MOVEMENT STATE DETERMINING DEVICE, ELECTRONIC TIMEPIECE, MOVEMENT STATE DETERMINATION METHOD AND PROGRAM

• Main Authors: MATSUE TSUYOSHI, SEKIZUKA TATSUYA
• Format: Patent
• Language: English; Japanese
• Published: 18.04.2019
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; GYROSCOPIC INSTRUMENTS; HOROLOGY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; RADIO-CONTROLLED TIME-PIECES; SURVEYING; TESTING

To provide a movement state determining device, an electronic timepiece, a movement state determination method and a program with which it is possible to reduce determination variation and erroneous determination.SOLUTION: The movement state determining device comprises a reception unit for receiving a radio wave from a positioning satellite and a control unit. The control unit determines the movement state of the own device on the basis of the motion state measured by a measurement unit that measures the motion state, performs positioning on the basis of information received by the reception unit and acquires the current position and its error range. The positioning result acquired when the error range satisfies a prescribed accuracy standard is considered usable for the determination of the movement state. The error range is calculated taking into account the positioning accuracy obtained by combining each of radio wave reception states with the position of each of a plurality of positioning satellites from which radio waves were received and the deviation of the acquired current position from a predicted position that is obtained in accordance with the movement state of the own device.SELECTED DRAWING: Figure 5 【課題】判定ぶれや誤判定をより少なくすることのできる移動状態判別装置、電子時計、移動状態判別方法及びプログラムを提供する。【解決手段】移動状態判別装置は、測位衛星からの電波の受信部と、制御部と、を備え、制御部は、運動状態を計測する計測部により計測された運動状態に基づいて自機の移動状態を判定し、受信部により受信された情報に基づいて測位を行って現在位置及びその誤差範囲を取得し、移動状態の判定には、誤差範囲が所定の精度基準を満たしている場合に取得された測位の結果が利用可能とされ、誤差範囲は、電波が受信された複数の測位衛星の各位置に対して電波の各受信状態をそれぞれ組み合わせて得られる測位精度と、自機の移動状況に応じて求められる予測位置に対する取得された現在位置のずれとをそれぞれ考慮して算出される。【選択図】図５