A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a ground collapse detection system which does not require a worker to step into a dangerous slope face having a risk of mudslide and has high detection accuracy.SOLUTION: A ground collapse detection device comprises: a plurality of cameras 1 and 10 which are installed in places away from a monitoring object slope face having a risk of sediment disaster due to ground collapse and take images of the monitoring object slope face from different angles; and a calculation processing device 31 which processes image data taken by the cameras 1 and 10. The calculation processing device 31 has: a three-dimensional model generation section 31a which generates a three-dimensional model from a plurality of two-dimensional image data obtained through respective cameras 1 and 10; a coordinate data acquisition section 31b which acquires three-dimensional coordinate data of specific points from the three-dimensional model; and a displacement detection section 31c which detects minute displacement of the monitoring object slope face from a change in the acquired three-dimensional coordinate data.SELECTED DRAWING: Figure 1
【課題】土砂崩れ等が発生するおそれがある危険な斜面へ作業者が立ち入る必要がなく、しかも検知の精度が高い地盤崩壊検知システムを提供する。【解決手段】地盤崩壊による土砂災害が発生するおそれのある監視対象斜面から離れた遠隔地に設置されて監視対象斜面を異なる視点で撮影する複数のカメラ１，１０と、カメラ１，１０による画像データを処理する演算処理装置３１を備え、演算処理装置３１が、各カメラ１，１０による複数の二次元画像データから三次元モデルを生成する三次元モデル生成部３１ａと、三次元モデルから特定箇所の三次元座標データを取得する座標データ取得部３１ｂと、取得された三次元座標データの変化から監視対象斜面の微少変位を検知する変位検知部３１ｃを備える。【選択図】図１
PROBLEM TO BE SOLVED: To provide a ground collapse detection system which does not require a worker to step into a dangerous slope face having a risk of mudslide and has high detection accuracy.SOLUTION: A ground collapse detection device comprises: a plurality of cameras 1 and 10 which are installed in places away from a monitoring object slope face having a risk of sediment disaster due to ground collapse and take images of the monitoring object slope face from different angles; and a calculation processing device 31 which processes image data taken by the cameras 1 and 10. The calculation processing device 31 has: a three-dimensional model generation section 31a which generates a three-dimensional model from a plurality of two-dimensional image data obtained through respective cameras 1 and 10; a coordinate data acquisition section 31b which acquires three-dimensional coordinate data of specific points from the three-dimensional model; and a displacement detection section 31c which detects minute displacement of the monitoring object slope face from a change in the acquired three-dimensional coordinate data.SELECTED DRAWING: Figure 1
【課題】土砂崩れ等が発生するおそれがある危険な斜面へ作業者が立ち入る必要がなく、しかも検知の精度が高い地盤崩壊検知システムを提供する。【解決手段】地盤崩壊による土砂災害が発生するおそれのある監視対象斜面から離れた遠隔地に設置されて監視対象斜面を異なる視点で撮影する複数のカメラ１，１０と、カメラ１，１０による画像データを処理する演算処理装置３１を備え、演算処理装置３１が、各カメラ１，１０による複数の二次元画像データから三次元モデルを生成する三次元モデル生成部３１ａと、三次元モデルから特定箇所の三次元座標データを取得する座標データ取得部３１ｂと、取得された三次元座標データの変化から監視対象斜面の微少変位を検知する変位検知部３１ｃを備える。【選択図】図１
GROUND COLLAPSE DETECTION SYSTEM
地盤崩壊検知システム
MORITOKI YU (author)
2016-10-13
Patent
Electronic Resource
Japanese
IPC:
G01C
Messen von Entfernungen, Höhen, Neigungen oder Richtungen
,
MEASURING DISTANCES, LEVELS OR BEARINGS
/
E02D
FOUNDATIONS
,
Gründungen
/
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
G08B
SIGNALLING OR CALLING SYSTEMS
,
Signalisier- oder Rufsysteme
Culvert could hold clue to Newburn ground collapse
British Library Online Contents | 2012
A Research on the Ground Collapse in Guilin
| British Library Conference Proceedings | 1996