Automobile navigation system
First Claim
1. A navigation system provided in a vehicle, the navigation system comprising:
- a distance computing unit for acquiring route information indicating a route to a destination and position information indicating a present position of the vehicle, and for determining a distance to a guidance point included in the route information;
a driving data acquiring unit for acquiring driving data including speed information about the vehicle and operation information about an operation that relates to a driver of the vehicle and has influence on a running state of the vehicle;
an action predicting unit for predicting, with respect to the driver, an action at the guidance point based on a history of the acquired driving data; and
an audio guidance executing unit for executing audio guidance about the guidance point when the determined distance is equal to or less than a preset allowable value and the predicted action disagrees with an action that the driver is required to take at the guidance point,wherein the guidance point is a branch included in the route, andwherein, with respect to the driver, an action at the guidance point is an operation of the driver based on a direction following the route.
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Accused Products
Abstract
A driver'"'"'s action at a target intersection in a guided route is predicted based on driving data. When the driver is attempting to go straight ahead at a target intersection where the driver should make a turn, or when the driver is attempting to make a turn at a target intersection where the driver should go straight ahead, the predicted driver'"'"'s action is determined to disagree with the guided route. In this case, an execution of an audio guidance is performed but re-execution is awaited for a predetermined period. Further, when the driver is attempting to go straight ahead at a target intersection where the driver should make a turn, an audio guidance is executed after a distance to the target intersection is determined to be smaller than a required distance computed from a vehicle speed.
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Citations
20 Claims
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1. A navigation system provided in a vehicle, the navigation system comprising:
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a distance computing unit for acquiring route information indicating a route to a destination and position information indicating a present position of the vehicle, and for determining a distance to a guidance point included in the route information; a driving data acquiring unit for acquiring driving data including speed information about the vehicle and operation information about an operation that relates to a driver of the vehicle and has influence on a running state of the vehicle; an action predicting unit for predicting, with respect to the driver, an action at the guidance point based on a history of the acquired driving data; and an audio guidance executing unit for executing audio guidance about the guidance point when the determined distance is equal to or less than a preset allowable value and the predicted action disagrees with an action that the driver is required to take at the guidance point, wherein the guidance point is a branch included in the route, and wherein, with respect to the driver, an action at the guidance point is an operation of the driver based on a direction following the route. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A navigation system provided in a vehicle, the navigation system comprising:
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a distance computing unit for acquiring route information indicating a route to a destination and position information indicating a present position of the vehicle, and for determining a distance to a guidance point included in the route information; a driving data acquiring unit for acquiring driving data including speed information about the vehicle and operation information about an operation that relates to a driver of the vehicle and has influence on a running state of the vehicle; an action predicting unit for predicting, with respect to the driver, an action at the guidance point based on a history of the acquired driving data; and an audio guidance executing unit for executing audio guidance about the guidance point when the determined distance is equal to or less than a preset allowable value and the predicted action disagrees with an action that the driver is required to take at the guidance point, wherein the action predicting unit includes a plurality of templates and predicts the action at the guidance point by comparing the history of the acquired driving data with the plurality of templates, and wherein the plurality of templates are formed by classifying action patterns designated from accumulated data including one of (i) driving data previously acquired by the driving data acquiring unit and (ii) pseudo driving data corresponding to the previously acquired driving data. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification