US20020032521A1 - Terminal apparatus for downloading map - Google Patents
Terminal apparatus for downloading map Download PDFInfo
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- US20020032521A1 US20020032521A1 US09/949,924 US94992401A US2002032521A1 US 20020032521 A1 US20020032521 A1 US 20020032521A1 US 94992401 A US94992401 A US 94992401A US 2002032521 A1 US2002032521 A1 US 2002032521A1
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- Prior art keywords
- map
- terminal apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/38—Electronic maps specially adapted for navigation; Updating thereof
- G01C21/3885—Transmission of map data to client devices; Reception of map data by client devices
- G01C21/3896—Transmission of map data from central databases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3679—Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities
Definitions
- the present invention relates to a terminal apparatus for downloading a map.
- a navigation apparatus in which a map data is stored in a storage medium such as CD-ROM, and read, upon required, by driving the storage medium with a disk driver to retrieve a guidance path.
- a place of departure and a destination are transmitted from a car-mounted server to an information center.
- the information center retrieves a guidance path from the place of departure to the destination to transmit guidance path data and map data for displaying the guidance path to the car-mounted server.
- the car-mounted server inputs the guidance path data and the map data into a navigation device.
- the navigation device conducts path guidance, employing the guidance path data and the map data.
- a document regarding a car navigation terminal apparatus and navigation method of this type is JP-A-2000-55682 specification or the like, for example.
- a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a desired place exists in the simple map, and if it exists, the map of the desired place is loaded from the simple map, or if it does not exist, the map of the desired place is downloaded from a navigation server.
- the simple map is a map composed of specific sorts of roads.
- the specific sorts of roads include expressways and national roads.
- the simple map is a rough map at lower level.
- the simple map is a display map that does not include any map for retrieval.
- a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a desired place exists in the simple map, and if it exists, the map of the desired place is loaded from the simple map and data for creating a guide map including a guidance point is downloaded from a navigation server, or if it does not exist, a small sectional map including a guidance point is downloaded from the navigation server.
- the guide map involves data for guiding a travelling direction at a position permitting travelling in plural directions.
- a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a current position is in the simple map, and if it exists, the current position map is loaded from the simple map, or if it does not exist, the current position map is downloaded from a navigation server.
- a terminal apparatus in which a simple map comprising specific sorts of roads is installed and when a map is desired, if a car passes through the specific sorts of roads, the simple map is loaded, or if the car passes through any other road than the specific sorts of roads, a map of a current position is downloaded from a navigation server.
- the specific sorts of roads comprises expressways and national roads.
- a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a desired place exists in the simple map, and if it exists, the map of the desired place is loaded from the simple map, or if it does not exist, a remaining storable capacity of medium storing the simple maps is notified to a navigation server, and a map edited in accordance with the remaining storable capacity is downloaded from the navigation server.
- a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a desired place exists in the simple map, and if it exists, the map of the desired place is loaded from the simple map, or if it does not exist, map data with flagged components is received from a navigation server.
- FIG. 1 is a view showing a concept of a terminal apparatus according to the present invention
- FIG. 2 is a view showing an example of the terminal apparatus according to the invention.
- FIG. 3 is a flowchart when the terminal apparatus of the invention loads a map
- FIG. 4 is an external view of an example of the terminal apparatus of the invention.
- FIG. 5 is a view showing a software configuration for the terminal apparatus
- FIG. 6 is a view showing a hardware configuration for the terminal apparatus
- FIG. 7A is a diagram showing a map signal from a navigation server
- FIG. 7B is a view showing a map displayed on a display
- FIG. 8A is a diagram showing a retransmission map signal when there is an interruption in receiving the map from the navigation server
- FIG. 8B is a view showing a map displayed on the display
- FIG. 9 is a flowchart for receiving a map from the navigation server
- FIG. 10 is a diagram showing an example of a management table of map data held by the terminal apparatus
- FIG. 11 is a view showing the configuration of the navigation server of FIG. 2 and the terminal apparatus;
- FIG. 12 is a flowchart when the terminal apparatus displays a map of a current position
- FIG. 13 shows a selection screen for a car navigation service menu
- FIG. 14 shows a selection screen for a destination set-up
- FIG. 15 shows a selection screen for sports and leisure
- FIG. 16 shows a selection screen for a tennis court
- FIG. 17 is a screen showing a retrieved result
- FIG. 18 is a road map around Hitachi citizens Athletic Park
- FIG. 19 is a view showing an example of information that the terminal apparatus downloads as guidance point information;
- FIG. 19A is a sectional map including a guidance point;
- FIG. 19B is the guidance point data for producing a guide map including the guidance point;
- FIG. 20 is a flowchart for determining whether or not a map is downloaded from the navigation server.
- FIG. 21 is a flowchart for downloading a map edited in accordance with a remaining storable capacity of a medium for the simple map at the time of downloading a map from the navigation server.
- FIG. 1 is a view showing a concept of a signal transmission and receiving system including a terminal apparatus according to the present invention.
- Reference numeral 101 denotes a broadcasting satellite.
- Reference numeral 102 denotes a navigation server (hereinafter simply referred to as a navi server).
- Reference numeral 103 denotes an Internet.
- Reference numeral 104 denotes a telephone.
- Reference numeral 105 denotes a PC at a store or in a house.
