Map data update method and navigation apparatus
First Claim
1. A map data update method of updating nationwide updated version map data to next nationwide updated version map data using nationwide update data and of updating the next nationwide updated version map data using route-specific update data, comprising:
- a first step of performing map data updating in a background of navigation control in which map data is comprised of a plurality of map files, and giving priority to update processing using the route-specific update data over update processing using the nationwide update data; and
a second step of, for map files updated using route-specific update files included in the route-specific update data, performing an update at first using nationwide update files included in the nationwide update data and then performing an update using the route-specific update files, whereinsaid second step includes sub-steps of;
checking whether map files used in the navigation control have been updated using the route-specific update data;
if not updated, checking whether the map files have been updated using the nationwide update files included in the nationwide update data; and
if not updated, updating the map files using the nationwide update files included in the nationwide update data, and then updating the map files using the route-specific update files, andthe updated map files are then used in the navigation control.
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Accused Products
Abstract
A navigation apparatus is disclosed comprising update functions to update nationwide updated version map data using route-specific update data, and to update the nationwide updated version map data to the next nationwide updated version map data using nationwide update data. A map update processing portion of this navigation apparatus performs updates of map data in the background of navigation control, gives priority to update processing using the route-specific update data over update processing using the nationwide update data, and, if map files to be updated using route-specific update files included in the route-specific update data have not been updated using the nationwide update data, performs updates using the nationwide update data, and then performs updates using route-specific update files.
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Citations
15 Claims
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1. A map data update method of updating nationwide updated version map data to next nationwide updated version map data using nationwide update data and of updating the next nationwide updated version map data using route-specific update data, comprising:
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a first step of performing map data updating in a background of navigation control in which map data is comprised of a plurality of map files, and giving priority to update processing using the route-specific update data over update processing using the nationwide update data; and a second step of, for map files updated using route-specific update files included in the route-specific update data, performing an update at first using nationwide update files included in the nationwide update data and then performing an update using the route-specific update files, wherein said second step includes sub-steps of; checking whether map files used in the navigation control have been updated using the route-specific update data; if not updated, checking whether the map files have been updated using the nationwide update files included in the nationwide update data; and if not updated, updating the map files using the nationwide update files included in the nationwide update data, and then updating the map files using the route-specific update files, and the updated map files are then used in the navigation control. - View Dependent Claims (2, 3)
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4. A map data update method of updating first nationwide updated version map data which is comprised of a plurality of files using first route-specific update data, and thereafter updating the first nationwide updated version map data using second route-specific update data, or updating the first nationwide updated version map data to a second nationwide updated version map data using nationwide update data, comprising the steps of:
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when performing an update of the first nationwide updated version map data using the second route-specific update data or the nationwide update data after updating using the first route-specific update data, returning the map files updated by the first route-specific update data to the first nationwide updated version map data and then performing an update using the second route-specific update data or the nationwide update data, in a background of navigation control; in parallel with the update processing, checking whether map files used in navigation control have been updated using the second route-specific update data or using the nationwide update data; and if updating has not been performed, returning the map files to the first nationwide updated version map files, and then performing the update of the first nationwide updated version map files using the second route-specific update data or the nationwide update data, wherein the updated map files are then used in the navigation control. - View Dependent Claims (5)
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6. A navigation apparatus which comprises update functions to use route-specific update data to update nationwide updated-version map data which is comprised of a plurality of map files, and to use nationwide update data to update the nationwide updated version map data to the next nationwide updated version map data, comprising:
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a storage portion, which stores map data to be used in navigation control; a navigation control portion for performing navigation control; an update data input portion, for input of route-specific update data and nationwide update data; and an update processing portion, which performs map updates in a background of the navigation control, and which gives priority to update processing using the route-specific update data over update processing using the nationwide update data, and for map files updated using route-specific update files included in the route-specific update data, which updates the map files at first using nationwide updated files included in the nationwide update data and then updates the map files using said route-specific update files, wherein said update processing portion includes; means for checking whether map files used in the navigation control have been updated using the route-specific update data; means for, if not updated, checking whether the map files have been updated using the nationwide update files included in the nationwide update data; and means for, if not updated, updating the map files using the nationwide update files included in the nationwide update data, and then updating the map files using the route-specific update files, wherein the updated map files are then used in the navigation control. - View Dependent Claims (7, 8)
