the above-described display using the initial background data (1) and the title display data (2). (1) Display using initial screen data → (2) Opening screen Smooth transition from the initial display screen to the opening screen by displaying the data in the order of initial background data (1) and title display data (2) → (3) Opening screen in accordance with the four seasons It can be done.
[0017]
FIG. 2 is a block diagram showing a hardware configuration of the navigation apparatus according to the first embodiment. In the figure, 20 is a compact disk ROM (hereinafter referred to as CD-ROM) corresponding to the map data storage means 11 in FIG. 1, and 21 is a CD-ROM driver for driving the CD-ROM 20. 22 is a GPS receiver that detects the current position of the vehicle by receiving radio waves from GPS satellites, 23 is an azimuth sensor that detects the azimuth of the vehicle, and 24 is a distance sensor that detects the moving distance of the vehicle. 1 corresponds to the current position detecting means 12 shown in FIG.
[0018]
Reference numeral 25 denotes a control unit that performs various operations and controls the entire apparatus. The system control means 13 and the display control means 14 shown in FIG. 1 are realized as functions of the control unit 25, respectively. Reference numeral 26 denotes a liquid crystal display on which display data from the control unit 25 is displayed, and corresponds to the display means 15 in FIG. An input switch 27 is used by the user to input various instructions such as designating a map scale and setting a destination.
[0019]
In the control unit 25, 251 is a central processing unit (CPU) of the control unit 25, 252 is its ROM, and 253 is its RAM. Reference numeral 254 denotes a display control unit that performs display control of the liquid crystal display 26 that is the display unit 15, and 255 denotes an input / output device (I / O) that performs input / output between the control unit 25 and the outside.
[0020]
Further, the liquid crystal display 26 is provided with a display control unit 261, which realizes the function of the display control means 14 together with the display control unit 254, and an initial screen data storage unit 18 is provided. .
Although not shown, a power supply line is provided to supply power from the battery of the automobile so that the power can be turned on when the accessory of the automobile is turned on or when the ignition is turned on (that is, the power is turned on by the key switch of the automobile). To enter). Here, the navigation device itself may be provided with a power switch.
[0021]
Next, the opening screens of the four seasons of spring, summer, autumn and winter will be described with reference to FIGS.
FIG. 3 is an example of a screen display showing a spring opening screen. Reference numeral 31 denotes a background displayed in a cherry blossom-like color, and reference numeral 32 denotes a branch of cherry blossom displayed on the background 31. Reference numeral 33 denotes a moving image expressing a cherry blossom petal fluttering down from the top of the screen, 34 is a title logo indicating the product name, and 35 is additionally displayed by updated time data. Date / holiday display.
[0022]
FIG. 4 is a screen display example showing a summer opening screen, 41 is a background on which a summer sea and sky are displayed, and 42 is a seagull flying away from the left to the right of the screen. A moving image to be expressed, 43 is a title logo indicating a product name, and 44 is a date / holiday display additionally displayed based on updated time data.
In this summer opening screen, the fixed image pasted on the background is omitted to reduce memory.
[0023]
FIG. 5 is an example of a screen display showing an autumn opening screen, 51 is a background displayed in autumn colors, and 52 is a maple branch overwritten on the background 51. Reference numeral 53 is a moving image expressing a maple leaf fluttering down from the top of the screen, 54 is a title logo indicating the product name, and 55 is additionally displayed by updated time data. Date / holiday display.
In this autumn opening screen, the background is different from the spring background only in display color, and the memory is reduced.
[0024]
FIG. 6 is an example of a screen display showing a winter opening screen. Reference numeral 61 denotes a background on which a winter snowy landscape and a light cloudy sky are displayed. Reference numeral 62 denotes an overwriting display on the background 61. It is a forest. Also, 63 is a video representing a white rabbit running away from the left side of the screen to the right, 64 is a title logo indicating the product name, and 65 is additionally displayed with updated time data. Date / holiday display.
In this winter opening screen, the background is different from the summer background only in display color, so that memory is reduced.
[0025]
In addition, the date / holiday display may be other information related to that day other than holidays such as Christmas and a house candy. For example, the user's birthday is entered by the user and stored in the memory. , A wedding anniversary or the like may be displayed.
[0026]
Next, the operation will be described with reference to FIG.
First, in S701, the key switch is turned on to turn on the power. In S702, the initial screen is read from the initial screen data storage unit 18, and the initial screen is displayed. Next, in S703, the four seasons are determined from the time data at the time of the previous OFF stored in the time data storage unit 16 (at this time, if data indicating the four seasons is stored directly in the time data storage unit 16, Processing is faster). Furthermore, in S704, an opening screen corresponding to the determined four seasons is read from the opening screen data storage unit 17 and displayed on the display means 15, and a moving image is also displayed at the same time. Here, in S705, it is not necessary to display the title again for those that display the title from the initial screen as described above. However, if the title is not displayed on the initial screen, the title is displayed here.
