| 摘要 |
<p>PCT No. PCT/JP87/00367 Sec. 371 Date Aug. 15, 1988 Sec. 102(e) Date Aug. 15, 1988 PCT Filed Jun. 9, 1987 PCT Pub. No. WO88/09982 PCT Pub. Date Dec. 15, 1988.A ground guidance system for airplanes in which loop coils of a predetermined shape are continuously buried in a specific section of a taxiway for airplanes, an airplane is continuously detected based on changes of self-inductances of the loop coils with movement of the airplane while discriminating airplanes from other objects and admission or inhibition of advance in the specific section to a subsequent airplane according to the presence or absence of the airplane in the specific section and which has a fail-safe structure not generating an output at the time of a system or circuit failure or accident.</p> |