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9. A navigation apparatus, which comprises update functions to update first nationwide updated-version map data which is comprised of a plurality of map files using first route-specific update data, thereafter update the first nationwide updated version map data using second route-specific update data, or update the first nationwide updated version map data to second nationwide updated version map data using nationwide update data, comprising:
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a first storage portion, which stores map data to be used in navigation control; a navigation control portion, which performs navigation control; an update data input portion, for input of route-specific update data and nationwide update data; and an update processing portion for updating the first nationwide updated version map data, wherein said update processing portion includes; first means, which, when using the second route-specific update data or nationwide update data to perform an update after updating using the first route-specific update data, performs updating using the second route-specific update data or the nationwide update data after returning the map files updated by the first route-specific update data to the first nationwide updated version map data in a background of navigation control, second means which performs a check in parallel with said update processing to determine whether map files to be used in navigation control have been updated using the second route-specific update data or using the nationwide update data, and third means which, if the map files have not been updated, returns the map files to the first nationwide updated version map files, and then performs an update using the second route-specific update data or the nationwide update data. - View Dependent Claims (10)
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11. A map data update method of updating nationwide updated version map data to next nationwide updated version map data using nationwide update data and of updating the next nationwide updated version map data using route-specific update data, comprising:
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a first step of performing map data updating in a background of navigation control in which map data is comprised of a plurality of map files, and giving priority to update processing using the route-specific update data over update processing using the nationwide update data; a second step of, for map files updated using route-specific update files included in the route-specific update data, performing an update at first using nationwide update files included in the nationwide update data and then performing an update using the route-specific update files; and a third step of managing whether or not each map file has been updated using the route-specific update data, and managing whether or not each map file has been updated using the nationwide update data, based upon a serial number added to each map file, wherein said second step includes sub-steps of; checking whether map files used in the navigation control have been updated using the route-specific update data; if not updated using the route-specific update data, checking whether the map files have been updated using the nationwide update files included in the nationwide update data; and if not updated using the nationwide update files, updating the map files using the nationwide update files included in the nationwide update data, and then updating the map files using the route-specific update files, wherein the updated map files are then used in the navigation control; and said third step includes sub-steps of; acquiring, together with the update data, a serial number management file, in which are entered “
valid”
data in positions corresponding to new serial numbers added to map files to be updated using the update files and storing the serial number management file;checking whether the map file has been updated, by checking whether “
valid”
data has been entered at the serial number position of the map file; andeach time the map file is updated using the update file, adding said new serial number to the map file and entering “
valid”
data at the new serial number position of the map file.
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12. A map data update method of updating first nationwide updated version map data which is comprised of a plurality of files using first route-specific update data, and thereafter updating the first nationwide updated version map data using second route-specific update data, or updating the first nationwide updated version map data to a second nationwide updated version map data using nationwide update data, comprising the steps of:
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when performing an update of the first nationwide updated version map data using the second route-specific update data or the nationwide update data after updating using the first route-specific update data, returning the map files updated by the first route-specific update data to the first nationwide updated version map data and then performing an update using the second route-specific update data or the nationwide update data, in a background of navigation control; and in parallel with the update processing, checking whether map files used in navigation control have been updated using the second route-specific update data or using the nationwide update data; and if updating has not been performed using the second route-specific update data or using the nationwide update data, returning the map files to the first nationwide updated version map files, and then performing the update of the first nationwide updated version map files using the second route-specific update data or the nationwide update data, the updated map files being then used in the navigation control, wherein said map data update method further comprising step of; managing whether or not each map file has been updated using the route-specific update data, and managing whether or not each map file has been updated using the nationwide update data, based upon a serial number added to each map file, wherein said managing step includes sub-steps of; acquiring, together with the update data, a serial number management file, in which are entered “
valid”
data in positions corresponding to new serial numbers added to map files to be updated using the update files and storing the serial number management file;checking whether the map file has been updated, by checking whether “
valid”
data has been entered at the serial number position of the map file; andeach time the map file is updated using the update file, adding said new serial number to the map file and entering “
valid”
data at the new serial number position of the map file.
