Clear track signalling device for railways

Abstract

Abstract 2.1 If train length signalling devices containing radar devices are used for clear track signalling, it has hitherto been possible for wrong signals to occur. It is the aim that such echo signals should not be processed to form speed values/train lengths which come from other vehicles for which no clear track signalling is to occur. 2.2 Echo signals can be subjected to a range selection by using a modulated radar transmitter (4) which feeds at the same time an antenna (6) directed vertically and an antenna (7) directed obliquely towards the train to be evaluated. The echo signals picked up by one antenna (6) determine the beginning and end of the train; the echo signals from the other, obliquely directed antenna (7) produce the respective train speed. 2.3 Railway safety engineering/clear track signalling. <IMAGE>

Inventors

• 👤 Klaus Dr.-Ing. Von Pieverling
• 👤 Gerhard Dipl.-Ing. Ritter

Bibliographic Details