Information acquisition method, information providing method, and information acquisition device
First Claim
Patent Images
1. An information acquisition method for acquiring information relating to a travel destination of a mobile body, comprising:
- a first step of accumulating, as a travel history in a form of inter-node transition, a travel route obtained from a history of position information of the mobile body, at least one of nodes indicating a landmark, an area, or an intersection;
a second step of determining, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history; and
a third step of performing retrieval on the travel history under the condition for retrieval to predict one or more travel destinations or travel routes where the mobile body will advance, based on a result of the retrieval, wherein information relating to a predicted travel destination or a predicted travel route is acquired.
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Abstract
In an information acquisition system such as a car navigation system, a history accumulation DB 104 accumulates user'"'"'s travel history. A condition determination section 107 determines a condition for retrieval for performing accurate prediction, and a prediction section 108 predicts a travel destination using the condition for retrieval. An information-to-be-presented determination section 110 acquires information relating to the travel destination predicted by the prediction section 108 from a received information DB 802 or the like.
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Citations
27 Claims
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1. An information acquisition method for acquiring information relating to a travel destination of a mobile body, comprising:
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a first step of accumulating, as a travel history in a form of inter-node transition, a travel route obtained from a history of position information of the mobile body, at least one of nodes indicating a landmark, an area, or an intersection;
a second step of determining, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history; and
a third step of performing retrieval on the travel history under the condition for retrieval to predict one or more travel destinations or travel routes where the mobile body will advance, based on a result of the retrieval, wherein information relating to a predicted travel destination or a predicted travel route is acquired. - View Dependent Claims (2, 4, 5, 6, 11, 13, 14, 16, 17, 24)
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3. (canceled)
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7. (canceled)
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8. (canceled)
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9. An information acquisition method for acquiring information relating to a travel destination of a mobile body, comprising:
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a first step of accumulating, as a travel history in a form of inter-node transition, a travel route obtained from a history of position information of the mobile body;
a second step of determining, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history; and
a third step of performing retrieval on the travel history under the condition for retrieval to predict one or more travel destinations or travel routes where the mobile body will advance, based on a result of the retrieval, wherein information relating to a predicted travel destination or a predicted travel route is acquired, wherein an intersection through which the mobile body have traveled in two or more directions among intersections in a travel route is set as a node.
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10. An information acquisition method for acquiring information relating to a travel destination of a mobile body, comprising:
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a first step of accumulating, as a travel history in a form of segment of travel start and travel end, a travel route obtained from a history of position information of the mobile body;
a second step of determining, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history; and
a third step of performing retrieval on the travel history under the condition for retrieval to predict one or more travel destinations or travel routes where the mobile body will advance, based on a result of the retrieval, wherein information relating to a predicted travel destination or a predicted travel route is acquired.
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12. (canceled)
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15. An information presenting method for presenting information relating to a travel destination of a mobile body, comprising:
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a first step of accumulating, as a travel history, a travel route obtained from a history of position information of the mobile body;
a second step of determining, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history;
a third step of performing retrieval on the travel history under the condition for retrieval to predict one or more travel destinations or travel routes where the mobile body will advance and to obtain a prediction probability of the predicted travel destination, based on a result of the retrieval;
a forth step of acquiring information relating to a predicted travel destination; and
a fifth step of determining information to be presented on the travel destination based on the information acquired in the forth step, wherein the determined information to be presented is presented, wherein the fifth step includes the steps of;
referencing information indicating a correspondence among positions, names, and genre names to which the positions belong; and
determining, as information to be presented, the name of the predicted destination when the prediction probability of the predicted travel destination exceeds a predetermined value, and otherwise determining the genre name thereof as information to be presented.
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18. (canceled)
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19. (canceled)
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20. (canceled)
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21. An information presenting method for presenting information relating to a travel destination of a mobile body, comprising:
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a first step of accumulating, as a travel history, a travel route obtained from a history of position information of the mobile body;
a second step of determining, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history;
a third step of performing retrieval on the travel history under the condition for retrieval to predict one or more travel destinations or travel routes where the mobile body will advance, based on a result of the retrieval;
a forth step of acquiring information relating to a predicted travel destination; and
a fifth step of determining information to be presented on the travel destination based on the information acquired in the first step, taking account of a cognitive load of a user who receives information presentation, wherein the determined information to be presented is presented.
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22. An information acquisition system comprising:
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a history accumulation section that accumulates, as a travel history in a form of inter-node transition, a travel route obtained from a history of position information of a mobile body, at least one of nodes indicating a landmark, an area, or an intersection;
a condition determination section that determines, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history accumulated in the history accumulation section; and
a prediction section that performs retrieval on the travel history under the condition for retrieval to predict one or more travel destinations for which the mobile body will advance based on a result of the retrieval, wherein information relating to the travel destination predicted by the prediction section is acquired.
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23. (canceled)
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25. An information presenting method for presenting information relating to a travel destination of a mobile body, comprising:
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a first step of accumulating, as a travel history, a travel route obtained from a history of position information of the mobile body;
a second step of determining, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history;
a third step of performing retrieval on the travel history under the condition for retrieval to predict one or more travel destinations or travel routes where the mobile body will advance and to obtain a prediction probability of the predicted travel destination, based on a result of the retrieval;
a forth step of acquiring information relating to a predicted travel destination; and
a fifth step of determining information to be presented on the travel destination based on the information acquired in the forth step, wherein the determined information to be presented is presented, wherein the fifth step includes the steps of;
referencing information indicating a correspondence among positions, names, and genre names to which the positions belong; and
setting level of detailedness about the information to be presented in accordance with the prediction probability of the predicted travel destination obtained in the third step.
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26. An information acquisition system comprising:
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a history accumulation section that accumulates, as a travel history in a form of inter-node transition, a travel route obtained from a history of position information of a mobile body;
a condition determination section that determines, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history accumulated in the history accumulation section; and
a prediction section that performs retrieval on the travel history under the condition for retrieval to predict one or more travel destinations for which the mobile body will advance based on a result of the retrieval, wherein information relating to the travel destination predicted by the prediction section is acquired, wherein the information acquisition system further comprises means for setting an intersection through which the mobile body have traveled in two or more directions among intersections in a travel route as a node.
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27. An information acquisition system comprising:
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a history accumulation section that accumulates, as a travel history in a form of segment of travel start and travel end, a travel route obtained from a history of position information of a mobile body;
a condition determination section that determines, as a condition for retrieval, a kind and a category of a key at retrieval on the travel history accumulated in the history accumulation section; and
a prediction section that performs retrieval on the travel history under the condition for retrieval to predict one or more travel destinations for which the mobile body will advance based on a result of the retrieval, wherein information relating to the travel destination predicted by the prediction section is acquired.
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Specification