- Reference numeral 106 denotes a terminal apparatus.
- Reference numeral 107 denotes a car with the terminal apparatus 106 installed.
- the terminal apparatus 106 is connected to the Internet 103 to download via the PC at the store or in the house.
- a portable telephone may be used to download at an outside.
- a memory card 201 storing the simple maps may be bought and inserted into the terminal apparatus 106 to download.
- the simple map means any one of the following three items, or a combination thereof.
- Maps made up of principal roads consisting of the specific sorts of roads, for example, expressways and national roads.
- FIG. 3 is a flowchart when the terminal apparatus loads the map.
- coordinates (latitude and longitude) of a desired place is decided (S 301 ).
- a management table e.g., a management table of FIG. 10.
- S 303 it is checked whether or not there exists a map. If there is a map, the map is loaded from the memory card 201 at hand or provided in the terminal apparatus 106 of FIG. 2 (S 304 ). If not, map data is downloaded from the navi server 102 of FIG. 2.
- the decision of the coordinates (latitude and longitude) in FIG. 3 basically is measured by a GPS receiver 406 shown in FIG. 4.
- the map displayed on a screen of the car-navigator is scrolled in accordance with a car position.
- the latitude and longitude of the current place are transmitted to the navi server 102 to download the map.
- the latitude and longitude of the car position are transmitted to the navi server 102 to download the map, which is shown in a flowchart of FIG. 12.
- a storage area for storing the management table is stored in the memory card 201 .
- the memory card 201 also stores the map. While the software of the terminal apparatus 106 is being executed, the management table may be directly read from the memory card 201 , or loaded into a DRAM 607 of FIG. 6.
- a determination whether or not the map exists at step S 303 in FIG. 3 is performed by the software of the terminal apparatus 106 .
- the software of the terminal apparatus 106 Specifically, it is a plug-in 501 of FIG. 5.
- a browser 502 receives an HTML file with map data name written, then the map data is received by the plug-in 501 , and the plug-in 501 is activated to process the map data.
- a determination whether or not the map exists is performed by the software (plug-in 501 ).
- the terminal apparatus 106 comprises a terminal apparatus main body 401 , a display 402 , a portable telephone 403 , a memory card slot 404 provided in the terminal apparatus main body 401 , a remote controller 405 , and a GPS (Global Positioning System) receiver 406 .
- the memory card 201 shown in FIG. 2 is inserted into the memory card slot 404 .
- the GPS receiver 406 measures its own position by communicating a signal with the GPS satellite 451 (S 1201 ). It is checked whether or not the map at the current place exists in the terminal apparatus (S 1202 ). If it exists, the map at the current place is displayed (S 1206 ).
- a communication confirmation screen with the navi server is displayed (S 1203 ), and it is checked whether or not the communication is made (S 1204 ). If the answer is yes, the map at the current place is downloaded from the navi server (S 1205 ), and the map at the current place is displayed (S 1206 ).
- reference numeral 501 denotes a plug-in.
- Reference numeral 502 denotes a browser.
- Reference numeral 503 denotes a 3D graphics library.
- Reference numeral 504 denotes a remote control driver.
- Reference numeral 505 denotes an RS 232 C driver.
- Reference numeral 506 denotes a portable telephone driver.
- Reference numeral 507 denotes a voice decoder.
- Reference numeral 508 denotes a CF card driver.
- Reference numeral 509 denotes an OS.
- the browser 502 If a power of the terminal apparatus 106 is turned on, firstly, the browser 502 is activated. In this state, if the terminal apparatus 106 receives a signal from the remote controller 405 , the remote control driver 504 interprets the signal. If the signal is a request for downloading data from a server on the Internet, for example, the browser 502 makes access to an appropriate server to download the data. In accordance with its data, the browser 502 activates an appropriate plug-in 501 to display the data, so that the user can inspect the data.
- the terminal apparatus 106 employs the portable telephone 403 to make access to the server.
- the portable telephone driver 506 controls the portable telephone 403 .
- the voice decoder 507 can reproduce the voice data.
- the plug-in 501 employing the function of the voice decoder 507 is activated to reproduce the voice data.
- reference numeral 601 denotes a CPU.
- Reference numeral 602 denotes an RS- 232 C driver.
- Reference numeral 604 denotes a PDC driver.
- Reference numeral 605 denotes a memory card I/F.
- Reference numeral 606 denotes a flash memory.
- Reference numeral 607 denotes a DRAM.
- Reference numeral 608 denotes an NTSC encoder.
- Reference numeral 609 denotes a graphics memory.
- Reference numeral 610 denotes a graphics processor.
- the CPU 601 is a processor for controlling the terminal apparatus 106 as a whole.
- the RS- 232 C driver 602 is employed to connect with an external device having an RS- 232 C interface.
- the remote control driver 603 serves to receive a signal from the remote controller.
- the PDC driver 604 controls communication employing a mobile telephone such as a portable telephone.
- the memory card I/F 605 controls input and output of the data into and from the memory card 201 inserted into the memory card slot 404 .
- the flash memory 606 stores a program for activating the terminal apparatus 106 .
- the flash memory 606 is a non-volatile memory, in which the contents are not lost even after the power of the terminal apparatus 106 is turned off. Accordingly, it is a suitable device for storing the program.
- the DRAM 607 is a dynamic RAM, and employed as a main memory for the CPU 601 .
- FIG. 7 is a diagram showing a state where a map is received from the navi server.
- a map signal which is sent from the navi server 102 in FIG. 2, has a header 701 at the first location, a delimiter D 2 (a flag for the next 702 ), an expressway component 702 , a delimiter D 3 (a flag for the next 703 ), a national road component 703 , a delimiter D 4 (a flag for the next 704 ), and a prefectural road component 704 , as shown in FIG. 7A.
- the prefectural road component 704 is attached with a sign x in FIG. 7A, whereby the terminal apparatus 106 in FIG. 7A cannot receive the prefectural road component 704 , resulting in an interruption. Therefore, a map including expressway alone can be displayed on the display unit.
- the registered place information section 1104 manages the places that the user has registered.
- the navi server 102 can also provide a function of registering the place. For example, when the user drives to a certain place, the latitude and longitude, and name of the restaurant where the user dropped in are uploaded to the navi-sever 102 , and then the navi server 102 registers the place in the registered place information section 1104 . Thereafter, the user downloads the information of registered place from the registered place information section 1104 , and can set up the place as the destination or transfer place.
- the registered places may be managed for each user or can be referred by other users.
- FIG. 12 is a flowchart when the terminal apparatus displays a map of a current place.
- the terminal apparatus 106 of FIG. 2 has the GPS receiver 406 , as shown in FIG. 4.
- the GPS receiver 406 measures its current place (S 1201 ). Then, it is checked whether or not a map at the current place exists in the terminal apparatus (S 1202 ). If the answer is yes, the map at the current position is displayed (S 1206 ). If the answer is no, a communication confirmation screen with the navi server is displayed (S 1203 ). And it is checked whether or not communication is made (S 1204 ). If the answer is no, the procedure is ended. If the answer is yes, the map at the current place is downloaded from the navi server (S 1205 ), and the map at the current place is displayed (S 1206 ).
- FIG. 13 is a selection screen of car navigation service menu.
- a selection screen 1301 of the car navigation service menu is a display screen of the display 402 of FIG. 4, and displays destination setting, route confirmation, place registration, Internet and setting as the car navigation service menu.
- FIG. 14 is a selection screen of the destination setting.
- the selection screen 1401 for the destination setting is a next selection screen when the destination setting is selected in the selection screen 1301 of FIG. 13.
- the selective items of destination setting include car & drive, sports & leisure, sightseeing, shopping, eating and drinking, lodging, and transportation.
- FIG. 16 is a selection screen of the tennis court.
- the selection screen 1601 of the tennis court is a next selection screen when the tennis court is selected in the selection screen 1501 of FIG. 15.
- the selective items of tennis court include Hokkaido, Aomori Prefecture, Iwate Prefecture, Akita Prefecture, Miyagi Prefecture, Yamagata Prefecture, Fukushima Prefecture and Ibaragi Prefecture.
Abstract
Description
- The present invention relates to a terminal apparatus for downloading a map.
- As a car-mounted equipment, there is a navigation apparatus in which a map data is stored in a storage medium such as CD-ROM, and read, upon required, by driving the storage medium with a disk driver to retrieve a guidance path.
- Alternatively, there is a known navigation method. In the known navigation method, a place of departure and a destination are transmitted from a car-mounted server to an information center. The information center retrieves a guidance path from the place of departure to the destination to transmit guidance path data and map data for displaying the guidance path to the car-mounted server. The car-mounted server inputs the guidance path data and the map data into a navigation device. The navigation device conducts path guidance, employing the guidance path data and the map data.
- A document regarding a car navigation terminal apparatus and navigation method of this type is JP-A-2000-55682 specification or the like, for example.
- However, in the above-described car navigation apparatus, there is a problem that it is expensive because the storage medium such as CD-ROM for storing the map data and the driver are equipped with the car navigation apparatus itself. In the above-described navigation method, the storage medium and the driver. are not needed and therefore, a low cost can be achieved. There is, however, a problem that telecommunication time becomes longer and telecommunication fee becomes higher, because it is required to download the guidance path data and the map data from the information center every time of telecommunication.
- It is an object of the present invention to provide a terminal apparatus in which telecommunication load is reduced and the telecommunication fee is less expensive.
- According to a first aspect of the invention, there is provided a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a desired place exists in the simple map, and if it exists, the map of the desired place is loaded from the simple map, or if it does not exist, the map of the desired place is downloaded from a navigation server.
- The simple map is a map composed of specific sorts of roads.
- The specific sorts of roads include expressways and national roads.
- The simple map is a rough map at lower level.
- The simple map is a display map that does not include any map for retrieval.
- According to a second aspect of the invention, there is provided a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a desired place exists in the simple map, and if it exists, the map of the desired place is loaded from the simple map and data for creating a guide map including a guidance point is downloaded from a navigation server, or if it does not exist, a small sectional map including a guidance point is downloaded from the navigation server.
- The guide map involves data for guiding a travelling direction at a position permitting travelling in plural directions.
- According to a third aspect of the invention, there is provided a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a current position is in the simple map, and if it exists, the current position map is loaded from the simple map, or if it does not exist, the current position map is downloaded from a navigation server.
