VEHICLE-MOUNTED COMMUNICATION DEVICE AND COMMUNICATION METHOD
First Claim
1. A vehicle-mounted communication device loaded into a vehicle, comprising:
- a communication unit which transmits information;
a position estimation information acquisition unit which periodically acquires a plurality of types of position estimation information capable of estimating a position of the vehicle;
a storage unit which stores the plurality of types of position estimation information acquired by the position estimation information acquisition unit with acquisition time information representing an acquisition time at which each of the position estimation information has been acquired associated with the position estimation information; and
a control unit which causes the communication unit to transmit information including the at least plurality of types of position estimation information,wherein among the transmitted plurality of types of position estimation information,the at least one type of position estimation information is the position estimation information with which the acquisition time information representing the latest acquisition time is associated among the one type of position estimation information, and the other type of position estimation information different from the one type of position estimation information is the position estimation information with which the acquisition time information representing the acquisition time closest to the acquisition time at which the one type of position estimation information has been acquired is associated.
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Accused Products
Abstract
An object is to enable a receiving side to estimate a position of a vehicle on a transmission side to be estimated with high accuracy. A vehicle-mounted communication device 1 loaded into a vehicle includes a vehicle-to-vehicle communication unit 15, a position estimation information acquisition unit 14 which periodically acquires a plurality of types of position estimation information, a storage unit 11 which stores the plurality of types of position estimation information with acquisition time information representing an acquisition time at which each of the position estimation information has been acquired associated with the position estimation information, and a control unit 10 which causes the vehicle-to-vehicle communication unit 15 to transmit vehicle information, in which among the transmitted plurality of types of position estimation information, the at least one type of position estimation information is the position estimation information with which the acquisition time information representing the latest acquisition time is associated among the one type of position estimation information, and the other type of position estimation information different from the one type of position estimation information is the position estimation information with which the acquisition time information representing the acquisition time closest to the acquisition time at which the one type of position estimation information has been acquired is associated.
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Citations
7 Claims
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1. A vehicle-mounted communication device loaded into a vehicle, comprising:
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a communication unit which transmits information; a position estimation information acquisition unit which periodically acquires a plurality of types of position estimation information capable of estimating a position of the vehicle; a storage unit which stores the plurality of types of position estimation information acquired by the position estimation information acquisition unit with acquisition time information representing an acquisition time at which each of the position estimation information has been acquired associated with the position estimation information; and a control unit which causes the communication unit to transmit information including the at least plurality of types of position estimation information, wherein among the transmitted plurality of types of position estimation information, the at least one type of position estimation information is the position estimation information with which the acquisition time information representing the latest acquisition time is associated among the one type of position estimation information, and the other type of position estimation information different from the one type of position estimation information is the position estimation information with which the acquisition time information representing the acquisition time closest to the acquisition time at which the one type of position estimation information has been acquired is associated. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A communication method comprising:
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periodically acquiring a plurality of types of position estimation information capable of estimating a position of a vehicle; storing the acquired plurality of types of position estimation information with acquisition time information representing an acquisition time at which each of the position estimation information has been acquired associated with the position estimation information; and transmitting information including the plurality of types of position estimation information, among which the at least one type of position estimation information is the position estimation information with which the acquisition time information representing the latest acquisition time is associated among the one type of position estimation information and the other type of position estimation information different from the one type of position estimation information is the position estimation information with which the acquisition time information representing the acquisition time closest to the acquisition time at which the one type of position estimation information has been acquired is associated.
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Specification