EP 1047955 A1 20001102 - METHOD AND DEVICE FOR DETERMINING MEASURING PERIODS FOR SATELLITE MEASUREMENT OF POINTS AT LEAST PARTIALLY SURROUNDED BY VISUAL OBSTACLES
Title (en)
METHOD AND DEVICE FOR DETERMINING MEASURING PERIODS FOR SATELLITE MEASUREMENT OF POINTS AT LEAST PARTIALLY SURROUNDED BY VISUAL OBSTACLES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ERMITTLUNG VON MESSZEITRÄUMEN FÜR DIE VERMESSUNG VON VON SICHTHINDERNISSEN ZUMINDEST TEILWEISE UMGEBENEN PUNKTEN MITTELS SATELLITEN
Title (fr)
DISPOSITIF ET PROCEDE PERMETTANT DE DETERMINER DES PERIODES DE MESURE POUR LA MESURE PAR SATELLITES DE POINTS ENTOURES AU MOINS PARTIELLEMENT D'OBSTACLES A LA VUE
Publication
Application
Priority
- DE 19749818 A 19971111
- DE 19828079 A 19980624
- EP 9807228 W 19981111
Abstract (en)
[origin: WO9924846A1] A device for determining measuring periods for satellite measurement of points at least partially surrounded by visual obstacles, comprising a pick up device (11) for digital reception of an image recording said visual obstacles from one measuring point in the sky, whereby the pick-up device (11) has a sensor (14) with a plurality of individual light-sensitive pixels. Said device also comprises a processing unit (16) which is connected to or which can be connected to the pick-up device (11) and which receives output pixel signals from the sensor (14) whereby said output signals are used to recognize visual obstacles (28) as opposed to free areas (30) inside the digital recording and at least one measuring period is calculated according to the size and the position of the free areas (30) or obstacles. a sufficient satellite constellation is provided during said period to enable the point to be measured by satellite.
IPC 1-7
IPC 8 full level
G01C 21/20 (2006.01); G01C 11/02 (2006.01); G01C 15/00 (2006.01); G01S 1/00 (2006.01); G01S 19/26 (2010.01); G01S 19/28 (2010.01); G01S 19/23 (2010.01)
CPC (source: EP)
G01C 11/02 (2013.01); G01C 15/00 (2013.01); G01S 19/26 (2013.01); G01S 19/28 (2013.01); G01S 19/23 (2013.01)
Citation (search report)
See references of WO 9924846A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL
DOCDB simple family (publication)
WO 9924846 A1 19990520; AU 1235099 A 19990531; DE 19881685 B4 20050407; DE 19881685 D2 20000810; DE 29823699 U1 19991021; EP 1047955 A1 20001102; JP 2001523006 A 20011120
DOCDB simple family (application)
EP 9807228 W 19981111; AU 1235099 A 19981111; DE 19881685 T 19981111; DE 29823699 U 19981111; EP 98955574 A 19981111; JP 2000519795 A 19981111