TY - JOUR

T1 - Environmental and structural health monitoring by optoelectronic scanner

AU - Sergiyenko, Oleg

AU - Mercorelli, Paolo

AU - Flores-Fuentes, Wendy

AU - Tyrsa, Vera V.

PY - 2014

Y1 - 2014

N2 - Important objects of natural environment, ecologic landscapes, as well as big engineering constructions, require geometrical monitoring to predict its structural health during their lifetime. That monitoring by geodetic devices, wireless networks or GPS technology is not always optimal; sometimes it is impossible as shown. The method based on geodetic measurements automation applying local optical scanners for monitoring in natural environment is proposed. It is based on the novel method of plane spatial angles precise measurement. It consider robust invariant AD-conversion angle-to-code for instant dynamic angle, signal energetic center search method, initial reference scale adjustment, and uncertainty decrease by mediant fractions formalism for result approximation. It is described system parts interaction for spatial angle encoding with beforehand set accuracy. Method is appropriable for uncertainty reduction limited only by reasonable ratio “uncertainty/operation velocity”. The operation range, accuracy, scanners operation velocity, and its adoptions on the objects were described. Presented experimental results confirms that in front of passive scanning aperture our system overcomes main recently known optical devices for 3D coordinates recognition in offset uncertainty.

AB - Important objects of natural environment, ecologic landscapes, as well as big engineering constructions, require geometrical monitoring to predict its structural health during their lifetime. That monitoring by geodetic devices, wireless networks or GPS technology is not always optimal; sometimes it is impossible as shown. The method based on geodetic measurements automation applying local optical scanners for monitoring in natural environment is proposed. It is based on the novel method of plane spatial angles precise measurement. It consider robust invariant AD-conversion angle-to-code for instant dynamic angle, signal energetic center search method, initial reference scale adjustment, and uncertainty decrease by mediant fractions formalism for result approximation. It is described system parts interaction for spatial angle encoding with beforehand set accuracy. Method is appropriable for uncertainty reduction limited only by reasonable ratio “uncertainty/operation velocity”. The operation range, accuracy, scanners operation velocity, and its adoptions on the objects were described. Presented experimental results confirms that in front of passive scanning aperture our system overcomes main recently known optical devices for 3D coordinates recognition in offset uncertainty.

KW - Engineering

KW - optical instruments

KW - scanning aperture

KW - solid angle

KW - surface figure measurement

KW - measurement result rational approximations

KW - mediants

UR - http://journals.uran.ua/index.php/2311-1828/article/view/53611/49656

UR - http://journals.uran.ua/index.php/2311-1828/article/view/53611

M3 - Journal articles

SP - 116

EP - 128

JO - Engineering of Nature Management

JF - Engineering of Nature Management

SN - 2311-1828

IS - 2

ER -