EP 0917515 B1 20011010 - DEVICE FOR SELF-LOCATION OF A TRACK-GUIDED VEHICLE
Title (en)
DEVICE FOR SELF-LOCATION OF A TRACK-GUIDED VEHICLE
Title (de)
EINRICHTUNG ZUR EIGENORTUNG EINES SPURGEFÜHRTEN FAHRZEUGS
Title (fr)
DISPOSITIF DE LOCALISATION PROPRE D'UN VEHICULE GUIDE PAR UNE VOIE
Publication
Application
Priority
- DE 9701411 W 19970701
- DE 19627343 A 19960701
Abstract (en)
[origin: US6168119B1] On vehicles on which only a single receiving antenna is provided or where a plurality of receiving antennas which are arranged side by side and are coupled to the forward and return conductors of a line conductor are provided, the phase angle of the received voltage is retained when the voltage drops below a given received level. If the level of the received voltage rises again, the prevailing phase angle of the received voltage can be compared with that of the retained received voltage. If the received voltages to be compared are found to be in phase opposition, it is deduced that a line conductor intersection point has been passed; if they are in phase, transient transmission interference is inferred. The phase angle of the comparative voltage is preferably retained by a flywheel oscillator, with the time offset between the prevailing received voltage and the comparative voltage preferably being determined by weighting the peak values of the two voltages.
IPC 1-7
IPC 8 full level
B61L 3/22 (2006.01)
CPC (source: EP US)
B61L 3/225 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR GR IT LI NL SE
DOCDB simple family (publication)
US 6168119 B1 20010102; AT E206676 T1 20011015; CN 1136114 C 20040128; CN 1228060 A 19990908; DE 19627343 A1 19980108; DE 59704885 D1 20011115; EP 0917515 A2 19990526; EP 0917515 B1 20011010; WO 9800328 A2 19980108; WO 9800328 A3 19980312
DOCDB simple family (application)
US 21419799 A 19990920; AT 97933620 T 19970701; CN 97197353 A 19970701; DE 19627343 A 19960701; DE 59704885 T 19970701; DE 9701411 W 19970701; EP 97933620 A 19970701