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POSITIONING SYSTEM AND RECEIVING TERMINAL USED THEREIN

  • US 20080281520A1
  • Filed: 05/09/2008
  • Published: 11/13/2008
  • Est. Priority Date: 05/10/2007
  • Status: Active Grant
First Claim
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1. A positioning system comprising:

  • a receiving terminal having a storage section capable of storing positioning data acquired from a satellite for a predetermined time;

    an arithmetic processor capable of analyzing positioning data acquired from a satellite; and

    a communication unit enabling communication between the arithmetic processor and the receiving terminal, the positioning system being capable of positioning of a positioning target location by placing the receiving terminal at the positioning target location in a fixed manner, whereinthe arithmetic processor comprises;

    a storage section that is capable of storing, as analysis data, the positioning data received from the receiving terminal; and

    an analyzing section that is capable of analyzing the analysis data stored in the storage section, the arithmetic processor, upon reception of the positioning data from the receiving terminal, accumulates the received positioning data on the analysis data stored in the storage section prior to the reception, stores the thus accumulated data as new analysis data, analyzes the new analysis data in the analyzing section and then transmits an analysis result to the receiving terminal,the receiving terminal comprises;

    a good-or-poor determining section that determines whether the analysis result received from the arithmetic processor is good or poor, the receiving terminal, once the positioning data is stored in the storage section for the predetermined time from an acquisition start time, transmits the positioning data to the arithmetic processor and continues to acquire the positioning data, and upon reception of the analysis result of the analysis data from the arithmetic processor, the receiving terminal determines whether the received analysis result is good or poor using the good-or-poor determining section, when the received analysis result is determined as poor and the positioning data is stored in the storage section for the predetermined time from a last transmission of the positioning data, the receiving terminal transmits the positioning data to the arithmetic processor and continues to acquire the positioning data, and when the received analysis result is determined as good, the receiving terminal completes the positioning of the positioning target location.

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