SEISMIC DEVICE AND SECURITY DEVICE USING THE SAME

• Main Authors: MURASE KOJI, KONISHI RYOHEI, TAKAHASHI YUKIHIDE, KITANO YUSUKE
• Format: Patent
• Language: English; Japanese
• Published: 09.08.2018
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide a seismic device capable of accurately discriminating an earthquake from a shock and calculating the strength of the earthquake.SOLUTION: The seismic device includes: an acceleration sensor 10 that sequentially outputs an acceleration value according to the magnitude of the acceleration of an applied vibration; an earthquake determination section 11 that discriminates an earthquake from a shock and determines based on the acceleration value; and a seismic intensity calculation unit 12 that calculates a seismic intensity equivalent value based on the acceleration value. The earthquake determination section 11 discriminates an earthquake from a shock based on a generation pattern of a binary (0 and 1) in which the acceleration value binarized by the predetermined threshold level.SELECTED DRAWING: Figure 1 【課題】地震と衝撃の判別を精度良く行うと共に、地震の強度を演算することが可能な、感震装置を提供すること。【解決手段】加えられた振動の加速度の大きさに応じた加速度値を逐次出力する加速度センサ１０と、加速度値から地震と衝撃を識別し判定する地震判定部１１と、加速度値から震度相当値を演算する震度演算部１２とを備え、地震判定部１１は、加速度値を所定の閾値で二値化した二値（０と１）の発生パターンから地震と衝撃を識別し判定する。【選択図】図１