POSITION CALCULATING METHOD AND POSITION CALCULATING DEVICE
First Claim
1. A position calculating method performed by a position calculating device carried with or mounted on a mobile body and moving with the mobile body, comprising:
- receiving a positioning signal from a positioning satellite;
calculating a position based on the received positioning signal;
intermittently operating a sensor unit which detects moving condition of the mobile body in predetermined intermittent operation cycle;
controlling the intermittent operation cycle according to the positioning signal receiving condition;
calculating a position by executing predetermined inertial navigation calculation by using a detection result from the sensor unit operated in the intermittent operation cycle; and
determining an output position by using the position calculated based on the positioning signal and the position calculated by the inertial navigation calculation.
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Accused Products
Abstract
A position calculating method performed by a position calculating device carried with or mounted on a mobile body and moving with the mobile body, includes: receiving a positioning signal from a positioning satellite; calculating a position based on the received positioning signal; intermittently operating a sensor unit which detects moving condition of the mobile body in predetermined intermittent operation cycle; controlling the intermittent operation cycle according to the positioning signal receiving condition; calculating a position by executing predetermined inertial navigation calculation by using a detection result from the sensor unit operated in the intermittent operation cycle; and determining an output position by using the position calculated based on the positioning signal and the position calculated by the inertial navigation calculation.
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Citations
8 Claims
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1. A position calculating method performed by a position calculating device carried with or mounted on a mobile body and moving with the mobile body, comprising:
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receiving a positioning signal from a positioning satellite; calculating a position based on the received positioning signal; intermittently operating a sensor unit which detects moving condition of the mobile body in predetermined intermittent operation cycle; controlling the intermittent operation cycle according to the positioning signal receiving condition; calculating a position by executing predetermined inertial navigation calculation by using a detection result from the sensor unit operated in the intermittent operation cycle; and determining an output position by using the position calculated based on the positioning signal and the position calculated by the inertial navigation calculation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A position calculating device carried with or mounted on a mobile body and moving with the mobile body, comprising:
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a receiving unit which receives a positioning signal from a positioning satellite; a first position calculating unit which calculates a position based on the received positioning signal; a sensor operation control unit which intermittently operates a sensor unit for detecting moving condition of the mobile body in predetermined intermittent operation cycle; an operation cycle control unit which controls the intermittent operation cycle according to the positioning signal receiving condition; a second position calculating unit which calculates a position by executing predetermined inertial navigation calculation by using a detection result from the sensor unit operated in the intermittent operation cycle; and a position determining unit which determines an output position by using the position calculated based on the positioning signal and the position calculated by the inertial navigation calculation.
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Specification