JP2016176747A5

JP2016176747A5 -

Info

Publication number: JP2016176747A5
Application number: JP2015055794A
Authority: JP
Filing date: 2015-03-19
Publication date: 2018-05-10
Anticipated expiration: 2035-03-19

Claims

Positioning means;
Storage means for storing position information of the positioning points measured by the positioning means;
Determination means for determining whether the user is lost or not based on at least one of the movement information related to the user's movement and the user's biological information;
An estimation means for estimating a candidate point before the user gets lost in the positioning points stored in the storage means when the determination means determines that the user is lost;
A navigation device characterized by comprising:

The determination means further comprises a calculation means for calculating a user's degree of ambiguity for each positioning point,
The estimation unit estimates a candidate point before the user gets lost from the positioning points stored in the storage unit, based on the degree of hesitation calculated by the calculation unit. Item 4. The navigation device according to Item 1.

The estimation means estimates, as the candidate point, a point with a low degree of lostness from the positioning points stored in the storage means based on the degree of lostness calculated by the calculation means. The navigation device according to claim 2.

The navigation device according to claim 2 or 3, wherein the calculation means calculates the degree of lostness by assigning a weight such that the degree of lostness becomes higher as the current time is closer.

A first acquisition means for acquiring the movement information;
The calculating means includes
The navigation device according to any one of claims 2 to 4, wherein the degree of lostness is calculated based on the motion information acquired by the first acquisition unit.

The navigation apparatus according to claim 5, wherein the first acquisition unit specifies a movement mode of the user and acquires the specified movement mode as the movement information.

The navigation apparatus according to claim 5, wherein the first acquisition unit specifies a movement distance of the user and acquires the specified movement distance as the movement information.

A second acquisition means for acquiring the user's biological information;
The calculating means includes
The navigation device according to any one of claims 2 to 4, wherein the degree of lostness is calculated based on the biological information acquired by the second acquisition unit.

The navigation device according to any one of claims 1 to 8, wherein the positioning point stored in the storage unit is a positioning point stored in accordance with user movement history information.

A navigation method using a navigation device comprising a storage means for storing position information of a positioning point measured by a positioning means,
Determining whether the user is lost or not based on at least one of the motion information related to the user's motion and the biometric information of the user;
When it is determined that the user is lost, estimating a candidate point before the user gets lost from the positioning points stored in the storage means;
A navigation method comprising:

A computer of a navigation device comprising storage means for storing position information of positioning points measured by positioning means,
Determining means for determining whether the user is lost or not based on at least one of the motion information related to the user's motion and the biological information of the user;
An estimation means for estimating a candidate point before the user is lost in the road from the positioning points stored in the storage means when it is determined that the determination means is at a loss;
A program characterized by functioning as