- According to a fourth aspect of the invention, there is provided a terminal apparatus in which a simple map comprising specific sorts of roads is installed and when a map is desired, if a car passes through the specific sorts of roads, the simple map is loaded, or if the car passes through any other road than the specific sorts of roads, a map of a current position is downloaded from a navigation server.
- The specific sorts of roads comprises expressways and national roads.
- According to a fifth aspect of the invention, there is provided a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a desired place exists in the simple map, and if it exists, the map of the desired place is loaded from the simple map, or if it does not exist, a remaining storable capacity of medium storing the simple maps is notified to a navigation server, and a map edited in accordance with the remaining storable capacity is downloaded from the navigation server.
- According to a sixth aspect of the invention, there is provided a terminal apparatus in which a simple map is installed and when a map is desired, it is checked whether or not a map of a desired place exists in the simple map, and if it exists, the map of the desired place is loaded from the simple map, or if it does not exist, map data with flagged components is received from a navigation server.
- In receiving the map data with flagged components, if there is a radio disturbance, the map data following the map data directly before a flag that could not be received is demanded to receive all the flagged components.
- FIG. 1 is a view showing a concept of a terminal apparatus according to the present invention;
- FIG. 2 is a view showing an example of the terminal apparatus according to the invention;
- FIG. 3 is a flowchart when the terminal apparatus of the invention loads a map;
- FIG. 4 is an external view of an example of the terminal apparatus of the invention;
- FIG. 5 is a view showing a software configuration for the terminal apparatus;
- FIG. 6 is a view showing a hardware configuration for the terminal apparatus;
- FIG. 7A is a diagram showing a map signal from a navigation server;
- FIG. 7B is a view showing a map displayed on a display;
- FIG. 8A is a diagram showing a retransmission map signal when there is an interruption in receiving the map from the navigation server;
- FIG. 8B is a view showing a map displayed on the display;
- FIG. 9 is a flowchart for receiving a map from the navigation server;
- FIG. 10 is a diagram showing an example of a management table of map data held by the terminal apparatus;
- FIG. 11 is a view showing the configuration of the navigation server of FIG. 2 and the terminal apparatus;
- FIG. 12 is a flowchart when the terminal apparatus displays a map of a current position;
- FIG. 13 shows a selection screen for a car navigation service menu;
- FIG. 14 shows a selection screen for a destination set-up;
- FIG. 15 shows a selection screen for sports and leisure;
- FIG. 16 shows a selection screen for a tennis court;
- FIG. 17 is a screen showing a retrieved result;
- FIG. 18 is a road map around Hitachi Citizens Athletic Park;
- FIG. 19 is a view showing an example of information that the terminal apparatus downloads as guidance point information; FIG. 19A is a sectional map including a guidance point; FIG. 19B is the guidance point data for producing a guide map including the guidance point;
- FIG. 20 is a flowchart for determining whether or not a map is downloaded from the navigation server; and
- FIG. 21 is a flowchart for downloading a map edited in accordance with a remaining storable capacity of a medium for the simple map at the time of downloading a map from the navigation server.
- FIG. 1 is a view showing a concept of a signal transmission and receiving system including a terminal apparatus according to the present invention.
Reference numeral 101 denotes a broadcasting satellite.Reference numeral 102 denotes a navigation server (hereinafter simply referred to as a navi server).Reference numeral 103 denotes an Internet.Reference numeral 104 denotes a telephone.Reference numeral 105 denotes a PC at a store or in a house.Reference numeral 106 denotes a terminal apparatus.Reference numeral 107 denotes a car with theterminal apparatus 106 installed. - A broadcasting signal from the
broadcasting satellite 101 is received by thenavi server 102, and sent through theInternet 103 and thetelephone 104 to thePC 105 at the store or in the house. Alternatively, the broadcasting signal from thebroadcasting satellite 101 is directly transmitted to thePC 105 at the store or in the house. Theterminal apparatus 106 within thecar 107 receives data transmitted through thetelephone 104 or theInternet 103 from thenavi server 102. - Referring now to FIG. 2, there are three modes to download. The
terminal apparatus 106 is connected to theInternet 103 to download via the PC at the store or in the house. A portable telephone may be used to download at an outside. Amemory card 201 storing the simple maps may be bought and inserted into theterminal apparatus 106 to download. - Herein, the simple map means any one of the following three items, or a combination thereof.
- (1) Maps made up of principal roads consisting of the specific sorts of roads, for example, expressways and national roads.
- (2) Rough maps at lower level.
- (3) Display maps that dons not include any map for retrieval.