[0027]
Next, in S706, it is confirmed whether or not reading of the current time data from the GPS receiver 22 is completed (the GPS receiver 22 is started at the same time as the power is turned on), and if time detection is completed, In S707, the current time data is set in the time data storage unit 16. Then, based on the current time data, a date / holiday (holidays can be determined from the date) is additionally displayed at the bottom of the opening screen. Next, in S709, the moving image is displayed again, and in S710, it is confirmed whether or not the map display preparation is completed. Then, in S711, a map display which is a screen of a normal navigation device is performed, thereby displaying the opening screen. Operation ends [0028]
Further, the four season opening screens may be switched between a day screen and a night screen in accordance with the switching of the light switch. For example, if the screen for summer night is a screen in which a crescent moon is displayed in the night sea and a fireworks display as a moving image, a display suitable for summer night can be obtained.
[0029]
In the navigation device described in this embodiment, after the power is turned on by the key switch ON, the time data storage unit 16 stores information on the time, such as season, date, time, etc. stored at the time of the previous power-off. Since the selected opening screen is displayed on the basis, the (appropriate) opening screen suitable for the season, date, time, etc., without waiting until the time information is read by setting the GPS receiver, It can be displayed quickly.
[0030]
In addition, after the power is turned on, the display of the time, such as the date, holidays, and anniversaries, based on the current time that the calendar clock in the GPS receiver is updated from time to time, such as the previous season and date stored at the previous OFF Since it is additionally displayed on the opening screen displayed by data, the date based on the current time is displayed instead of the time at the previous OFF time, and the current time is accurately communicated to the user. be able to.
[0031]
Furthermore, the opening screen displays a constant display screen that does not change according to the preset current time, and is displayed on the screen for the time being to let the user know that the navigation system has been turned on. After that, the display screen based on the information related to the time stored when the power was turned off the last time is displayed. Therefore, the display screen is not displayed until the display screen based on the information related to the stored time is displayed. It is possible to display the information on the screen, giving a sense of security to the user.
[0032]
In the above-described embodiment, description has been given of displaying an opening screen suitable for the season based on information indicating time, but other opening screens corresponding to the day of the week, month, year, etc. may be displayed. .
In addition, instead of the opening screen / simultaneously, an opening sound may be played, and this opening sound may be changed according to the season, day of the week, year, month, etc., according to information indicating time.
Further, the image information that the user has photographed / created by himself / herself may be used for all / part of the opening screen.
[0033]
【The invention's effect】
The navigation device according to the present invention displays an opening screen based on information about the time stored when the power is turned off the last time after turning on the power. It can be displayed quickly.
[0034]
Further, since the display based on the time information updated after the power is turned on is additionally displayed on the opening screen, the display based on the current time can be added to accurately tell the user the current time.
[0035]
Furthermore, the opening screen displays a preset display screen, and then displays a display screen based on information related to the time stored when the power was turned off last time. It is possible to display on the screen until the display screen based on the information is displayed, which can give the user a sense of security.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a functional configuration of a navigation device according to Embodiment 1 of the present invention.
FIG. 2 is a block diagram showing an example of a hardware configuration of a navigation device according to Embodiment 1 of the present invention.
FIG. 3 is a display example of a spring opening screen according to the first embodiment of the present invention.
FIG. 4 is a display example of a summer opening screen in Embodiment 1 of the present invention.
FIG. 5 is a display example of an autumn opening screen according to Embodiment 1 of the present invention.
FIG. 6 is a display example of a winter opening screen according to the first embodiment of the present invention.
FIG. 7 is a flowchart showing the operation of the first embodiment of the present invention.
[Explanation of symbols]
16: Time data storage unit, 17: Opening screen data storage unit, 18: Initial screen data storage unit

Claims (3)

Map data storage means for storing map data, current position detection means for detecting the current position, and control means for displaying a map on the display means based on data from the map data storage means and the current position detection means A navigation device, wherein an opening screen based on information relating to a time stored when the power is turned off the last time is displayed after the navigation device is turned on. The navigation apparatus according to claim 1, wherein a display based on time information updated after power-on is additionally displayed on the opening screen. 3. The opening screen displays a preset display screen, and then displays a display screen based on information related to a time stored when the power is turned off the last time. Navigation device.

Images