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13. A navigation apparatus which comprises update functions to use route-specific update data to update nationwide updated-version map data which is comprises of a plurality of map files, and to use nationwide update data to update the nationwide updated version map data to the next nationwide updated version map data, comprising:
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a memory for storing map data to be used in navigation control; a navigation control portion for performing navigation control; an update data input portion, for input of route-specific update data and nationwide update data; an update processing portion, which performs map updates in a background of the navigation control, and which gives priority to update processing using the route-specific update data over update processing using the nationwide update data, and for map files updated using route-specific update files included in the route-specific update data, which updates the map files at first using nationwide updated files included in the nationwide update data and then updates the map files using said route-specific update files; and a management portion of managing whether each map file has been updated using the route-specific update data and of managing whether each map file has been updated using the nationwide update data, based upon a serial number added to each map file, wherein said update processing portion includes; a check portion for checking whether map files used in the navigation control have been updated using the route-specific update data; a check portion for, if not updated using the route-specific update data, checking whether the map files have been updated using the nationwide update files included in the nationwide update data; and an update portion for, if not updated using the nationwide update files, updating the map files using the nationwide update files included in the nationwide update data, and then updating the map files using the route-specific update files, wherein the updated map files are then used in the navigation control; and the management portion includes; an acquisition portion for acquiring from said update data input portion, together with the update data, a serial number management file, in which are entered “
valid”
data in positions corresponding to new serial numbers added to map files to be updated using the update files;a memory for storing the acquired serial number management file; a check portion for checking whether the map file has been updated, by checking whether “
valid”
data has been entered at the serial number position of the map file; andan update portion of the serial number management file for, each time the map file is updated using the update file, adding said new serial number to the map file and entering “
valid”
data at the new serial number position of the map file.
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14. A navigation apparatus, which comprises update functions to update first nationwide updated-version map data which is comprised of a plurality of map files using first route-specific update data, thereafter update the first nationwide updated version map data using second route-specific update data, or update the first nationwide updated version map data to second nationwide updated version map data using nationwide update data, comprising:
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a memory, which stores map data to be used in navigation control; a navigation control portion, which performs navigation control; an update data input portion, for input of route-specific update data and nationwide update data; an update processing portion for updating the first nationwide updated version map data; and a management portion of managing whether each map file has been updated using the route-specific update data and of managing whether each map file has been updated using the nationwide update data, based upon a serial number added to each map file, wherein said update processing portion includes; a first update portion, which, when using the second route-specific update data or nationwide update data to perform an update after updating using the first route-specific update data, performs updating using the second route-specific update data or the nationwide update data after returning the map files updated by the first route-specific update data to the first nationwide updated version map data in a background of navigation control, check portion for performing a check in parallel with said update processing to determine whether map files to be used in navigation control have been updated using the second route-specific update data or using the nationwide update data, and a second update portion for, if the map files have not been updated, returning the map files to the first nationwide updated version map files, and then performing an update using the second route-specific update data or the nationwide update data, wherein the management portion includes; an acquisition portion for acquiring from said update data input portion, together with the update data, a serial number management file, in which are entered “
valid”
data in positions corresponding to new serial numbers added to map files to be updated using the update files;a memory for storing the acquired serial number management file; a check portion for checking whether the map file has been updated, by checking whether “
valid”
data has been entered at the serial number position of the map file; andan update portion for, each time the map file is updated using the update file, adding said new serial number to the map file and entering “
valid”
data at the new serial number position of the map file. - View Dependent Claims (15)
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Specification