- FIG. 3 is a flowchart when the terminal apparatus loads the map. First of all, coordinates (latitude and longitude) of a desired place is decided (S301). Then, reference is made to a management table (e.g., a management table of FIG. 10) (S302), and it is checked whether or not there exists a map (S303). If there is a map, the map is loaded from the
memory card 201 at hand or provided in theterminal apparatus 106 of FIG. 2 (S304). If not, map data is downloaded from thenavi server 102 of FIG. 2. - Herein, the decision of the coordinates (latitude and longitude) in FIG. 3 basically is measured by a
GPS receiver 406 shown in FIG. 4. During car running, the map displayed on a screen of the car-navigator is scrolled in accordance with a car position. At this time, if the map to be displayed exists in theterminal apparatus 106 of FIGS. 1 and 2, that map is loaded, or if the map does not exist, the latitude and longitude of the current place are transmitted to thenavi server 102 to download the map. Also, when it is found that the map at the car position does not exist in theterminal apparatus 106, the latitude and longitude of the car position are transmitted to thenavi server 102 to download the map, which is shown in a flowchart of FIG. 12. - A storage area for storing the management table is stored in the
memory card 201. Thememory card 201 also stores the map. While the software of theterminal apparatus 106 is being executed, the management table may be directly read from thememory card 201, or loaded into aDRAM 607 of FIG. 6. - A determination whether or not the map exists at step S303 in FIG. 3 is performed by the software of the
terminal apparatus 106. Specifically, it is a plug-in 501 of FIG. 5. As the software processing, abrowser 502 receives an HTML file with map data name written, then the map data is received by the plug-in 501, and the plug-in 501 is activated to process the map data. Accordingly, a determination whether or not the map exists (rather, the overall processing of flow) is performed by the software (plug-in 501). - Referring now to FIG. 4, the
terminal apparatus 106 comprises a terminal apparatusmain body 401, adisplay 402, aportable telephone 403, amemory card slot 404 provided in the terminal apparatusmain body 401, aremote controller 405, and a GPS (Global Positioning System)receiver 406. Herein, thememory card 201 shown in FIG. 2 is inserted into thememory card slot 404. Referring also to FIG. 12, theGPS receiver 406 measures its own position by communicating a signal with the GPS satellite 451 (S1201). It is checked whether or not the map at the current place exists in the terminal apparatus (S1202). If it exists, the map at the current place is displayed (S1206). If it does not exist, a communication confirmation screen with the navi server is displayed (S1203), and it is checked whether or not the communication is made (S1204). If the answer is yes, the map at the current place is downloaded from the navi server (S1205), and the map at the current place is displayed (S1206). - Referring now to FIG. 5,
reference numeral 501 denotes a plug-in.Reference numeral 502 denotes a browser.Reference numeral 503 denotes a 3D graphics library.Reference numeral 504 denotes a remote control driver.Reference numeral 505 denotes an RS232C driver.Reference numeral 506 denotes a portable telephone driver.Reference numeral 507 denotes a voice decoder.Reference numeral 508 denotes a CF card driver.Reference numeral 509 denotes an OS. - If a power of the
terminal apparatus 106 is turned on, firstly, thebrowser 502 is activated. In this state, if theterminal apparatus 106 receives a signal from theremote controller 405, theremote control driver 504 interprets the signal. If the signal is a request for downloading data from a server on the Internet, for example, thebrowser 502 makes access to an appropriate server to download the data. In accordance with its data, thebrowser 502 activates an appropriate plug-in 501 to display the data, so that the user can inspect the data. - The
terminal apparatus 106 employs theportable telephone 403 to make access to the server. Theportable telephone driver 506 controls theportable telephone 403. In the case where the data downloaded from the server contains voice data, thevoice decoder 507 can reproduce the voice data. In this case, the plug-in 501 employing the function of thevoice decoder 507 is activated to reproduce the voice data. - Further, the
terminal apparatus 106 has a CF (Compact Flash)card driver 508. TheCF card driver 508 has a function of reading data stored in a CF card or storing the data in the CF card. To extend the function by connecting some device to theterminal apparatus 106, theterminal apparatus 106 is provided with an RS-232C port. The RS-232 C driver 505 controls input or output of the data through the RS-232C port. - Referring now to FIG. 6,
reference numeral 601 denotes a CPU.Reference numeral 602 denotes an RS-232C driver.Reference numeral 604 denotes a PDC driver.Reference numeral 605 denotes a memory card I/F. Reference numeral 606 denotes a flash memory.Reference numeral 607 denotes a DRAM.Reference numeral 608 denotes an NTSC encoder.Reference numeral 609 denotes a graphics memory.Reference numeral 610 denotes a graphics processor. - The
CPU 601 is a processor for controlling theterminal apparatus 106 as a whole. The RS-232 C driver 602 is employed to connect with an external device having an RS-232C interface. Theremote control driver 603 serves to receive a signal from the remote controller. ThePDC driver 604 controls communication employing a mobile telephone such as a portable telephone. - The
graphics processor 610 displays an image on thedisplay unit 402. Thegraphics processor 610 draws a figure in thegraphics memory 609 in accordance with instruction from theCPU 601. Thegraphics processor 610 reads periodically the image drawn with the drawing function, and the read image is converted into an NTSC signal by theNTSC encoder 608, and displayed on thedisplay unit 402. - The memory card I/
F 605 controls input and output of the data into and from thememory card 201 inserted into thememory card slot 404. Theflash memory 606 stores a program for activating theterminal apparatus 106. Theflash memory 606 is a non-volatile memory, in which the contents are not lost even after the power of theterminal apparatus 106 is turned off. Accordingly, it is a suitable device for storing the program. TheDRAM 607 is a dynamic RAM, and employed as a main memory for theCPU 601. - FIG. 7 is a diagram showing a state where a map is received from the navi server. A map signal, which is sent from the
navi server 102 in FIG. 2, has aheader 701 at the first location, a delimiter D2 (a flag for the next 702), anexpressway component 702, a delimiter D3 (a flag for the next 703), anational road component 703, a delimiter D4 (a flag for the next 704), and aprefectural road component 704, as shown in FIG. 7A. However, theprefectural road component 704 is attached with a sign x in FIG. 7A, whereby theterminal apparatus 106 in FIG. 7A cannot receive theprefectural road component 704, resulting in an interruption. Therefore, a map including expressway alone can be displayed on the display unit. - FIG. 8 is a diagram showing a retransmission state when a map signal from the navi server is interrupted. When receiving the map signal from the navi server is interrupted, the retransmitted data involves the
prefectural road component 704 with the delimiter D4 (the flag for 704) is received, as shown in FIG. 8A. Accordingly, fine map data including the prefectural roads as well can be always received, as shown in FIG. 8B. - FIG. 9 is a flowchart for receiving the map from the navi server. First of all, the header is received and the number of delimiters is confirmed (S901). And it is checked whether or not all the delimiters have been received (S902). If the answer is yes, the reception is ended. If the answer is no, it is checked whether or not there is reception disturbance (S903), in which if the answer is no, the procedure returns to step S902, or if the answer is yes, the data following the delimiter that could not be received is demanded (S904). Then the procedure returns to step S902, and if all the delimiters have been received, the reception is ended.
