POSITIONING DEVICE, POSITIONING METHOD AND STORAGE MEDIUM STORING PROGRAM
First Claim
1. A positioning device for obtaining position data of a plurality of points on a movement route, comprising:
- a positioning unit that can measure a present position without requiring any past position data serving as a reference;
a movement measuring unit for measuring a relative positional change;
a position calculating unit for calculating position data of the plurality of points on the movement route on the basis of position data of a first reference point and positional change data obtained through measurement of the movement measuring unit; and
a correcting unit for correcting the position data of at least one of the plurality of points calculated by the position calculating unit on the basis of difference information representing difference between a position represented by the position data calculated by the position calculating unit and a position represented by a positioning result of the positioning unit with respect to any second reference point on the movement route.
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Accused Products
Abstract
A positioning device for obtaining position data of a plurality of points on a movement route, including a positioning unit that can measure a present position; a movement measuring unit for measuring a relative positional change; a position calculating unit for calculating position data of the plurality of points on the movement route on the basis of position data of a first reference point and positional change data obtained through measurement of the movement measuring unit; and a correcting unit for correcting the position data of at least one of the plurality of points calculated by the position calculating unit on the basis of difference information representing difference between a position represented by the position data calculated by the position calculating unit and a position represented by a positioning result of the positioning unit with respect to any second reference point on the movement route.
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Citations
14 Claims
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1. A positioning device for obtaining position data of a plurality of points on a movement route, comprising:
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a positioning unit that can measure a present position without requiring any past position data serving as a reference; a movement measuring unit for measuring a relative positional change; a position calculating unit for calculating position data of the plurality of points on the movement route on the basis of position data of a first reference point and positional change data obtained through measurement of the movement measuring unit; and a correcting unit for correcting the position data of at least one of the plurality of points calculated by the position calculating unit on the basis of difference information representing difference between a position represented by the position data calculated by the position calculating unit and a position represented by a positioning result of the positioning unit with respect to any second reference point on the movement route. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A positioning method for obtaining position data of a plurality of points on a movement route by using a positioning unit which can measure a present position and a movement measuring unit for measuring a relative positional change, comprising:
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a position calculating step of calculating position data of the plurality of points on the movement route on the basis of position data of a first reference point and positional change data obtained through measurement of the movement measuring unit; a difference information obtaining step of obtaining difference information representing difference between a position represented by the position data calculated in the position calculating step and a position represented by a positioning result of the positioning unit with respect to any second reference point on the movement route; and a correcting step of correcting the position data of at least one of the plurality of points calculated in the position calculating step on the basis of the difference information.
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14. A storage medium storing a program readable by a computer that receives measurement results from a positioning unit for measuring a present position and a movement measuring unit for measuring a relative positional change and obtains position data of a plurality of points on a movement route, the storage medium storing a program making the computer execute:
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a position calculating function of calculating position data of the plurality of points on the movement route on the basis of position data of a first reference point and positional change data obtained through measurement of the movement measuring unit; a difference information obtaining function of obtaining difference information representing difference between a position represented by the position data calculated by the position calculating function and a position represented by a positioning result of the positioning unit with respect to any second reference point on the movement route; and a correcting function of correcting the position data of at least one of the plurality of points calculated by the position calculating function on the basis of the difference information.
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Specification