Apparatus and program for navigation
First Claim
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1. A navigation apparatus comprising:
- a travel route determination unit for determining a travel route of a vehicle;
a detection area defining unit for defining a detection area, wherein the detection area is defined as an area that is within a predetermined range from the travel route determined by the travel route determination unit, and wherein whether or not noteworthy weather phenomenon in the detection area affects the vehicle is detected;
a weather information obtaining unit for obtaining weather information that is set to a first sectional unit on a map; and
a determination unit for deciding whether or not an affecting area is at least partially existing in the detection area defined by the detection area defining unit with reference to the weather information, wherein the affecting area is made up of the first sectional unit to which the noteworthy weather phenomenon is set, and wherein the determination unit determines that the weather phenomenon corresponding to the affecting area is affecting when the affecting area is at least partially existing in the detection area, whereinthe detection area defining unit uses the detection area from a second sectional unit on the map,the detection area defining unit defines the second sectional unit for composing the detection area as a smaller area than the first sectional unit for composing the affecting area.
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Abstract
A navigation apparatus defines a detection area for detecting a weather phenomenon as a predetermined range around a travel route that is designated as an area setting object. By referring to weather information acquired from external sources through communication, whether or not a weather warning exists in the detection area is determined. If the determination is affirmative, the weather phenomenon is considered as influential in the detection area, and the detection result is provided for a user. More practically, the travel route, the detection area and an affecting area of the weather warning are displayed on a display unit.
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Citations
20 Claims
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1. A navigation apparatus comprising:
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a travel route determination unit for determining a travel route of a vehicle; a detection area defining unit for defining a detection area, wherein the detection area is defined as an area that is within a predetermined range from the travel route determined by the travel route determination unit, and wherein whether or not noteworthy weather phenomenon in the detection area affects the vehicle is detected; a weather information obtaining unit for obtaining weather information that is set to a first sectional unit on a map; and a determination unit for deciding whether or not an affecting area is at least partially existing in the detection area defined by the detection area defining unit with reference to the weather information, wherein the affecting area is made up of the first sectional unit to which the noteworthy weather phenomenon is set, and wherein the determination unit determines that the weather phenomenon corresponding to the affecting area is affecting when the affecting area is at least partially existing in the detection area, wherein the detection area defining unit uses the detection area from a second sectional unit on the map, the detection area defining unit defines the second sectional unit for composing the detection area as a smaller area than the first sectional unit for composing the affecting area. - View Dependent Claims (2, 3, 4, 5, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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6. A navigation apparatus comprising:
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a travel route determination unit for determining a travel route of a vehicle; a detection area defining unit for defining a detection area, wherein the detection area is defined as an area that is within a predetermined range from the travel route determined by the travel route determination unit, and wherein whether or not noteworthy weather phenomenon in the detection area affects the vehicle is detected; a weather information obtaining unit for obtaining weather information that is set to a first sectional unit on a map; and a determination unit for deciding whether or not an affecting area is at least partially existing in the detection area defined by the detection area defining unit with reference to the weather information, wherein the affecting area is made up of the first sectional unit to which the noteworthy weather phenomenon is set, and wherein the determination unit determines that the weather phenomenon corresponding to the affecting area is affecting when the affecting area is at least partially existing in the detection area, wherein the detection area defining unit defines the detection area in accordance with a distance from the current position of the vehicle, the detection area is configured to be broader in proportion to the distance from the current position of the vehicle.
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7. A navigation apparatus comprising:
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a travel route determination unit for determining a travel route of a vehicle; a detection area defining unit for defining a detection area, wherein the detection area is defined as an area that is within a predetermined range from the travel route determined by the travel route determination unit, and wherein whether or not noteworthy weather phenomenon in the detection area affects the vehicle is detected; a weather information obtaining unit for obtaining weather information that is set to a first sectional unit on a map; and a determination unit for deciding whether or not an affecting area is at least partially existing in the detection area defined by the detection area defining unit with reference to the weather information, wherein the affecting area is made up of the first sectional unit to which the noteworthy weather phenomenon is set, and wherein the determination unit determines that the weather phenomenon corresponding to the affecting area is affecting when the affecting area is at least partially existing in the detection area, wherein the detection area defining unit defines the detection area in accordance with a travel time from the current position of the vehicle, the detection area is configured to be broader in proportion to the travel time from the current position of the vehicle.
