OBSERVATION METHOD FOR GROUND DISPLACEMENT, AND INFORMATION PROCESSOR

PROBLEM TO BE SOLVED: To effectively use a wireless device for transmitting a measurement value of an inclination sensor.SOLUTION: In a ground displacement observation system 1 generating information relating to inclination due to a ground displacement in an area 2 by an information processor (a gateway device 20, a server device 30) based on the average of the magnitude of a component in a vertical direction for the inclination vector due to disturbance from among inclination vectors due to the ground displacement with respect to each vector before and after the sequential change of an inclination angle (displacement angle) relating to each of a plurality of inclination sensors 15, it is unable to determine in which side of the left or the right the direction of the inclination vector due to the disturbance exists with respect to the direction of the inclination vector due to the ground displacement, and a wireless device (long distance) 13 accompanying the inclination sensor 15 that does not contribute to a calculation of an average value is used as a relay device for relay transmitting a measurement value of the inclination sensor 15 to the information processor.SELECTED DRAWING: Figure 8 【課題】傾斜センサの計測値を送信する無線装置の有効利用を図る。【解決手段】情報処理装置（ゲートウェイ装置２０，サーバ装置３０）が、複数の傾斜センサ１５の夫々について傾斜角（変位角）の時系列的な変化の前後の各ベクトルについて地盤変位による傾斜ベクトルのうち、外乱による傾斜ベクトルに対して垂直な方向の成分の大きさの平均に基づきエリア２における地盤変位による傾斜に関する情報を生成する地盤変位観測システム１において、外乱による傾斜ベクトルの方向が地盤変位による傾斜ベクトルの方向に対して左右何れの側にあるか判定できず、平均値の算出に寄与しない傾斜センサ１５に付随する無線装置（遠距離）１３を、傾斜センサ１５の計測値を情報処理装置に中継送信する中継装置として利用する。【選択図】図８