- FIG. 10 is a table showing an example of the management table of map data held by the
terminal apparatus 106. Theterminal apparatus 106 can determine whether or not the map data should be downloaded by referring to the management table when the map is needed. The management table is composed of themesh ID 1001, the download date andhour 1002, and the term ofservice 1003. By making reference to themesh ID 1001, it can be found whether or not a desired map exists in theterminal apparatus 106. If the desired map exists, the map is not downloaded, or if not, the map is downloaded. However, even if the required map is stored in theterminal apparatus 106, a considerable time may have elapsed from the time of downloading, or the term of service may be pressing or have been passed. Accordingly, even if the map exists in theterminal apparatus 106, the map must be downloaded in some cases. Therefore, theterminal apparatus 106 may determine whether or not the map is downloaded by referring to the download date andhour 1002 and the term ofservice 1003. - FIG. 11 is a view showing the configuration of the
navi server 102 of FIG. 2 and the terminal apparatus. Thenavi server 102 comprises auser management section 1102, aPOI management section 1103, a registeredplace information section 1104, amap information section 1105, a guidancepoint creation section 1106, and aCGI 1107 for effecting approval of the user and distribution of the processing, in connection with each section. - The
CGI 1107 processes a request from theterminal apparatus 106, and activates an appropriate process. Theuser management section 1102 manages the user information. Theuser management section 1102 manages user ID and password, and determines whether or not a user who is logging in can accept the service. - The
POI management section 1103 serves to retrieve or register the POI (Point Of Interests). For example, when a request for retrieving “restaurants in city A” is issued from theterminal apparatus 106, thePOI management section 1103 retrieves appropriate information. Note that this information contains at least the latitude, the longitude and the name of place. In this case, the restaurant name may be employed. Theterminal apparatus 106 that has received the retrieved information may display the information, or set up the retrieved place as the destination or transfer place. Alternatively, theterminal apparatus 106 may make registration of the place, and at a next time and following service, the place may be set up as the destination or transfer place. - The registered
place information section 1104 manages the places that the user has registered. In the above, an example of registering the place in theterminal apparatus 106 has been stated, but thenavi server 102 can also provide a function of registering the place. For example, when the user drives to a certain place, the latitude and longitude, and name of the restaurant where the user dropped in are uploaded to the navi-sever 102, and then thenavi server 102 registers the place in the registeredplace information section 1104. Thereafter, the user downloads the information of registered place from the registeredplace information section 1104, and can set up the place as the destination or transfer place. The registered places may be managed for each user or can be referred by other users. - The
map information section 1105 manages the map information, and cuts out a map upon a request from theterminal apparatus 106. The map data held by thenavi server 102 is called a vector map for use with the car-navigator commercially available. Theterminal apparatus 106 sends the latitude and longitude of that place to thenavi server 102, when a map is required, the latitude and longitude being passed to themap information section 1105, which cuts out the map around an area at the latitude and longitude. The map data is composed of a set of small divisions called a mesh, and when a map is cut out, some sheets of mesh around the area at the latitude and longitude are taken out. The number of sheets is requested from theterminal apparatus 106. Also, the scale is also requested from theterminal apparatus 106. - The
path search section 1106 performs the path search. From theterminal apparatus 106, it receives a start place, an end place, transfer places and search conditions, performs a path search on the basis of them, and sends back a search result to theterminal apparatus 106. The search result includes a series of latitudes and longitudes of all the passing places arranged in the passing order, a series of all the link IDs in the passing order, and the information of the guidance points. Herein, the guidance point is a place needed to be guided which way to proceed at the intersection, and involves the latitude, the longitude and the guidance direction. Also, the search conditions are those in performing the path search, for example, “expressway preferential”, “national road preferential” and “distance preferential”. Note that the search conditions are sent from theterminal apparatus 106, or may be stored in thenavi server 102 in advance. In this case, the search conditions may be different from one user to another, and must be managed for each user. - The
path retrieval section 1106 performs path retrieval. It receives a start place, an end place, transfer places and retrieval conditions from theterminal apparatus 106, performs the path retrieval on the basis of them, and sends back retrieval result to theterminal apparatus 106. The search result includes a series of latitudes and longitudes of all the passing places arranged in the passing order, a series of all the link IDs in the passing order, and the information of the guidance points. Herein, the guidance point is a place necessary to be guided which way to proceed at a intersection, and involves the latitude, the longitude and the guidance direction. - FIG. 12 is a flowchart when the terminal apparatus displays a map of a current place. Herein, the