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8. A navigation apparatus comprising:
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a travel route determination unit for determining a travel route of a vehicle; a detection area defining unit for defining a detection area, wherein the detection area is defined as an area that is within a predetermined range from the travel route determined by the travel route determination unit, and wherein whether or not noteworthy weather phenomenon in the detection area affects the vehicle is detected; a weather information obtaining unit for obtaining weather information that is set to a first sectional unit on a map; and a determination unit for deciding whether or not an affecting area is at least partially existing in the detection area defined by the detection area defining unit with reference to the weather information, wherein the affecting area is made up of the first sectional unit to which the noteworthy weather phenomenon is set, and wherein the determination unit determines that the weather phenomenon corresponding to the affecting area is affecting when the affecting area is at least partially existing in the detection area, wherein the detection area defining unit defines the detection area that corresponds to a route point on the travel route in accordance with a size of the affecting area of the weather phenomenon, the detection area that corresponds to the route point on the travel route is modified in accordance with the size of the affecting area of the weather phenomenon.
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9. A navigation apparatus comprising:
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a travel route determination unit for determining a travel route of a vehicle; a detection area defining unit for defining a detection area, wherein the detection area is defined as an area that is within a predetermined range from the travel route determined by the travel route determination unit, and wherein whether or not noteworthy weather phenomenon in the detection area affects the vehicle is detected; a weather information obtaining unit for obtaining weather information that is set to a first sectional unit on a map; and a determination unit for deciding whether or not an affecting area is at least partially existing in the detection area defined by the detection area defining unit with reference to the weather information, wherein the affecting area is made up of the first sectional unit to which the noteworthy weather phenomenon is set, and wherein the determination unit determines that the weather phenomenon corresponding to the affecting area is affecting when the affecting area is at least partially existing in the detection area, wherein the detection area defining unit defines the detection area that corresponds to the current position of the vehicle in accordance with a predetermined speed of the vehicle when the vehicle has traveled for a predetermined period at a speed that is equal to or under the predetermined speed, the detection area that corresponds to the current position of the vehicle is modified in accordance with the predetermined speed of the vehicle when the vehicle has continuously traveled for a predetermined period of time at a speed that is equal to or under the predetermined speed.
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10. A navigation apparatus comprising:
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a travel route determination unit for determining a travel route of a vehicle; a detection area defining unit for defining a detection area, wherein the detection area is defined as an area that is within a predetermined range from the travel route determined by the travel route determination unit, and wherein whether or not noteworthy weather phenomenon in the detection area affects the vehicle is detected; a weather information obtaining unit for obtaining weather information that is set to a first sectional unit on a map; and a determination unit for deciding whether or not an affecting area is at least partially existing in the detection area defined by the detection area defining unit with reference to the weather information, wherein the affecting area is made up of the first sectional unit to which the noteworthy weather phenomenon is set, and wherein the determination unit determines that the weather phenomenon corresponding to the affecting area is affecting when the affecting area is at least partially existing in the detection area, wherein the detection area defining unit defines the detection area that corresponds to the current position of the vehicle in accordance with a speed limit of the current position, the detection area that corresponds to the current position of the vehicle is modified in accordance with the speed limit.
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11. A navigation apparatus comprising:
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a travel route determination unit for determining a travel route of a vehicle; a detection area defining unit for defining a detection area, wherein the detection area is defined as an area that is within a predetermined range from the travel route determined by the travel route determination unit, and wherein whether or not noteworthy weather phenomenon in the detection area affects the vehicle is detected; a weather information obtaining unit for obtaining weather information that is set to a first sectional unit on a map; and a determination unit for deciding whether or not an affecting area is at least partially existing in the detection area defined by the detection area defining unit with reference to the weather information, wherein the affecting area is made up of the first sectional unit to which the noteworthy weather phenomenon is set, and wherein the determination unit determines that the weather phenomenon corresponding to the affecting area is affecting when the affecting area is at least partially existing in the detection area, wherein the detection area defining unit defines the detection area that corresponds to a route point on the travel route in accordance with a type of the weather phenomenon, the detection area that corresponds to the route point on the travel route is modified in accordance with the type of the weather phenomenon.
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Specification