Navigation device and method of presenting information corresponding to travel course stage
First Claim
1. A navigation device that calculates a current position of a vehicle and displays a road map around the current position on a display, comprising:
- traveling state acquisition means for acquiring a parameter indicative of a current traveling state of the vehicle; and
course stage prediction means for predicting whether the vehicle is running in a “
first stage”
, a “
middle stage”
, or a “
last stage”
of a travel course when destination and guidance settings are not made, according to the acquired parameter indicative of the current traveling state of the vehicle, wherein information is presented to a passenger in a controlled manner according to the predicted course stage.
1 Assignment
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Accused Products
Abstract
A CPU of a navigation device includes a clock unit, a continuous driving time measurement unit that measures continuous driving time from a traveling start time, a course stage prediction unit, and a presenting information controller. The course stage prediction unit selects based on the traveling start time, a first transition determination reference time for transition from a “first stage” to a “middle stage” from prepared data of the first transition determination reference time and a second transition determination reference time for transition from the “middle stage” to a “last stage” from prepared data of the second transition determination reference time. The course stage prediction unit then predicts a course stage by comparing the continuous driving time with the selected transition determination reference times. Depending on the predicted course stage, the presenting information controller presents information convenient for a driver in the predicted course stage.
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Citations
14 Claims
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1. A navigation device that calculates a current position of a vehicle and displays a road map around the current position on a display, comprising:
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traveling state acquisition means for acquiring a parameter indicative of a current traveling state of the vehicle; and course stage prediction means for predicting whether the vehicle is running in a “
first stage”
, a “
middle stage”
, or a “
last stage”
of a travel course when destination and guidance settings are not made, according to the acquired parameter indicative of the current traveling state of the vehicle, wherein information is presented to a passenger in a controlled manner according to the predicted course stage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of presenting information corresponding to a course stage in a navigation device that calculates a current position of a vehicle and displays a road map around the current position on a display, the method comprising the steps of:
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acquiring information of at least one of parameters indicative of a current traveling state of the vehicle, the parameters including a parameter of time elapsed since departure, a parameter of a distance from a departure point, a parameter of size of a road on which the vehicle is currently traveling, and a parameter of change in a traveling direction of the vehicle; predicting whether the vehicle is running in a “
first stage”
, a “
middle stage”
, or a “
last stage”
in the travel course when destination and guidance settings are not made, according to the acquired parameter indicative of the current traveling state of the, vehicle; andpresenting information to a passenger according to the predicted course stage.
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Specification