terminal apparatus 106 of FIG. 2 has theGPS receiver 406, as shown in FIG. 4. In FIG. 12, first of all, theGPS receiver 406 measures its current place (S1201). Then, it is checked whether or not a map at the current place exists in the terminal apparatus (S1202). If the answer is yes, the map at the current position is displayed (S1206). If the answer is no, a communication confirmation screen with the navi server is displayed (S1203). And it is checked whether or not communication is made (S1204). If the answer is no, the procedure is ended. If the answer is yes, the map at the current place is downloaded from the navi server (S1205), and the map at the current place is displayed (S1206). - FIG. 13 is a selection screen of car navigation service menu. A
selection screen 1301 of the car navigation service menu is a display screen of thedisplay 402 of FIG. 4, and displays destination setting, route confirmation, place registration, Internet and setting as the car navigation service menu. - FIG. 14 is a selection screen of the destination setting. The
selection screen 1401 for the destination setting is a next selection screen when the destination setting is selected in theselection screen 1301 of FIG. 13. The selective items of destination setting include car & drive, sports & leisure, sightseeing, shopping, eating and drinking, lodging, and transportation. - FIG. 15 is a selection screen of the sports & leisure. The
selection screen 1501 of the sports & leisure is a next selection screen when the sports & leisure is selected in theselection screen 1401 of FIG. 14. The selective items of sports & leisure include amusement park, golf course, camp-ground, ski resort, tennis court, and skating rink. - FIG. 16 is a selection screen of the tennis court. The
selection screen 1601 of the tennis court is a next selection screen when the tennis court is selected in theselection screen 1501 of FIG. 15. The selective items of tennis court include Hokkaido, Aomori Prefecture, Iwate Prefecture, Akita Prefecture, Miyagi Prefecture, Yamagata Prefecture, Fukushima Prefecture and Ibaragi Prefecture. - FIG. 17 is a screen representing the retrieval result. A
screen 1701 represents a retrieval result when Ibaragi Prefecture is selected in theselection screen 1601 of FIG. 16. The items of the retrieval result include Hitachi Citizens Athletic Park, Mito International Tennis Court, Hitachinaka Park, Tsuchiura Station Front Tennis School, and Toride City Athletic Park. - FIG. 18 is a road map around the Hitachi City Athletic Park. A
road map 1801 around the Hitachi City Athletic Park is one when Hitachi City Athletic Park is selected in thescreen 1701 representing the retrieval result of FIG. 17. The road map shows the Hitachi CityAthletic Park 1801 of the destination, and the expressways, national roads, and prefectural roads around it. - FIG. 19 shows an example of the information that the
terminal apparatus 106 downloads as the guidance point information. FIG. 19A is a smallsectional map 1901 containing the guidance point, and FIG. 19B is theguidance point data 1902 for creating a guide map containing the guidance point. The smallsectional map 1901 may be created in thenavi server 102, or created in theterminal apparatus 106 on the basis of theguidance point data 1902. - The small
sectional map 1901 is displayed on thedisplay unit 402 when thecar 107 comes closer to the guidance point. For example, it is displayed about 300 meters before reaching the guidance point. Naturally, the smallsectional map 1901 is necessary to be created before that. - The
guidance point data 1902 is those for creating a map containing the guidance point, including, for example, the latitude and longitude of the guidance point, the admission side absolute link ID, and the escape side absolute link ID. Theguidance point data 1902 is downloaded into theterminal apparatus 106, together with the result of path search in thenavi server 102, and therefore, when thecar 107 starts to move, theguidance point data 1902 is already held in theterminal apparatus 106. Accordingly, while always grasping whether or not thecar 107 is approaching to the guidance point, the smallsectional map 1901 can be created and displayed, if the car approaches the place where the smallsectional map 1901 should be displayed. - Also, the small
sectional map 1901 may be created in thenavi server 102, and downloaded into theterminal apparatus 106. In this case, if the guidance point information is held by thenavi server 102, it may be possible that theterminal apparatus 106 transmits the latitude and longitude of thecar 107 to thenavi server 102 and thenavi server 102 creates the smallsectional map 1901. If thenavi server 102 does not have the path information, theterminal apparatus 106 transmits the guidance point information to thenavi server 102 and thenavi server 102 creates the smallsectional map 1901. - FIG. 20 is a flowchart for determining whether or not a map is downloaded from the navi server. First of all, the path data is received (S2001), and the sort of road on the path is investigated (S2002). It is checked whether or not the car passes through any other road than the expressway and the national road (S2003). If the answer is yes, it is checked whether or not a mesh containing the road is already downloaded (S2004), and if the answer is no, the mesh containing the road is downloaded (S2005). Then it is checked whether or not all the roads are investigated (S2006). If the answer is no, the procedure returns to step S2002. If the answer is no at step S2003, and if the answer is yes at step S2004, the procedure transfers to step S2006. And if the answer is yes at step S2006, the procedure is ended.
