MEASUREMENT DEVICE, MEASUREMENT METHOD, AND MEASUREMENT PROGRAM

• Main Authors: SENDA YOSUKE, YAMAZAKI HIROYUKI, BAN RYOICHI, TATSUMI KOJI, NAGASHIMA SHIRO
• Format: Patent
• Language: English; Japanese
• Published: 28.01.2016
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; NEW BREEDS OF ANIMALS; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; TRAPPING

PROBLEM TO BE SOLVED: To measure a walking state of a four-footed animal to which a measurement device is attached, while suppressing power consumption by the measurement device.SOLUTION: A measurement program makes a measurement device attached to a four-footed animal: acquire acceleration data in three-dimensional space from an acceleration sensor attached to the four-footed animal; identify a gait of the four-footed animal by using the acquired acceleration data; determine, by using the identified gait of the four-footed animal, whether or not a movement of the four-footed animal's right front leg and left rear leg and that of the four-footed animal's left front leg and right rear leg are individually paired; calculate, by using the acquired acceleration data, a value showing kinetic energy for each period of three successive periods in time variance of the acquired acceleration data when it is determined that the movement of the four-footed animal's right front leg and left rear leg and that of the four-footed animal's left front leg and right rear leg are individually paired; and calculate, by using the calculated value showing the kinetic energy, a ratio of kinetic energy between periods adjacent to each other in the three successive periods and a ratio of kinetic energy between periods apart from each other by one period in the three successive periods. 【課題】計測装置における消費電力を抑えつつ、計測装置が装着された四脚動物の歩行状態を計測する。【解決手段】計測プログラムを、四脚動物に取り付けられた計測装置に、四脚動物に取り付けられた加速度センサから３次元空間の加速度データを取得させ、取得した加速度データを用いて四脚動物の歩容を特定させ、特定した四脚動物の歩容を用いて四脚動物の右前脚と左後脚、左前脚と右後脚の移動がそれぞれ対になっているか否かを判定させ、四脚動物の右前脚と左後脚、左前脚と右後脚の移動がそれぞれ対になっていると判定した場合に、取得した加速度データを用いて、取得した加速度データの時間変化における連続する３つの周期について、周期ごとの運動エネルギを示す値を算出させ、算出した運動エネルギを示す値を用いて、連続する３つの周期における隣り合う周期間の運動エネルギの比と１周期離れた周期間の運動エネルギの比を算出させるプログラムとする。【選択図】図３２