Wireless communication apparatus and wireless positioning system

摘要

In a wireless communication apparatus, data transmitted from at least one wireless transmitter is received by direct wireless communication, and its wireless reception condition is detected. Relation reference information setting two or more relations between the wireless reception condition on a reception of transmitted data and location information of the transmitter is stored. Relative distance information of a relative distance between the transmitter and the apparatus is measured. Relation information indicating a relation between the wireless reception conditions and the relative distance information is generated. A relation between the location information and the relative distance information is determined by comparing the relation reference information and the relation information. A current location of the apparatus is determined on the basis of the relation between the location information and the relative distance information and a current wireless reception condition.

主权项

1. A wireless communication apparatus, comprising:
a wireless communicating unit that receives data transmitted from at least one wireless transmitter by direct wireless communication, the at least one wireless transmitter transmitting data in a wireless manner; a detecting unit that detects a wireless reception condition in the wireless communicating unit; a reference information storing unit that stores relation reference information that sets two or more relations between (i) the wireless reception condition in the wireless communicating unit on a reception of data transmitted from the wireless transmitter and (ii) location information relating to a location of the wireless transmitter; a distance measuring unit that measures relative distance information relating to a relative distance between the wireless transmitter and the wireless communication apparatus: a first generating unit that generates first relation information indicating a relation between a plurality of the wireless reception conditions detected by the detecting unit and a plurality of the relative distance information measured by the distance measuring unit; a relation determining unit that determines a relation between the location information and the relative distance information by comparing the relation reference information and the first relation information; and a position determining unit that determines a current location of the wireless communication apparatus on the basis of (a) the relation between the location information and the relative distance information determined by the relation determining unit and (b) a current wireless reception condition in the wireless communicating unit detected by the detecting unit.