- FIG. 21 is a flowchart for downloading a map edited in accordance with a remaining storable capacity of a medium for the simple map at the time of downloading a map from the navigation server.
- First of all, the remaining storable capacity of the medium201 for the simple map is investigated (S2101). Then, the remaining storable capacity, together with a map of a desired place, is transmitted to the
navi server 102. Thenavi server 102 receives the transmitted signal, and cuts out the map of the desired place (S2103). And if the remaining storable capacity is equal to or less than the total map capacity, the roads other than the expressway and the national road are deleted (S2104). Then, map capacity is transmitted to the terminal apparatus 106 (S2105). - The
terminal apparatus 106 receives the transmitted signal, and checks whether or not the map can be contained in the medium (S2106). If the answer is no, the oldest accessed map is deleted (S2107). The procedure returns to step S2106. If the answer is yes at step S2106, the procedure transfers to step S2108 to download the map.
Claims (13)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/438,102 US6885938B2 (en) | 2000-09-13 | 2003-05-15 | Terminal apparatus for downloading map |
US11/076,998 US7139663B2 (en) | 2000-09-13 | 2005-03-11 | Terminal apparatus for downloading map |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-283794 | 2000-09-13 | ||
JP2000283794A JP4490566B2 (en) | 2000-09-13 | 2000-09-13 | Terminal device and navigation server |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/438,102 Continuation US6885938B2 (en) | 2000-09-13 | 2003-05-15 | Terminal apparatus for downloading map |
Publications (1)
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US20020032521A1 true US20020032521A1 (en) | 2002-03-14 |
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ID=18768102
Family Applications (3)
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US09/949,924 Abandoned US20020032521A1 (en) | 2000-09-13 | 2001-09-12 | Terminal apparatus for downloading map |
US10/438,102 Expired - Lifetime US6885938B2 (en) | 2000-09-13 | 2003-05-15 | Terminal apparatus for downloading map |
US11/076,998 Expired - Fee Related US7139663B2 (en) | 2000-09-13 | 2005-03-11 | Terminal apparatus for downloading map |
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US10/438,102 Expired - Lifetime US6885938B2 (en) | 2000-09-13 | 2003-05-15 | Terminal apparatus for downloading map |
US11/076,998 Expired - Fee Related US7139663B2 (en) | 2000-09-13 | 2005-03-11 | Terminal apparatus for downloading map |
Country Status (4)
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US (3) | US20020032521A1 (en) |
EP (1) | EP1189030B1 (en) |
JP (1) | JP4490566B2 (en) |
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US20170311129A1 (en) * | 2016-04-21 | 2017-10-26 | Microsoft Technology Licensing, Llc | Map downloading based on user's future location |
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US20220012650A1 (en) * | 2020-07-09 | 2022-01-13 | MG Innovation Lab, Inc. | Method and apparatus for optimizing algorithm-based travel scheduling |
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US10045158B2 (en) | 2006-03-31 | 2018-08-07 | Blackberry Limited | Methods and apparatus for associating mapping functionality and information in contact lists of mobile communication devices |
US10567921B2 (en) | 2006-03-31 | 2020-02-18 | Blackberry Limited | Methods and apparatus for associating mapping functionality and information in contact lists of mobile communication devices |
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US20080114543A1 (en) * | 2006-11-14 | 2008-05-15 | Interchain Solution Private Limited | Mobile phone based navigation system |
US8909254B2 (en) * | 2009-10-01 | 2014-12-09 | Qualcomm Incorporated | Venue application for mobile station position estimation |
US9992628B2 (en) * | 2016-04-21 | 2018-06-05 | Microsoft Technology Licensing, Llc | Map downloading based on user's future location |
US20170311129A1 (en) * | 2016-04-21 | 2017-10-26 | Microsoft Technology Licensing, Llc | Map downloading based on user's future location |
US20220012650A1 (en) * | 2020-07-09 | 2022-01-13 | MG Innovation Lab, Inc. | Method and apparatus for optimizing algorithm-based travel scheduling |
US11681957B2 (en) * | 2020-07-09 | 2023-06-20 | MG Innovation Lab, Inc. | Method and apparatus for optimizing algorithm-based travel scheduling |
Also Published As
Publication number | Publication date |
---|---|
EP1189030A3 (en) | 2004-09-22 |
US7139663B2 (en) | 2006-11-21 |
EP1189030A2 (en) | 2002-03-20 |
JP2002090162A (en) | 2002-03-27 |
DE60135815D1 (en) | 2008-10-30 |
EP1189030B1 (en) | 2008-09-17 |
US20030204307A1 (en) | 2003-10-30 |
US6885938B2 (en) | 2005-04-26 |
US20050159887A1 (en) | 2005-07-21 |
JP4490566B2 (en) | 2010-06-30 |
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Owner name: XANAVI INFORMATICS CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MACHII, KIMIYOSHI;MATSUO, SHIGERU;KATSUAKI, TANAKA;AND OTHERS;REEL/FRAME:012293/0661 Effective date: 20010903 Owner name: HITACHI LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MACHII, KIMIYOSHI;MATSUO, SHIGERU;KATSUAKI, TANAKA;AND OTHERS;REEL/FRAME:012293/0661 Effective date: 20010903 |
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STCB | Information on status: application discontinuation |
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