A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MANHOLE COVER ABNORMALITY DETERMINATION DEVICE
To provide a manhole cover abnormality determination device which can correctly determine an abnormality of a manhole cover.SOLUTION: A manhole cover abnormality determination device 1 comprises: vibration sensors 15, 15 which can independently detect the road surface vibration from a pair of left and right wheels 3, 3 of a vehicle 2; a manhole cover detection sensor 10 which can detect a manhole cover 7 on a travel line of the wheels 3, 3; and an abnormality determination unit 25 which determines the presence/absence of an abnormality of the manhole cover 7 based on information about the vibration. The abnormality determination unit 25 determines the presence/absence of the abnormality of the manhole cover 7 under such a condition that the manhole cover detection sensor 10 detects the manhole cover 7 on the travel line of at least one wheel 3. The abnormality determination unit 25 can determine the presence/absence of the abnormality of the manhole cover 7 on the basis of a difference in power spectrum densities of the left and right wheels 3, 3.SELECTED DRAWING: Figure 1
【課題】マンホール蓋の異常判定を正確に行うことが可能なマンホール蓋異常判定装置を提供することを課題とする。【解決手段】マンホール蓋異常判定装置１は、車両２の左右一対の車輪３，３からの路面振動を独立して検出可能な振動センサ１５，１５と、車輪３，３の走行線上のマンホール蓋７を検出可能なマンホール蓋検出センサ１０と、振動の情報に基づきマンホール蓋７の異常の有無の判定を行う異常判定部２５と、を備える。異常判定部２５は、マンホール蓋検出センサ１０が、少なくとも一方の車輪３の走行線上においてマンホール蓋７を検出することを条件として、マンホール蓋７の異常の有無の判定を行う。異常判定部２５は、左右車輪３，３のパワースペクトル密度の差に基づいてマンホール蓋７の異常の有無を判定できる。【選択図】図１
MANHOLE COVER ABNORMALITY DETERMINATION DEVICE
To provide a manhole cover abnormality determination device which can correctly determine an abnormality of a manhole cover.SOLUTION: A manhole cover abnormality determination device 1 comprises: vibration sensors 15, 15 which can independently detect the road surface vibration from a pair of left and right wheels 3, 3 of a vehicle 2; a manhole cover detection sensor 10 which can detect a manhole cover 7 on a travel line of the wheels 3, 3; and an abnormality determination unit 25 which determines the presence/absence of an abnormality of the manhole cover 7 based on information about the vibration. The abnormality determination unit 25 determines the presence/absence of the abnormality of the manhole cover 7 under such a condition that the manhole cover detection sensor 10 detects the manhole cover 7 on the travel line of at least one wheel 3. The abnormality determination unit 25 can determine the presence/absence of the abnormality of the manhole cover 7 on the basis of a difference in power spectrum densities of the left and right wheels 3, 3.SELECTED DRAWING: Figure 1
【課題】マンホール蓋の異常判定を正確に行うことが可能なマンホール蓋異常判定装置を提供することを課題とする。【解決手段】マンホール蓋異常判定装置１は、車両２の左右一対の車輪３，３からの路面振動を独立して検出可能な振動センサ１５，１５と、車輪３，３の走行線上のマンホール蓋７を検出可能なマンホール蓋検出センサ１０と、振動の情報に基づきマンホール蓋７の異常の有無の判定を行う異常判定部２５と、を備える。異常判定部２５は、マンホール蓋検出センサ１０が、少なくとも一方の車輪３の走行線上においてマンホール蓋７を検出することを条件として、マンホール蓋７の異常の有無の判定を行う。異常判定部２５は、左右車輪３，３のパワースペクトル密度の差に基づいてマンホール蓋７の異常の有無を判定できる。【選択図】図１
MANHOLE COVER ABNORMALITY DETERMINATION DEVICE
マンホール蓋異常判定装置
OMORI KOHEI (author) / KUMON TOMOHIRO (author)
2023-09-14
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
G01H
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
,
Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen
/
G01M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
,
Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen